How do you find if something will float or sink without putting it in water?

During the process of sublimation, a. a solid turns directly into a gas. b. a solid turns into a liquid. c. a gas turns directly into a solid. d. a liquid turns into a gas.

What are the observable indicators that can be evidence a chemical change might have occurred?

Calculate the mole fraction of MgCl2 in a solution created by dissolving 132.1g of MgCl2 in 175mL of water.

Using complete sentences, explain the impact the automotive industry had on industrial production and the fuel industry in america.

A gas at 72 degrees celsius occupies 10 L. Why is the temps tire in Kelvin when it expands to a volume of 22 L assuming the pressure remains constant

Match the following items. 1. balance observation using "how much". 2. graduated cylinder primary unit of mass. 3. hypothesis proposed explanation. 4. L unit of volume. 5. quantitative instrument of volume. 6. kg instrument of mass. 7.

Which is the best description of a scientific theory? a. a statement about how two different variables are related b. a collection of laws that are explained the same way c. an explanation of many observations and tested hypotheses d.

How would the electrons produced in a cathode ray tube filled with neon compare with the electrons produced in a cathode ray tube filled with chlorine gas?

Energy released from cell respiration is know as

What is a neutral atoms oxidation number