Which of the following is smaller than the atomic radius of beryllium? a. the ionic radius of beryllium b. the atomic radius of lithium c. the ionic radius of carbon d. the atomic radius of magnesium

How many energy levels dose a tungsten atom have?

When a chemical reaction takes in energy it might feel A. Hot B. Cold C. Boiling D. Electric

When two gases of a chemical reaction are both at the same temperature and pressure and they have the same molar volume, what is their stoichiometric ratio in the chemical equation describing the reaction?

Disease causing bacteria need oxygen to survive. true or false

It takes 1 kcal to raise the temperature of 1 kg of liquid water by 1 C, but only 0.5 kcal to raise the temperature of 1 kg of ice or water vapor by 1 C.

List two potential problems with burning garbage.

Mole ratios how can the coefficients in a chemical equation be interpreted. True or False

For taking sip of hot tea, we blow air on it. Justify

The molecules in a solid object A. flow freely around each other B. vibrate slowly C. are completely still all the time

How many moles of water can be obtained from the reaction of 4 moles of O2?