3.5 grams is equivalent to how many kilograms? 3500 kg 35,000 kg 0.35 kg 0.0035 kg

Helium (He), oxygen (O), carbon (C), and selenium (Se) are all nonmetal. Using the periodic table, which pair of these nonmetal has the most similar properties

Which element would be a positive ion in a compound: Sr or Te

A black powder is added to a clear liquid. fizzing and bubbling occur, and the test tube becomes hot to the touch.

What is the overall reaction order for the following rate law: rate = K [A]2 [B] zero first second third

A mixture of helium and neon gases has a density of 0.6048 g/L at 48.7°C and 792 torr. What is the mole fraction of neon in this mixture?

Diamonds are more expensive than water because a. markets do not always reflect value. b. they have fewer uses. c. they yield higher marginal utility. d. they yield higher total utility. e. all of the above

Which of these events is caused by contact forces?

What happens when hydrochloric acid is added to pure water?

1. Water is an amphoteric substance. In any sample of water some of the moles In any sample of water some of the molecules perform acid- base reactions with each other. This is called the autoionization of water.

What state of matter is achieved if a large amount of energy is added to a gas? vapor liquid plasma solid