B: produces energy for the cell
It changes from a liquid from to a solid.
I hope this helps!
One chemical change would be baking the muffin.
One physical change would be chopping the fruits to add to the mixture
Answer:
<u>C) 4</u>
Explanation:
<u>The reaction</u> :
- C (s) + 2H₂ (g) ⇒ CH₄ (g)
12g 4g 16g
Hence, based on this we can say that : <u>2 moles of hydrogen gas are needed to produce 16g of methane.</u>
<u />
<u>For 32g of methane</u>
- Number of moles of H₂ = 32/16 × 2
- Number of moles of H₂ = <u>4</u>
Answer:
produced from magma
Explanation:
it is formed when the rock cools from being magma or lava