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valentinak56 [21]
3 years ago
7

ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST

Chemistry
1 answer:
QveST [7]3 years ago
6 0
Average atomic mass = .374 ( 184.953 amu ) + .626 ( 186.958 amu ) =
186.207 amu
Hope this helps x
would love to have brainliest if it is right! :)
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Give three examples of environmental, industrial and bio-chemistry.
JulsSmile [24]

Three examples of environmental, industrial and bio-chemistry are listed below:

  • Environmental chemistry: Contamination, Atmospheric Deposition, and Soil Pollution.
  • industrial chemistry:  industrial inorganic chemicals, industrial organic chemicals, and agricultural chemicals
  • bio-chemistry: genetic, immunology, and enzymology

<h3>Meaning of Chemistry</h3>

Chemistry can be defined as a branch of science which is concerned with the substances matter is composed of, their properties and reactions,

Chemistry also deals with the use of such reactions to form new substances.

In conclusion, Three examples of environmental, industrial and bio-chemistry are listed anove

Learn more about chemistry: brainly.com/question/24419453

#SPJ1

4 0
2 years ago
Water is a pure substance. Which of the following is true about water?
Nastasia [14]

Answer:

A chemical change is required to separate the elements present in it.

Explanation:

The only true statement from the choices given is that water as a pure substance requires a chemical change to separate the elements present in it.

Water is a molecule consist of two atoms of hydrogen and one atom of oxygen.

  • The atoms are covalently bonded together.
  • A chemical process, the electrolysis of water is often used to separate the atoms of a water.
  • Physical changes cannot be used to separate the atoms of water.
  • Water is a compound which consists of two elements.

Therefore, we see that only the first choice satisfies this problem.

8 0
3 years ago
Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxi
nekit [7.7K]

Answer:

D. [NO₂]²/[N₂O₄]

Explanation:

The equilibrium constant expression for a reaction is products over reactants. Since NO₂ has a coefficient of 2, it will become an exponent.

So, it would be:

[NO₂]²/[N₂O₄]

Hope that helps.

3 0
3 years ago
A wooden block has a volume of 176 cm with a power of 3 and a density of 18.2 g/cm with the power of 3. What is the mass?​
galina1969 [7]

Answer:

3203.2 g

Explanation:

Since, Density=Mass/Volume

So,Mass =Density * Volume

= 176 * 18.2

= 3203.2 g

6 0
4 years ago
A student the mass of 8 cm3 block of brown sugar to be 12.9 g. What is the density of the brown sugar
antoniya [11.8K]
12,9 g of sugar-----------------8cm3
x g of sugar ------------------- 1cm3
<u>x = 1,613g/cm3 <<< density</u>
8 0
4 years ago
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