Answer:
I think the first option is the answer
The answer is 6 because the number of chlorine is 2 so if you have 6 moles of chlorine the answer is 6
Search it up next time♀️
First blank -Same
Second blank-Neutral
Answer:

Explanation:
Hello,
In this case, since the undergoing chemical reaction is:

The corresponding moles of carbon dioxide occupying 40.0 mL (0.0400 L) are computed by using the ideal gas equation at 273.15 K and 1.00 atm (STP) as follows:

Then, since the mole ratio between carbon dioxide and calcium carbonate is 1:1 and the molar mass of the reactant is 100 g/mol, the mass that yields such volume turns out:

Regards.