Question

Ba2+
(CO2)2-
Step 3. Criss-cross the valency numbers.
Ba2+
Ba, (CO.
Therefore, the formula of barium carbonate is
CO?
3​

Answer 1

Answer:

BaCo3

Step-by-step explanation:

Needs to focus on the charges..

Answer 2

Answer:

BaCO3

Step-by-step explanation:

Properties

Chemical formula

BaCO3Molar mass197.34 g/molAppearancewhite crystalsOdorodorlessDensity4.286 g/cm3Melting point811 °C (1,492 °F; 1,084 K)

polymorphic transformationBoiling point1,450 °C (2,640 °F; 1,720 K)

decomposes[1] from 1360 °C

Solubility in water

16 mg/L (8.8°C)

22 mg/L (18 °C)

24 mg/L (20 °C)

24 mg/L (24.2 °C)[1]

Solubility product (Ksp)

2.58·10−9Solubilitydecomposes in acid

insoluble in methanol

Magnetic susceptibility (χ)

-58.9·10−6 cm3/mol

Refractive index (nD)

1.676