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kkurt [141]
3 years ago
7

Someone pls help me I will make you brain

Chemistry
2 answers:
mariarad [96]3 years ago
7 0

Answer:

B

Explanation:

ollegr [7]3 years ago
5 0

Answer:

B I and II

Explanation:

warming and melting.

please mark me brainliest

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What is a subcategory of a period?
Xelga [282]
The answer is epoch d.
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3 years ago
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Brass is stronger than steel<br> True or False
Ket [755]
False . Steel is stronger
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3 years ago
30 points
allochka39001 [22]

Answer:

1 mole of water (H2O)

Explanation:

Water has a chemical formula of H2O, there will be 2 moles of hydrogen in every mole of water.

In one mole of water, there will exist approximately 6.02×10^23 water molecules.

So, there will be a total of 6.02×10^23×2≈1.2⋅10^24 hydrogen atoms.

7 0
4 years ago
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Round the following numbers to the number of significant figures indicated:
Kruka [31]
  1. 3.5
  2. 9
  3. 24.7
  4. 8.01
  5. 0.006
  6. 13(1.25×1012=12.65)

Explanation:

Above we have simply looked the condition that where we put decimal point that gives your needed answer after round off.

For example:

we have to make 2 s.f from 345 so we kept decimal after 3 and we rounded off to make 3.5 from 3.45

Hope you got it

7 0
3 years ago
The following questions refer to the graph below, where sulfur trioxide is put into a sealed bottle and allowed to stand over ti
OleMash [197]

The concentration of the sulfur trioxide decreases with time due to its decomposition into sulfur dioxide and oxygen.

<h3>What is the balanced equation for the decomposition of sulfur trioxide into sulfur dioxide and oxygen?</h3>

The balanced equation for the decomposition of sulfur trioxide into sulfur dioxide and oxygen is given below as:

  • 2 SO₃ -----> 2 SO₂ + O₂

The addition of more sulfur trioxide to the bottle will result in increase in the volume of oxygen present as equilibrium will shift towards formation of products.

The addition of more sulfur dioxide to the bottle will result in decrease in the volume of oxygen present as equilibrium will shift towards formation of sulfur trioxide due to increase in product concentration.

Based on the graph, if the bottle is sealed, the concentration of sulfur trioxide will remain in dynamic equilibrium with the concentration of the products after the second day.

Based on the above information and reaction, the best way to reduce the amount of SO3 in the atmosphere, and thus reduce the amount of acid rain is to allow it to decompose before emission into the atmosphere,

Therefore, the concentration of the sulfur trioxide decreases with time due to its decomposition into sulfur dioxide and oxygen.

Learn more about sulfur trioxide decomposition at: brainly.com/question/10982712

#SPJ1

3 0
2 years ago
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