Which term refers to the speed at which reactants are converted into products?

A) reaction rate

B) activation energy

C) meta stable state

D) spontaneous reaction

Which statement about the United Nations is an opinion rather than a fact? (1) The United Nations is a successful peacekeeping organization. (2) The United Nations is supported by contributions of member nations.

Match what is seen through a telescope with the information that is learned from it.

Predict the color of the flame for the compound sodium hydroxide, naoh. explain your reasoning.

Which of the following is a compound? A Ne B N2 C NaCI D O2

Can an atomic model ever be perfect?

How many molecules are there in 79g of Fe2O3?

Which of the following elements is an alkall metal?

A student mixes 0.50 L of 0.0020 M Ba (NO3) 2 solution with 0.50 L of 0.0080 M Na2SO4 solution. Which equation shows the proper set-up to calculate molar concentration of Ba2 + ions in the new solution? (0.0020 M) (1 L) = (? M) (0.0020 M) (0.

A silver block, initially at 58.5°C, is submerged into 100.0 of water at 24.8°C in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 26.2 °C. What is the mass of the silver block?

If joey ran 28 meters in 4 seconds, then his velocity was m/s