A nail is attracted to a magnet. What does this tell you about the nail?

O

A. It is harder than the magnet.

O

B. It is a poor thermal conductor.

O

C. It contains iron.

O

D. It is a good electrical conductor.

An unknown diatomic gas has a density of 3.164 g/l at stp. What is the identity of the gas?

How many moles of P are there in 76.0 mol of P4O10?

Consider this reaction: 2SO2 (g) + O2 (g) 2SO3 (g) + heat. What will happen if more sulfur trioxide gas is added to the reaction mixture? A-The equilibrium will shift toward the products. B-The equilibrium will shift toward the reactants.

Compounds can be broken down by using what method?

Using a molar heat of combustion of - 890 kJ/mol, The minimum mass of methane that must be burned to warm 5.64 kg of water from 21.5°C to 77.4°C, assuming no heat losses to the environment is ab. c g. Put your answer for ab. c in the blank.

What type of reaction takes place when atoms or molecules rearrange to form new substances?

If you pump air into cycle tyre a slight warming effect is noticed at valve stem why

Butter is melted in a pan. Which of the following is true about the change? A. It is a physical change that releases energy B. It is a chemical change that absorbs energy C. It is a physiscal change that absorbs energy D.

Describe how secondary consumer is dependent on the sun for its energy

What % of the ideal soil is air?