Answer : In the reaction of Ca + $F _{2}$ --->Ca $F _{2}$ , the coefficient of Ca and $F _{2}$ will be the same which will be 1.

Explanation : As per the rules of writing a chemical equation and balancing it properly, the number of elements in reactants side should be equal to the number of elements generated in product side. Hence when we use 1 molecule of Ca and one molecule of $F _{2}$ then it generates 1 molecule of Ca $F _{2}$ .

6 0

4 years ago

How many moles of HCl are present in 0.70 L of a 0.33 M HCl solution?

tester [92]

Answer:

0.23 mol

Explanation:

3 0

3 years ago

Where is most of the water on earth found? What percentage?

bezimeni [28]

Answer:

The ocean holds about 97 percent of the Earth's water; the remaining three percent is found in glaciers and ice, below the ground, in rivers and lakes. Of the world's total water supply of about 332 million cubic miles of water, about 97 percent is found in the ocean.

wait..if you asking about the country it's Brazil✌️

8 0

3 years ago

Pls answer asap! NO ATTACHMENTS!!!

Lisa [10]

Iconic compounds are electrolytes because they dissociate into ions when dissolved in water. Many molecules compounds are noneelectrolytes

7 0

3 years ago