How many grams are in 2.3×10^-4 moles of calcium phosphate, ca3 (po3)2

Answer : The mass of calcium phosphate is, 0.0713 grams

Explanation : Given,

Moles of calcium phosphate, =

Molar mass of calcium phosphate, = 310.18 g/mole

Formula used :

Now put all the given values in this formula, we get the mass of calcium phosphate.

Therefore, the mass of calcium phosphate is, 0.0713 grams

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

personal, she chose to do it.