2. In our bodies, carbon dioxode

O is the gas we need to take|energy from our food

O is the gas we make in our cells whenever we take energy from food

makes up 21% of the atmosphere

O is the gas we breathe in

To what pressure would you have to compress 48.0 L of oxygen gas at 99.3 kPa in order to reduce its vol- ume to 16.0 L?

What are the missing coefficients for the skeleton equation below? Na2SO4 + KOH (aq) - - > NaOH + K2SO4 (aq) Question options: 2, 12, 4, 6 4, 6, 2, 3 1, 6, 2, 3 1, 2, 2, 1

An electrical motor converts electrical energy to potential energy True or false?

All the following are signs of a chemical reaction, except A. a change in color or odor. B. a release of gas. C. a change of state. D. a change in energy.

How many isotopes does argon have?

Which of the following statements is true? A. Particles of a solid have a very orderly, three dimensional arrangement and do not move B. Particles of a liquid change shape and volume C.

How does hess's law use intermediate reactions to calculate the enthalpy of a desired reaction?

Which atomic particle dtermines the chemical behaviour of an atom?

If you could travel to the Sun and back, about how far would you travel? A. 1 AU B. 2 AU C. 5 AU D. 10 AU

A scientist is conducting a descriptive experiment where she is monitoring sea level along coastal towns in California. What is a major benefit of this experiment? The relationship shows cause and effect. It is repeatable.