Chemistry High School

HAAAAAALP MEEEEEEEEEEE​

HAAAAAALP MEEEEEEEEEEE

Answers

Answer 1

Answer:

It would contain 10.

Explanation:

The atomic number: the number of protons.

Related Questions

An atom of an element with atomic number 48 and mass number 120 contains
A. 48 protons, 48 electrons, and 72 neutrons
B. 72 protons, 48 electrons, and 48 neutrons
C. 120 protons, 48 electrons, and 72 neutrons
D. 72 protons, 72 electrons, and 48 neutrons
Option 5

Answers

Answer:

a

Explanation:

proton remains same as the atomic number

electron remains same as the atomic number

Mass no.- atomic no. = Neutrons

What does it mean when two solid objects take up different spaces?

They have different masses.
They have different volumes.
They have different temperatures.
They have different weights.

Answers

Answer:

I'm pretty sure it's they have different masses. I don't know though

Explanation:

How do anion formation and valence electrons relate?

Answers

Answer:

Atoms gain valence electrons to form anions.

Explanation:

In general the state of matter with the most energy is ?

Answers

Gas

Gas particles got the most energy because of how freely the molecules move

Hope this helped you, have a good day bro cya)

Gas. Gas particles move freely so therefore they have the most energy. Hope this helps

Help me figure out these I’ll mark u brainliest
It’s science

Answers

Answer:

1. organic

2. plants

3. algae?

4. oxygen

5. Uses

What metal is highly reactive and bonds easily with other elements

Answers

Answer: alkali metal

Explanation: ONLY if that is in you suggestions

if not i think this is right

2. Differentiate the types of tectonic plates.

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Answer:

Explanation:

Convergent boundaries: where two plates are colliding. Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust. ...

Divergent boundaries – where two plates are moving apart. ...

Transform boundaries – where plates slide passed each other.

the modern model of the atom shows that electrons are:

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Electrons are orbiting the nucleus in the fxed way paths located in solid sphere

How many chiral carbon atoms are present in a molecule of 2,3,4-trichloropentane?

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Answer:

The answer is 2.

Explanation:

Someone pls help me I will make you brain

Answers

Answer:

Its the first one

Explanation:

I learned this before

write down ten laboratory safety rules​

Answers

laboratory safety rules:

~Avoid wye contact with all chemics

~ Avoid skin contact with all chemicals

~Always wear safety glasses

~Don't eat in the lab

~Don't drink anything in the lab

~Avoid wearing jewellery

~Don't taste or sniff any chemicals

~Kn0w emergency exit routes

~Never leave containers of chemicals open

~Avoid distracting anyone else working in the lab

Hope this helped you- have a good day bro cya)

1. Follow the instructions

2. Know the Location of Safety Equipment

3. Don't Eat or Drink in the Laboratory

4. Don't Taste or Sniff Chemicals

5. Don't Play Mad Scientist in the Laboratory

6. Dispose of Lab Waste Properly

7. Don't Experiment on Yourself

8. Leave Experiments at the Lab

9. Know What to Do With Lab Accidents

10. Dress for the Lab

Water quality tests show the presence of a single heavy metal in the drinking water pulled from a local river. Residents are suffering from numerous stomach ailments and are showing signs of long-term kidney damage. The residents of the next town, down river from the first town, seem to be unaffected. Water quality tests in the river by the second town show two types of heavy metals at acceptable legal limits in the water. One of the metals is the same as the one in the first town. What can scientists infer about the possible reason for the illnesses appearing in the first town but not the second?

One metal causes an acute effect, compared to the other.
One metal causes a chronic effect, compared to the other.
The heavy metals have a synergistic relationship when combined.
The heavy metals have an antagonistic relationship when combined.

Answers

Answer:

One metal causes a chronic effect, compared to the other

Explanation:

because the question only said ONE is the same, didn't they? so that would mean that not all the metals are the same for both towns

a measure of the ability of an atom in a chemical compound to attract electrons is called

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The answer is electronegativity

204,900,000,000
How many significant digits are found?

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Answer:

4

Explanation:

There are 4 significant figures because when there is not a decimal, then only numerical values over 0 are counted. So the numbers counted in sig figs are 2049, and none of the other 0s.

So if it was 204,900,000,000.0, then it would have 12 significant figures.

as you move across the periodic table atoms tend to get smaller because

Answers

Answer: because atoms have more protons

Explanation: just took the test

Please help serious answers only

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Answer:

Neptune and Saturn although Neptune isn't on there so just Saturn.

hope it'll help ya out!

Contrast the cause of the attraction in ionic bonds
and metallic bonds.

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Ionic bonds are held together by the electrostatic force of attraction between ions, whereas a metallic bond is due to the attraction of metallic cations for delocalized electrons.

Help me Plz, I am really confused

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O is a blood donor
AB receiver

If a proton is added to the nucleus of germaium what out comes would acure

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When a proton is added to the germanium nucleus, then its atomic number becomes 33, which is the atomic number of arsenic.

HOPE THIS HELPS YOU!!!!

?C6H6+O2 coefficient​

Answers

Answer:

2C6H6

Explanation:

C6H6 + O2 = CO2 + H2

2C6H6 + 15O2 → 12CO2 + 6H2O

Is it _________
To view _______ eclipse without eve protection.
A.Unsafe, lunar
B.Safe, solar
C.Unsafe, solar
D.Unsafe new moon

Answers

Answer:

unsafe, solar

Explanation:

A lunar eclipse covers the moon which is safe to look at. New Moon, again is simply the moon. However, we should never look at the sun, eclipsed or not!

Answer:

C, it is unsafe to view solar

without eye protection

Using the formula velocity = distance/time, how fast does sound travel in air at 20 degrees C given a distance of 500 m and 3.92 seconds.

A- 3.92
B- 127 m/s
C- 2,941 m/s
D- 746 m/s

Answers

Answer:

B : 127m/s

Explanation:

= 500 ÷ 3.92

= 127.5

Which of these is known as a push or pull upon an object that results from its interaction with another object?

Answers

Answer:

b

Explanation:

Answer:

force or velocity

Explanation:

I am not sure

Which elements are present in all organic compounds? 1. Hydrogen and oxygen 2. Nitrogen and Carbon 3. Nitrogen and oxygen 4. Hydrogen and Carbon

Answers

Answer:

my answer is num:3 Hydrogen and oxygen.

An astronomer is describing an orbiting body she recently observed. Based on this description, determine which region of the solar system the body is most likely to reside in:

At its closest, the observed body was 2.4 AU from the Sun. At this point, we were able to determine that it was composed primarily of rock and metal, although we do not know exactly which metals it contains. Its orbit is not a perfect ellipse because it moves slightly every time Jupiter passes by.

asteroid belt
inner planets
outer planets
Kuiper Belt
Oort cloud

Answers

Answer:

Asteroid belt

Explanation:

Answer:

asteriod belt i think?

Explanation:

sorry if im wrong but Jupiter does pass pretty close to the asteroid belt

Brainliest?

Claim: An ecosystem can survive with only producers.


Do you agree or disagree with this claim? Explain your answer. Be sure to include evidence and reasoning.

Answers

Answer:

No.

Explanation:

The reason for this is if everything in an ecosystem was a producer there would be nothing consuming and soon the ecosystem would be overwhelmed by two many products and nothing to consume them. A healthy ecosystem is a balanced cycle that makes sure everything is working properly and everything benefits something else. A food chain of sort is often seen in a balances ecosystem to show how everything is useful and needed. So in answer if there were only producers an ecosystem wouldn't thrive at its full potential, if at all.

I hope this helped! Brainliest if it did? No pressure!

Have a great day! :D

A molecule is made up of more than one element ?

Answers

Answer:

Yes it is

Explanation:

How else do you think nitrogen or oxygen is made?

Help me out with this question , can someone give me the answer ?
:((

Answers

Answer:

I pretty usre they cause erosion wich makes fresh soil so B.

Explanation:

aluminum can be used to make soft drink cans because of which property?
A. It can be hammered into a thin sheet (malleability)
B.it can reflect light (shininess)
C.It can be drawn into long wires(ductility)

Answers

Answer:

A

Explanation:

Malleability describes the property of a metal's ability to be distorted below compression. It is a physical property of metals by which they can be hammered, shaped and rolled into a very thin sheet without rupturing. A soda can's walls are very thin, and therefore express the malleability of aluminum.

Which of the following animals is not a first-order prairie consumer? help fast

hawk
gopher
deer
squirrel

Answers

Answer:

The answer would be the hawk.

Explanation:

First-order consumers directly depends on grass or plants for survival.

A hawk gets its food from eating animals.

Again, hope this helps :D

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What is sustainability? How can we make sustainable development a reality? How sustainability can be measured? the term ""buccaneer"" originated from what activity? A local government began the year with a portfolio of securities with an historical cost of $1,200 and a fair value of $1,240. During the year the government acquired an additional security at a cost of $260 and sold for $200 a security that had an historical cost of $172 and a fair value at the beginning of the year of $190. At the end of the year, the securities portfolio had a fair value of $1,330. The amount that should be recognized on the financial statements for the year as investment income is:________ 1. Anthony and his sister, Ciara, are saving their money to buy $240 MP3 players. They each plan to buy their own player.Anthony starts off with $50 in his bank account and adds $20 each week. Ciara starts off with $10 in her bank account andadds $30 each week. Complete each of the tables below based on the information given. The first table has been started foryou.AnthonyCiaraWeek (x)ProcessTotal dollars(y)Week (x)ProcessTotal dollars(y)050 + 20.0500150 + 20 170122333445580081010 Please Help!The Phoenicians developed a(n) ________________. HELP! rewrite the equation in standard form y = - 3/4 x - 6 30 points please answer (Must show work) Screenshot attached!!! 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. NO LINKS!!!Find the coordinates of point on the directed segment from (1,6) to (-2,-3) that divides it into a ratio of 5:1.a. (-1.5,-1.5)b. (1.5, 1.5)c. (-1,-1)d. (-2.5, -3.5) Which of the following represents the equation of a line that is parallel to 2y-x=16 and passes through thepoint (-6, 1)? who did ford want to market his automobile to? Robert is making a scale model of his boat. The boat is 25 feet long. The scale he is uisng us 1 inch = 5 feet. How long is the scale? Which of the following rights are protect by the Ninth Amendment? Occurs between a metal atom and a nonmetal atom.Options:Ionic Bond or Covalent Bond? this is due today please heeeelp!!! Someone plz help me :( how does conflict theory respond to issues left unattended by functionalism? aConvert 0.58 intopercentage Which situation is the best example of irony?A. A chef needs a spatula but can't find one anywhere.B. The president has 10 minutes to make a big decision.C. A former movie star is forced to accept only bit parts.D. The only character who feels sympathy is a robot.answer: D HELP ME PLEASE WITH THIS FRENCH.