A sample of CO2 gas has a volume of 12.0 L at STP. Calculate the number of moles of CO2 in the sample.

There is no connection between the study of chemistry and physics. A. true B. false

Although Neptune is the farthest planet from the Sun, it travels in a fixed orbit around the Sun and never changes its path. What is the reason for this?

A blank cell has half the chromosomes of a blank cell

Which reaction occurs spontaneously? (1) Cl2 (g) + 2NaBr (aq) - - >Br2 (l) + 2NaCl (aq) (2) Cl2 (g) + 2NaF (aq) - - > F2 (g) + 2NaCl (aq) (3) I2 (s) + 2NaBr (aq) - - > Br2 (l) + 2NaI (aq) (4) I2 (s) + 2NaF (aq) - - > F2 (g) + 2NaI (aq)

Fatty acids may differ from one another in: a. chain length and degree of saturation b. the number of calories and in whether they contain carbon atoms c. degree of saturation and in the number of sulfur atoms d.

Examples of gravitational potential energy.

What is a safety rule while using glass beakers

if a solution is saturated, how does the rate of dissolution of a solute compare with it's rate of crystallization?

How are all sounds made?

What is a substance formed when two or more elements combine and lose their distinct properties