A mixture of gases contains 1. 50 mol of o2, 0. 75 mol of he, and 2. 25 mol of n2. The total pressure exerted by the mixture is equal to 2. 50 atm. What is the partial pressure of the he?.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

2b2t

explanation:

2b2t