Q1: Which Part Of the following descriptions of a compound or element refers to

Question

Q1: Which Part Of the following descriptions of a compound or element refers to its physical properties and which to its chemical properties?

A. Calcium carbonate is a white solid with a density of 2.71 g/cm3. It reacts readily with an acid to produce gaseous carbon dioxide.

B. Gray powdered zinc metal reacts with purple iodine to give a white compound.

Q2: Two golfers are practicing shots around a putting green. Each golfer takes 20 shots. Golfer 1 has 7 shots within 1 meter of the hole, and the other 13 shots are scattered around the green. Golfer 2 has 17 shots that go into a small sand trap near the green and 3 just on the green near the trap. Which golfer is more precise? Which is more accurate?

Q3: Express each of the following temperatures in kelvins: (a) ?10.

Explanation / Answer

A)Calcium carbonate is a white solid with a density of 2.71 g/cm3. -this is a physical property

It reacts readily with an acid to produce gaseous carbon dioxide.-this is chemical property

B. Gray powdered zinc metal reacts with purple iodine to give a white compound. -this is chemical property

2)

3) a)-10

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