True or false?? All atoms of the same element have the same atomic mass
2 answers:
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Gold have a greater mass
<h3>Further explanation </h3>Density is a quantity derived from the mass and volume
Density is the ratio of mass per unit volume
The unit of density can be expressed in g/cm³ or kg/m³
Density formula:
ρ = density
m = mass
v = volume
- mass of Silver :
- mass of Gold :
Answer: 878 kJ of energy is there in cheeseburger
Explanation:
Given : calorific value of fat = 38kJ/g
calorific value of carbohydrate = 17 kJ/g
calorific value of protein = 17kJ/g
1 g of fat contains energy = 38 kJ
7.0 g of fat contains energy =
1 g of carbohydrate contains energy = 17 kJ
25 g of fat contains energy =
1 g of protein contains energy = 17 kJ
11 g of protein contains energy =
Total energy = (266+425+187) kJ = 878 kJ