Answer:
What ingredients do you already have?
Explanation:
Answer:
Density (ρ) = 6820 kilogram/cubic meter
Explanation:
ρ = m/v
10.23 gram
1.5 milliliter
= 6.82 gram/milliliter
= 6820 kilogram/cubic meter
Calcium Chloride's chemical formula is CaCl2.
Answer:
Explanation:
We need to use the formula for heat of vaporization.
Identify the variables.
- The heat absorbed by the evaporating water is the <u>latent heat of vaporization. </u>For water, that is 2260 Joules per gram.
- Q is the energy, in this problem, 50,000 Joules.
- m is the mass, which is unknown.
Substitute the values into the formula.
We want to find the mass. We must isolate the variable, m.
m is being multiplied by 2260 J/g. The inverse operation of multiplication is division. Divide both sides by 2260 J/g.
Divide. Note that the Joules (J) will cancel each other out.
Round to the nearest whole number. The 1 in the tenth place tells us to leave the number as is.
The mass is about 22 grams, so choice B is correct.