The pressure exerted by a gas in a container depends on A. the space between the molecules B. the instrument used to measure the pressure C. the number of collisions between gas molecules and other gas molecules D. the number of collisions between gas molecules and the walls of the container.

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum