Answer:
8 atoms of oxygen.
Explanation:
Given parameter:
Mass of magnesium phosphate = 15g
Unknown:
Number of oxygen atoms = ?
Solution:
The formula of the compound is;
Mg₃(PO₄)₂;
Number of atoms oxygen = 2(4) = 8 atoms of oxygen.
Answer:
It's the first option. A distance between two similar points on a wave of light.
Explanation:
On a wavelength chart, where you measure the rate at which the light travels at its distance from the source. You have two points to compare to.
soluble substances dissolves in solvents
Answer:
Anywhere there is moist soil and dead plant material,rainy forest areas, on land and in freshwater
Explanation:
If I understand the question correctly, I think the answer is true. My reasoning is that each formula for the molecules used in a reaction are set and can't be modified to make it easier to balance or else the reaction would change fundamentally.
an example of this is H₂+1/2O₂⇒H₂O. You can't change the H₂O to H₂O₂ to make the reaction cleaner. Water and hydrogen peroxide are two different chemicals and therefore can't be interchanged with out changing the fundamental qualities of the reaction