Which of the following groups contains mostly radioactive elements?

Question 5 options:

nonmetals

alkaline earth metals

halogens

inner transition metals

Which of these statements are not true about a chemical reaction rate? A) Temperature does not affect the reaction rate. B) Temperature can decrease the reaction rate. C) The amount of reactants can increase the reaction rates.

One benefit of nuclear fission reactions is 1. nuclear reactor meltdowns 2. storage of waste materials 3. biological exposure 4. production of energy

At what pressure would 14.4 grams of oxygen gas occupy 7.5 liters at a temperature of 375 K?

Do the water molecules absorb or release energy during the change from a gas to a liquid?

How many moles of hydrogen are in 1.1 mol of quinine?

What do chemists use to describe a chemical reaction

When you drop a sugar cube in a glass of water, at first the water doesn't taste sweet. Later, it tastes very sweet. Eventually, the water will taste equally sweet throughout. What term explains molecule movement to maintain a balance?

Using density what is the mass in grams of 150mL of a liquid with a density of 1.4 g/mL

All of the following can be recycled except clothing aluminum cans compact fluorescent bulbs plastic drink bottles

Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.0 L of water upon warming from 25 ∘C to 50 ∘C.