I believe it’s D because phosphorus has the mass of 30.9.
Rubber.
Iron, copper, and graphite are minerals. Rubber is not a mineral.
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Answer:
<h2>18 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula

volume = final volume of water - initial volume of water
volume = 62 - 52 = 10 mL
From the question we have

We have the final answer as
<h3>18 g/mL</h3>
Hope this helps you
Answer:
2Na + 2H2O → 2NaOH + H2
Explanation:
A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products.
KI is the formula to potassium