<h3><u>Answer; </u></h3>
Energy such as heat light, are examples of non matter
<h3><u>Explanation;</u></h3>
- Matter is anything that occupies space and has weight and mass. It is also tangible, and visible.
- Not everything is matter, others such as heat and light are not matter, they are non-matter, This is because they are not tangible, they lack weight, they also lack atoms or molecules, but they are form of energy.
- Therefore, energy such as heat, and light are non matters
First calculate the number of moles of CaBr2 given the
molar mass of 199.89 g/mol.
moles CaBr2 = 0.9182 g / (199.89 g / mol) = 4.60 x 10^-3
mol
We see that each CaBr2 contains only 1 mole of Ca, so the
moles of Ca is also:
moles Ca+ = 4.60 x 10^-3 mol
So the molarity of this is:
Molarity Ca+ = 4.60 x 10^-3 mol / 0.500 L
<span>Molarity Ca+ = 9.19 x 10^-3 M</span>
The answer is D because inherited is in the genes and enviornment is what happens around you
Volume = a x a x a
V = 2 cm x 3 cm x 4 cm => 24 cm³
Density = 19.3 g/cm³
Mass = ?
Therefore:
m = D x V
m = 19.3 x 24
m = 463.2 g