Which of the following is an example of conservation of mass?

A. mass before = 3g mass after = 3g

B. mass before = 4g mass after = 3g

C. mass before = 6g mass after = 12g

If the copper (II) chloride solution splashes on your skin while you are preparing the solution, what actions should you take? check all that apply.

Most hottest month of the year

Equilateral triangle What's the answer

What is the name of a hydrocarbon that has the formula CH3 (CH2) 4CCH? A. 6-heptyne B. 1-heptene C. 1-heptyne D. 6-heptene

It is not possible for a solid substance to change directly to the gas phase true or false

Which describes the volume of 1 mol of gas at standard temperature and pressure? ER The volume is greater for a larger mass of gas. The volume is the same for any gas. The volume depends on the size of the container.

When studying historical geology, which type of rock provides the most useful evidence for uncovering what occurred? metamorphic igneous basalt igneous granite sedimentary

Calculate the molar solubility of ca (io3) 2 in each solution below. the ksp of calcium iodate is7.1 * 10-7.

At normal temperature and pressure, air has a density of 0.001184 g/mL. What is the mass of air in a room that is 3.07 m by 3.00 m by 3.77 m? Answer in units of kg.

A gas made up of atoms escapes through a pinhole 0.155 times as fast as h2 gas. write the chemical formula of the gas.