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Ymorist [56]
3 years ago
7

What is water (H2O)? Select all that apply * an element a molecule 1 hydrogen and 2 oxygen 2 hydrogen and 1 oxygen

Chemistry
1 answer:
Novay_Z [31]3 years ago
5 0

Answer:

2 hydrogen and 1 oxygen

Explanation:

H2O

Hydrogen has the coefficient so you multiply 1 by 2 and it equals 2

Oxygen does not have any sub or coe so its automatically 1

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Explain how lines latitude and longitude help people find locations on earth.
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Latitude and longitude are the x and y axis on a grid. When you're trying to find a location on earth, you need to graph it, so you can pinpoint the location. There is no grid if there is no longitude and/or latitude lines. Without one of the lines, it would be very hard to graph, which will be difficult in finding locations on earth. But hey, I'm not too sure. I recommend looking at other people's answers too and searching it up.
 
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3 years ago
A beaker contains 249 mL of a 6.54 M HCl(aq) solution. Determine the new concentration of the solution after it is diluted by ad
drek231 [11]

Answer:

The new molarity is 0.614 M

Explanation:

Formula for dilutions is:

M concentrated . Volume of conc = Volume of dil . M diluted

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(249mL + 167 mL)

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3 years ago
How can I find the answer for this ?
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The metal zirconium becomes superconducting at temperatures below 3.4000K.
dybincka [34]

Answer:

-269.75 degrees Celsius

Explanation:

7 0
3 years ago
Involves combining of nuclei:
bogdanovich [222]

Explanation:

Involves combining of nuclei:  Nuclear fusion

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Produces dangerous radioactive waste:  Nuclear fission

Nuclear fission is used in powering most nuclear power plants. The products of these reactions are radioactive in nature. They are very dangerous to human health and the environment at large.

Have high activation energies:  Nuclear fusion

The activation energy is the energy barrier that must be overcome before a reaction starts. Nuclear fusion reactions require very high amount of energy input to overcome the activation needed to start the reaction.

Releases large amounts of energy:  Nuclear reactions

Both nuclear fusion and fission releases large amount of energy.

Occurs in the stars:  Nuclear fusion

Nuclear fusion occurs in stars and they involve the combination of atomic nuclei to form larger ones.

Drives chemical plants: Nuclear fission

Chemical plants uses electricity and nuclear power plants can produce electricity through nuclear fission.

Learn more:

Nuclear reactions brainly.com/question/9566647

#learnwithBrainly

7 0
4 years ago
Read 2 more answers
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