Help meeeeeeeeeeeeeee ​

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Answers

Answer 1

AMSWER :

CHEMICAL FORMULA :

• WATER - H2O

• CARBONDIOXIDE - CO2

• SODIUM HYDROXIDE - NaOH

• SULPHURIC ACID - H2SO4

• SODIUM CHLORIDE - NaCI

• SODIUM BICARBONATE - NaCHO3


Related Questions

Occurs between a metal atom and a nonmetal atom.

Options:
Ionic Bond or Covalent Bond?

Answers

Ionic Bond is the correct answer

What chemical compound is produced as a result of photosynthesis?
a

Answers

Answer: Specifically, plants use energy from sunlight to react carbon dioxide and water to produce sugar (glucose) and oxygen.

Explanation:

glucose

the overall chemical reaction for photosynthesis is: 6 CO2 + 6 H2O + light → C6H12O6 + 6 O.

Carbon Dioxide + Water + Light yields Glucose + Oxygen

Which statement correctly compares ice and liquid water?
A. Both liquid water and ice have definite shapes.
B. Particles of liquid water have more energy than particles of ice.
C. Liquid water has a lower temperature than ice.
D. Ice has a definite volume, but liquid water does not.

Answers

Answer:

B. Particles of liquid water have more energy than particles of ice.

Explanation:

We can work this out through eliminating the wrong statements.

A. Both liquid water and ice have definite shapes.

This is wrong because, as stated in the question, water is a liquid, and one of the properties of liquids is that they change shape to fit the shape of their container. If it changes shape, it does not have a "definite" shape.

B. Particles of liquid water have more energy than particles of ice.

This is correct, and here is why. There are 3 states of matter: solid, liquid and gas. As you apply heat energy to an object at each state, the particles receive more energy and can move around more (this is kinetic energy). In the case of liquid (water) and solid (ice), particles in solids do not have much energy and stay in rigid formations. They do vibrate slightly, but only on the spot (this is what gives solids "definite" shapes). On the other hand, particles in liquids have more energy than particles in solids, which means that they can move more (more kinetic ENERGY) and do not stay in formations (this is why they do not have "definite" shapes). Therefore, particles in liquids (water) have more energy than particles in solids (ice), and this statement is correct.

C. Liquid water has a lower temperature than ice.

This is wrong because liquids have more energy than solids. As explained earlier, the reason why particles in liquids have more energy is because more HEAT energy has been applied to them. In the same way, solids have less energy because less HEAT energy has been applied to them. Less heat means a lower temperature. (Also you can use common sense for this one, ice feels colder than liquid water, right?)

D. Ice has a definite volume, but liquid water does not.

This is wrong because of the law of conservation of mass. This law states that particles (or matter or volume) cannot be created or destroyed. When ice melts and becomes liquid water, it has not lost volume: the particles have just gained more energy. This question is most likely there to confuse you, because all substances have definite volumes.

I hope this helps!

If you have two pistons in a system, which exerts the larger force?

Answers

Answer:

The larger piston

Explanation:

(i just took the same test)

If there are 100 black beans, 27 brown beans, and 173 white beans in the container, what is the percent composition of the container by bean

Answers

Answer:

300

Explanation:

Las legumbres son semillas de plantas grandes, carnosas y coloridas. Los frijoles, los guisantes (arvejas) y las lentejas son todos tipos de legumbres.

Help meeeeeeeeeeeeeee ​

Answers

this is the answer hope it helps you!!

how is an inoculating loop or needle sterilized prior to use?

Answers

Answer:

it is placed over a bunsen burner to heat up and remove all bacteria

Explanation:

Draw the reaction of bromoethyne with 2 molecules of HBr. Name the product(s) and the type of reaction.
PLEASE HELP!!

Answers

this maybe can help you

i am sorry if not

Bromo-ethene is a product and it is a electrophilic addition reaction.

What is chemical equation?

A chemical equation is a method of representing a symbols and formulas of substance involved in this equation.

For example:  zinc metal reacts with dilute sulfuric acid to form zinc sulfate and hydrogen gas.

Types of chemical reactions:

combination reactions decomposition reaction precipitation reaction neutralization reaction

Electrophilic addition reaction

In this reaction containing a double or triple bond and this one hour breakdown into 2 π and 2 Sigma bonds.

In this reaction HBr undergoes heterolytic bond fusion the protons bonds with the carbon atom of the Carbon triple bond this result in the formation of carbo cation immediate the bromide iron forms a bond with the carbon cation producing Bromo-Ethene.

CH ≡ CBr + 2HBr  →  Br-CH=CH₂ (Bromo-ethene)

In these reaction Bromo-ethyne react with hydrogen bromide it form Bromo-ethene.

Bromo-ethene is a product and it is a electrophilic addition reaction.

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why do garden manure and compost fertilize the soil​

Answers

gardens arent real the government is lying the world is a simulation

As the soil absorbs manure, nutrients are released. This enriches the soil, which in turn helps the plants. The most important benefit of using manure in the garden is its ability to condition the soil For instance, mixing manure with sandy soils helps to retain moisture levels.

Sharon reads two different articles about avocados. The first article, in a weight-loss magazine, claims that avocados are unhealthy because they are high in fat. The second article, in an annual publication from a doctors’ group, claims that the fat in avocados is a type that is good for the heart.

To assess these claims, which question might Sharon ask?

Which source do avocados come from?
Where are avocados sold?
Is the source an authority on the subject?
How much do avocados cost?

Answers

Answer:

The correct anwser would be C

Explanation:

Answer:

The answer is C. Is the source an authority on the subject?

Explanation:

answer please ASAP???? 50 pointtttsss
pls

Answers

Answer:

Whats the question

Explanation:

Answer:

Where is the question?

Explanation:

Anyways hru all? I've been pretty good

Find the number of protons, neutrons, and electrons for hydrogen-1, hydrogen-2, and hydrogen-3 respectively.

Answers

Answer:

Protons Neutron Electrons

hydrogen-1 1 0 1

hydrogen-2 1 1 1

hydrogen-3 1 2 1

Explanation:

hydrogen-1, hydrogen-2, and hydrogen-3 are all isotopes.

Isotopes have the same number of protons but a varying number of neutrons. Protons = Electrons.

Although almost 80% of the atmosphere is made up of nitrogen gas, most living things
don't have the enzymes necessary to use nitrogen directly from the atmosphere. How
we obtain the nitrogen we need to make proteins and DNA if we can't obtain it from
breathing?

Answers

Answer:

We don’t have the enzymes necessary to remove nitrogen from the atmosphere; we get our nitrogen from the food we eat. ^^

Although almost 80% of the atmosphere is made up of nitrogen gas, most living things don't have the enzymes necessary to use nitrogen directly from the atmosphere. We obtain the nitrogen we need to make proteins and DNA, if we can't obtain it from breathing we can get it by eating organic plants and animals.

Why is Nitrogen important for humans?

Nitrogen is a key element in the nucleic acids DNA and RNA, which are the most important of all biological molecules and crucial for all living things. DNA carries the genetic information, which means the instructions for how to make up a life form.

It is used to make amino acids in our body which in turn make proteins. The human body comprises 3% nitrogen (by mass). It is an essential part of amino acids (makeup proteins), nucleic acids (DNA, RNA), ATP (energy molecule), etc. It is nearly impossible to live without nitrogen.

Therefore, Although almost 80% of the atmosphere is made up of nitrogen gas, most living things don't have the enzymes necessary to use nitrogen directly from the atmosphere. We obtain the nitrogen we need to make proteins and DNA, if we can't obtain it from breathing we can get it by eating organic plants and animals.

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2. If Ben ran for 15 minutes and went 120 meters, how fast did he run?​

Answers

Answer:

8m/min

Explanation:

120 m / 15 min = 8 meters per min

8m/m
120 m / 15 m = 8

Which choice is an element?

A. Salad
B. Sugar
C. Water
D. Potassium

Answers

Answer: D. Potassium

Explanation:

A. Salad- a mixture of vegetables or fruits❌

B. Sugar- a compound made up of many elemnts❌

C. Water-  a molecule made up of two elements (water and hydrogen)❌

D. Potassium- the only pure element of the options provided.✅

Answer:

D, potassium

Explanation: took test ! btw

Helppppp I need it ASAP

Answers

Question 6
a) B
b) A

Question 7
a) Iron
b) oxygen, water
c) i) Galvanizing
ii) Painting

for 2.02
Control group: cricket frog population Reminder: The test variable is the item that is changing in this investigation. The outcome variable is the item that you are measuring in this investigation. The control group is the group in the experiment where the factors being tested are not applied. It allows scientists to set a baseline to compare the experimental groups that do have factors applied to them.
Test variable (independent variable):
Outcome variable (dependent variable):

Answers

Limiting factor- Food, Pollution, Predators.

Outcome variable (dependent variable): Cricket Frog (population)

Control group: Cricket Frogs in the Florida Everglades without changes in or manipulation of the population.

A mixture of neon and argon gases exerts a total pressure of 2.39 atm. The partial pressure of the neon alone is 1.84 atm, What is the partial pressure of the argon?

Answers

Answer:

0.55 atm

Explanation:

According to Dalton's law of partial pressures,

The total pressure is the summation of the partial pressures of individual gases in a sample of non-reactive gases.

Since Neon and Argon are noble gases, they do not react with each other. So we can apply Dalton's partial pressure law.

P total = P Ar + P Ne

2.39 atm = P Ar+ 1.84 atm

P Ar = 2.39 atm - 1.84 atm

       = 0.55 atm

According to the Dalton's law of partial  pressure the partial pressure of the argon is 0.55 atm.

What is pressure?

Pressure is defined as the force applied on an object perpendicular to it's surface per unit area over which it is distributed.Gauge pressure is a pressure which is related with the ambient pressure.

There are various units by which pressure is expressed most of which are derived units which are obtained from unit of force divided by unit of area . The SI unit of pressure is pascal .

It is a scalar quantity which is related to the vector area element with a normal force acting on it.It is distributed over solid boundaries and across arbitary sections of fluid normal to the boundaries at every point.

In this case, pressure of gas argon is obtained by subtracting pressure of gas neon  from the total pressure ,that is 2.39-1.84=0.55 atmosphere.

Thus ,the partial pressure of gas  argon in atmosphere is 0.55 atmosphere.

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What is climate? How does it differ from weather

Answers

Weather refers to short term atmospheric conditions while climate is the weather of a specific region averaged over a long period of time. Climate change refers to long-term changes.

2. A student wants to calculate the heat gained of 100 grams of water in order to
calculate the specific heat of a metal in the following problem. The water is
heated from 25C to 50C when the metal is added. The specific heat of water is
4.18 J/gºC. Use Q=m x CXAT*
5,225 J
10,450 J
20,900 J

Answers

Taking into account the definition of calorimetry, the correct answer is the third option:  The heat exchanged is 10,450 J.

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

The amount of heat (Q) necessary to vary the temperature of a mass (m) of a substance is proportional to the change in its temperature (∆T) and to that mass. So, the equation that allows calculating heat exchanges is:

Q = c× m× ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

In this case, you know:

c= 4.18 [tex]\frac{J}{gC}[/tex]m=100 gΔT= Tfinal - Tinitial= 50 C -25 C= 25 C

Replacing in the expresion for calorimetry:

Q = 4.18[tex]\frac{J}{gC}[/tex]× 100 g× 25 C

Solving:

Q= 10,450 J

Finally, the correct answer is the third option:  The heat exchanged is 10,450 J.

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Joshua loads a water balloon into a giant sling shot, pulls it back, and launches the balloon toward a target. The balloon misses the target by 3 feet, so he decides to try again. Which part of the process demonstrates an application of force?

Answers

When he pulls it back it applies force

Mg + 2HCl ---> MgCl2 + H2
How many grams of MgCl2 would result from a reaction involving 24.31 g of Mg?​

Answers

assumed that all of the initial Mg had reacted, therefore the total amount of Mg had transferred into Mg2+ in MgCl2

Molar mass for Mg is 24.31 g/mole and MgCl2 is 95.21 g/mole

--> nMgCl2= nMg = 24.31 g ÷ 24.31 g/mole = 1 mole

--> so the mass of MgCl2 = 1 mole × 95.21 g/mole = 95.21 g

Use the following image to answer the following questions. A student was performing an experiment using two identical cups made of styrofoam. The student had Cup A holding water at 90℃ and Cup B holding water at 20℃. The student then put an Aluminum Bar into each cup that was touching the water. As time passed, the student noticed that the temperature of the water in Cup A and Cup B began to change. Question:
A. Predict what will happen to the temperature of the water in Cup A and Cup B after 1 hour has passed.
B. Explain and give evidence for what type of heat transfer is occurring between the 2 cups.

Whoever answers my question gets brainliest

Answers

Answer:

The water will eventually become the same temature (A)

3. Write balanced ionic equations to show the dissolution of the following compounds in water: a) magnesium chloride​

Answers

Answer:

MgCl2 + H2O

Explanation:

Which of the following is a true statement?

Growth cycles only happen to reptiles.
Growth cycles happen to all animals.
Growth cycles only happen to birds.
Growth cycles only happen to mammals.

Answers

Answer:

its either all animals or only mammals. the thing with all animals is that they do have life cycles but not the same as like say humans or elephants, some are complicated.

Which statement best describes a physical change?

1 Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.
2 Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the same.
3 Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.
4 Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.

Answers

Answer:  3 Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same

Explanation:

Physical change mainly physical properties of a substance while the chemical changes remain unchanged. Once there is a change to the chemistry of the substance, this would be classified as a chemical change.

The answer is 2 because the composition won’t change just the physical aspects

Please describe what each of the molecules are doing and why there moving like that.

Answers

Solid: vibrating at fixed position, because they have a strong force of attraction
Liquid: molecules sliding over each other, because they have a weaker force of attraction than solids
Gas: molecules moving freely at random directions, because they almost have no force of attraction
movie make a Youness

cho các chất sau NaO2,Na,NaOH,Na2SO4,Na2SO3,NaCl,AgCl hãy lập thành dãy chuyển hoá , hoàn thành bằng phương tình phản ứng

Answers

Answer:

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Someone pls help me I will make you brain

Answers

Answer:

lll and ll

Explanation:

Will give BRAINLY if right

Which response is specific to the presence of pathogens in the body?

inflammation


vaccination


production of antibodies


production of viruses

Answers

Answer:

production of antibodies

Answer:

C

Explanation:

The body will start to make antibodies to rid of the "invasion".

So the answer is C

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What is the effect of the figurative language used in this excerpt? Choose two answers. It reveals Hamlets anger with himself. It reveals Hamlets love for Ophelia. It reveals Hamlets plan for retaliation. It reveals Hamlets hesitation to act. It reveals Hamlets distrust of Gertrude. Which line is made up of lambs?A. Listen, your majestyB. Pardon me for asking. C. Consider what I say.D. Ina minute, go home. some one plz help will make brailist if right Please help, Ill mark your answer as brainliest! I need help with find this problem out The vertices of a figure are given. Find the coordinates of the figure after the transformations given.J(1,1),K(3,4),L(5,1)Rotate 90 clockwise about the origin. Then dilate with respect to the origin using a scale factor of 3. A 89 kg object is suspended from 2 cables, with an angle of 120 degrees between them. What is thetension on each cable? (Assume each cable is at an equal angle above the horizontal) Answer inNewtons. HELP ILL DO ANYTHING PLZ What happens to book owners when the firemen come to burn their books? In Fahrenheit 451 dose anyone know the answer to this How would the electron configuration of nitrogen change to make a stable configuration?It would lose four electrons.It would gain three electrons.It would gain two electrons.It would lose five electrons.Which quantity determines how two atoms bond?the difference in the number of valence electronsthe difference in their electronegativitiestheir total number of valence electronsthe sum of their electronegativitiesWhich statement best explains why the elements in Group 18 do not have electronegativity values?The elements do not have electrons.The elements are too large.The elements have filled valence levels.The elements have only one electron shell.Based on patterns in the periodic table, which ion has a stable valence electron configuration?potassium (K) with a 1+ chargemagnesium (Mg) with a 1 chargesulfur (S) with a 1 chargefluorine (F) with a 1+ chargeWhich chemical formula represents a polyatomic ion?(1 point)Na+ClNaClClO Someone help me I will make you brain At December 31, Hawke Company reports the following results for its calendar year. Cash sales $80,000 Credit sales $200,000 In addition, its unadjusted trial balance includes the following items. Accounts receivable $108,000 debit Allowance for doubtful accounts $1,100debit An aging analysis estimates that 5% of year-end accounts receivable are uncollectible. Required:Show how Accounts Receivable and the Allowance for Doubtful Accounts appear on its December 31 balance sheet. What type of person was Sir Robert Clive? What changed following the end of feudalism/manorialism and how did that contribute to the Renaissance? some would describe american capitalism as? will give extra points to whoever answers first or gives best answer, please and thanks how many fifths are there in 4 wholes? (see the illustrate given) Make a list of any words that follow the 'warm worm'spelling rule. QUICK PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!1) What did David Carson get out of his University program?2) What companies have benefited from David Carson's style of Typeface? Which kind of directions are A, C, E, and G on the compass rose?cardinal directionsintermediate directionsPleaase help I'll give 50 points