Answer:
A. True
Explanation:
The octane number is determined by comparing the characteristics of gasoline to isooctane (2,2,4-trimethylpentane) and heptane. The correct option is option A.
Basically, the higher the octane number, the greater the resistance of the gasoline to knocking.
The chemical equation that correctly represents the synthesis of calcium sulfite is
CaO(s) + SO₂(g) → CaSO₃(s)
<u><em>Explanation</em></u>
<u><em> </em></u>Synthesis reaction is type of chemical reaction in which two or more simple substance combine to form a more complex product.
The reaction above is therefore a synthesis reaction since CaO and So₂ combine to form CaCO₃ ( a complex product)
Joseph Kennedy
Glenn T. Seaborg
Edwin Mattison McMillan
Arthur Wahl<span /><span /><span />
Answer:
38.32 mL is minimal volume of hot water that is needed to dissolve 2.1 g of pure acetanilide.
Explanation:
Mass of acetanilide to be dissolved in hot water = 2.1 g
Mass of hot water to be used = m
Solubility of acetanilide = 55 g/L
This means that 55 grams of acetanilide dissolves in 1 L of hot water.
Then 1 grams of acetanilide will dissolve in :
0.0382 L = 0.0382 × 1000 mL =38.2 mL
1 L = 1000 mL
38.32 mL is minimal volume of hot water that is needed to dissolve 2.1 g of pure acetanilide.
Answer:
Explanation:
Its chemical energy to Chemical energy because carbon is a chemical in science sorry if its incorrect.
