Gas x would be carbon dioxide.

note/ acid + carbonate —> salt + water + carbon dioxide

the white precipitate would be calcium carbonate. CaCo₃

note/ this is a common eqn u need to remember.

X - CO₂ (carbón dioxide)
Y - CaCo₃ (calcium carbonate)

sodium carbonate is a basic salt

7 0

3 years ago

The chemical analysis of a compound gave the percentage composition by mass: Carbon 40%, Hydrogen 6.67% and Oxygen 53.3%. The re

cricket20 [7]

Answer:

C6H12O6

Explanation:

I attached the method for solving above.

6 0

3 years ago

How many moles are in 395 grams of KMnO4 if the molar mass is 158 g/mole? please help me

Gala2k [10]

Answer:

I have no idea

Explanation:

I don’t know

8 0

3 years ago

Which of the following statements concerning the density of a gas is true?

Naya [18.7K]

Answer:

can u give us the options

5 0

3 years ago