Answer:
The answer is D. It changes the final products of the reaction. .
Explanation:
- <u>. Catalyst is a substance that increases the rate of a reaction without itself being consumed.</u>
Answer:
a. The skull could support as much as 3 tons of weight.
Explanation:
The true statement about brain is
a. The skull could support as much as 3 tons of weight.
The cranium(skull) bones are slot like a jigsaw puzzle together. All but one of these bones is fixed in place in adults. It makes the skull very solid. Babies have holes between the cranial (skull) bones so that as they are born, their heads may withstand being crushed.
rest all statements are wrong.
the balanced equation is:
CH4 +2O2 -> CO2+2H2O
<h2>
Answer:</h2>
- Cu(s) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2Ag(s).
<u>Moles Cu present</u> = 100g Cu x 1 mol Cu/63.55g
= 1.574moles Cu
<u>Mass of Ag produced</u> = 1.574mol Cu x 2mol Ag / 1mol Cu x 107.9g Ag/mol Ag
= 340.g Ag
Volume in liters of Carbon dioxide : 0.672
<h3>Further explanation</h3>
Reaction(combustion of butane-C₄H₁₀)
2C₄H₁₀+13O₂⇒8CO₂+10H₂O
mol butane (MW=58,12 g/mol) :
mol CO₂ : mol C₄H₁₀ = 8 : 4, so mol CO₂ :
At STP, 1 mol = 22.4 L, so volume CO₂ :
