Answer: the water molecules become more organized and heat is released into the atmosphere as a result.
Explanation:
Science and technology are different, yet related, fields of study. Which action is best classified as science?
A.
making a prosthetic leg to help a person walk
B.
building houses that can withstand strong earthquakes
C.
designing a faster type of computer
D.
analyzing cells of a newly discovered species
Answer:
Option D
Explanation:
analyzing cells is something I'm doing in science class right now!
Hope this helped, have a nice day! :)
Answer:
Science and technology are different, yet related, fields of study. Which action is best classified as science?
Explanation:
Giving brainliest please help with this question
Answer:
B! Hope this helps! :)
Explanation:
How many formula units are in 2.5 moles of NaCl?
Answer: 1.5 x 10 24
Explanation:
One mole of NaCl contains 6.022 x 1023 NaCl formula units
In 2.5 moles of NaCl there will be basically 5 moles of ions as per the given data.
What is a compound?A material created by joining two or more distinct elements chemically in science.
A compound in chemistry is a material comprised of two or more separate chemical elements mixed together in a certain proportion.
Chemical connections that are challenging to break are created when the elements interact with one another.
2.5 mol of NaCl contains 5 moles of ions. This is due to the fact that 1 mol of NaCl contains 2 mol of ions, so you must multiply the molecular weight of the molecule by two to obtain the number of ions.
Thus, the answer is 5 moles.
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How many moles of NaCl are present in 2.50 L of a 0.070 M solution?
a
2.8 x 10-2 moles of NaCl
b
35.7 moles of NaCl
c
1.75 x 10-4 moles of NaCl
d
0.175 moles of NaCl
Given :
Volume of NaCl solution 2.5 L .
Molarity of NaCl solution is 0.070 M .
To Find :
How many moles are present in the solution.
Solution :
Let, n be the number of moles.
We know, molarity is given by :
[tex]M = \dfrac{n}{V(in\ L)}[/tex]
So,
[tex]n = M \times V\\\\n = 0.070\times 2.5 \\\\n = 0.175\ moles[/tex]
Therefore, number of moles of NaCl is 0.175 moles.
What element was most recently discovered?(2010 A.D.)
Tennessine (Ts)
Element #117
Discovered: April 5, 2010
In an unexpected temperature change,
what causes the temperature change?
Answer:
WEATHER!
Explanation:
Weather can cause an unexpected temperature change! :) Hope this helps!
Which equation represents a conservation of atoms?
1.
2Fe + 202 → Fe2O3
2.
2Fe + 302 → Fe2O3
3.
4Fe + 202 → 2Fe2O3
4.
4Fe + 302 → 2Fe2O3
From the options, the reaction that shows the conservation of atoms is 4Fe + 302 → 2Fe2O3.
What is conservation of atoms?The idea of the conservation of atoms is that the number of atoms on the right hand side is equal to the number of atoms on the left hand side.
In this case, we have to a reaction equation which is balanced which is 4Fe + 302 → 2Fe2O3.
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What is the valency of argon?
Answer:
0 electrons in outermost shell as it is a noble gas
Answer:
the valency of argon is 0
since it has complete valence shells , so it doesn't react with any other element
CO2 + H20 ----> C6H1206 + 02
*
14. What are the reactants of the reaction?
Explanation:
[tex]CO _{2} \: and \: H _{2} O[/tex]
Reactants must be on the left hand side of the reaction
If you heat a liquid and measure the temperature at which it vaporizes (or boils) you are measuring...
A.) an atomic property
B.) a physical property
C.) a chemical property
Answer:
I believe that it is B
Explanation:
HURRY PLEASE!! An atomic physicist determines that an atom is composed of 8 positively charged particles and has a mass of 15 amu. Which is the best conclusion that can be drawn?
A)The atom has 7 neutrons and 8 protons.
B)The atom has 7 electrons and 8 protons.
C)The atom has 8 neutrons and 7 electrons.
D)The atom has 8 electrons and 7 protons.
What gas makes up the majority of the Earth's atmosphere
Answer: Nitrogen
Explanation: The atmosphere is actually mostly Nitrogen at 78% not oxygen.
Explain Joule's law in your own words. pls help
Answer:
Joules first law is a law that expresses the relatioship between heat that is generated and the current flowing heat thats through a conductor. The second law says that internal energy is independent of volume and pressure, depending only on temperature!
Explanation:
Cells get chemical energy from food through a series of chemical reactions called _______________
Answer: oxidation reactions
Explanation:
What is released during Cellular Respiration?
Energy from Glucose
Energy from Chlorophyl
Energy from Protein
Answer:
energy from glucose
Explanation:
⚠️HELP⚠️
Balance this equation
zinc ( s) + hydrogen sulfate (aq) hydrogen( (g) + zinc sulfate (aq) (hydrogen sulfate is a compound, not ion) +
Answer:
The balanced equation is :
Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)
Giving brainliest please help with this question
Answer:
B
Explanation:
What happens to your hypotheses as new information is gained
What is it?
Mg + O2 + Mgo
1. Decomposition
2.Double Displacement 3.Synthesis
4. Single Displacement
Answer:
The correct reaction is as follows:
2Mg + O2 → 2MgO
3. Synthesis
Explanation:
Chemical reactions are of different types depending on how they occur. One of these types is called SYNTHESIS OR COMBINATION REACTION. A synthesis reaction is that reaction in which two atoms of two elements are chemically combined to form a single molecule or compound. That is;
A + B → AB.
This is the case in this question where atoms of Magnesium (Mg) and oxygen (O) reacted to form a single compound of Magnesium oxide (MgO). Hence, it is said to be a SYNTHESIS REACTION.
What’s the meaning of low metabolism
Answer:
A person with a "low" (or slow) metabolism will burn fewer calories at rest and during activity and therefore has to eat less to avoid becoming overweight.
meaning of normal metabolism-Metabolism is the process by which your body converts what you eat and drink into energy. Even when you're at rest, your body needs energy for functions such as breathing, circulating blood and repairing cells. The energy your body uses for these basic functions is known as your basal metabolic rate.
A person with a low metabolism will burn fewer calories at rest and during activity and therefore has to eat less to avoid becoming overweight.
Signs of a slow metabolism
-You have gas.
-You crave sugar.
-You keep gaining weight.
-It's tough to lose weight.
-You always feel bloated.
-You have hypothyroidism.
-You easily develop cellulite.
-Your blood sugar is too high.
ALL I ask is you answer correctly I'm having a bad day ! :(
Jimmy Fallon was playing with acids and bases and was trying to determine how many grams of Copper (I) Hydroxide he would need to create 48.76 grams of Copper (I) Phosphate when reacting it with Phosphoric Acid.
Answer:
i have no clue whats going on here but imma act like i do.....
Explanation:
What are two ways that atoms of different elements are different?
Answer:Explanation:Protons and other subatomic particles will be discussed a little later. The atoms of different elements are different from each other because they have different numbers of protons. The graphic below illustrates this point by showing the atoms of two elements in the containers of oxygen and hydrogen.
Can someone figure this out for me thank you
Is it true that the direct transfer of thermal energy between particles of matter that are touching is called conduction.
Click Oil Basics to explore the natural resources needed for the production of plastics. Use the information to answer the question. Which of these ingredients is important in making plastics? carbon dioxide particulate matter natural gas plant liquids volatile organic compounds
Answer:
natural gas plant liquids
Explanation:
The ingredients that are important for the production of plastics are natural gas and plant liquids. The correct options are c and d.
What is plastic?Polymers are the primary component of a wide variety of synthetic or semisynthetic materials known as plastics. Due to their versatility and importance to civilization, plastics are a very important material. This is due to the fact that plastics can be bent and molded into a variety of objects, from plates to phones.
Radiation is to blame for this becoming possible. People who manufacture plastics can heat polymers sufficiently to allow them to bend by employing radiation. They can then be formed into a variety of things when this occurs.
Plastics are made from natural gases and liquids obtained from plants.
Therefore, the correct options are c, natural gas, and d, plant liquids.
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How would you balance this chemical equation?
Answer:
CH4 + 4Cl2 ===> CCl4 + 4HCl
Explanation:
If you are having trouble understanding how to balance equations, use chemical equation calculators and they tell you step by step.
Help!!!! What type of compound is N2O3? And what is its name?
Explanation:
Dinitrogen trioxide is a nitrogen oxide. Nitrogen trioxide appears as a blue liquid with a sharp, unpleasant chemical odor.
Description: Dinitrogen trioxide is a nitrogen oxide.ChEBINitrogen trioxide appears as ...
Synonyms: Dinitrogen trioxideNITROGEN TRIOXIDENitrogen oxide (N2O3)10544-7...
Molecular Formula: N2O3
Molecular Weight: 76.012 g/mol
Two important ways that energy is transported in the world around us is through
Explanation:
The two ways that energy can be transferred are by doing work and by heat transfer.
Please HELP!! Which best describes CO2?
1)This is an ionic compound; it is named carbon
dioxide.
2)This is a covalent compound; it is named
carbon oxide.
3)This is an ionic compound; it is named carbon
oxide.
4)This is a covalent compound; it is named
carbon dioxide.
Define the problem: How do the structure and properties of foods change as
their components change?
Part 1 - Research Baking Substitutes
Prepare a pamphlet about baking with substitutions for people with allergies or health
concems. Research the role that a common ingredient found in baked good plays in
creating the expected texture and structure Choices could include eggs, baking
powder, oil, milk, or sugar Describe an ingredient that could be used as a substitute for
the ingredient you have chosen
Include answers to questions such as the following in your leaflet
1. SEP Obtain Information What type or types of molecules or compounds are in
the ingredient?
Answer:
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