Use the mass and volume data to calculate the density of mercury to the nearest tenth. Mass of mercury = 57 g Volume of mercury = 4.2 mL

The red color in the ore hematite is caused by the presence of what metal? A. iron B. sulfate C. copper D. aluminum

How many grams of barium sulfate, baso4, are produced if 25.34 ml of 0.113 m bacl2 completely react given the reaction: bacl2 + na2so4 → baso4 + 2 nacl?

Nonferrous alloys do not contain a. copper. b. brass. c. gold. d. iron.

How many atoms of oxygen are in 2.50 moles of co2? is it 1.93 x10^23?

Select the correct answer. Why does every chemical reaction require a certain amount of activation energy? O A Energy is released when the reactants begin to react. O B. Energy lost to the environment during the reaction must be replaced.

What group of elements has the most stable arrangement in their outer energy level?

Which of the follwing is a pure substance: sugar, salt, water, or pepper? Explain how you know.

A chemistry student needs of isopropenylbenzene for an experiment. She has available of a w/w solution of isopropenylbenzene in carbon tetrachloride. Calculate the mass of solution the student should use.

Can an organism carry out cellular respiration without photosynthesis?

Predict the product for PtCl4 + F2