Answer:
are being used up faster than they are being created
Explanation:
done
Answer:
1. Animals breathe in oxygen and breathe out carbon dioxide.
2. In sunlight, plants take in carbon dioxide and release oxygen.
Hope this answer will help you.
Yo sup??
one mole of H2 reacts with half mole O2
therefore 5 moles will react with
=5*0.5
=2.5 mole
Hence the correct answer is option C
Hope this helps
Answer:
See explanation
Explanation:
Now , we have the equation of the reaction as;
2H2S(g) + 302(g)------->2SO2(g) + 2H2O(g)
This equation shows that SO2 gas is produced in the process. Let us recall that this same SO2 gas is the anhydride of H2SO4. This means that it can dissolve in water to form H2SO4
So, when SO2 dissolve in rain droplets, then H2SO4 is formed thereby lowering the pH of rain water. This is acid rain.
<h3>
Answer:</h3>
1.0177 g/cm³
<h3>
Explanation:</h3>
We are given;
- Mass of the cube = 40 grams
- Length of the cube = 3.4 units
We are required to get the density of the cube;
- Assuming the length is 3.4 cm
- The volume of the cube is given by l³
Thus, Volume of the cube = 3.4 cm × 3.4 cm × 3.4 cm
= 39.304 cm³
But, density = Mass ÷ volume
= 40 g ÷ 39.304 cm³
= 1.0177 g/cm³
Therefore, the density of the cube is 1.0177 g/cm³