Question

what is the formula for calcium chlorate?
cacl₂
caclo₂
caclo₃
ca(clo₃)₂
question 35 (0.0862 points)
the melting point is the temperature where a solid becomes liquid. the melting point of acetone is -95°c. what state of matter would you expect to exist for actone at -96°c?
solid
liquid
gas
not enough information

Explanation:

First Question (Formula for Calcium Chlorate)

Step1: Determine Ions

Calcium ion is \( \text{Ca}^{2+} \), chlorate ion is \( \text{ClO}_3^- \).

Step2: Balance Charges

To balance \( +2 \) (Ca) and \( -1 \) (ClO₃⁻), we need 2 chlorate ions. So formula is \( \text{Ca(ClO}_3\text{)}_2 \).

Step1: Compare Temperature

Melting point of acetone is -95°C. -96°C is below melting point.

Step2: Determine State

Below melting point, substance is solid (since melting is solid→liquid; below that, solid).

Answer:

D. \( \text{Ca(ClO}_3\text{)}_2 \)

Second Question (State of Acetone at -96°C)