What two conditions meat be met in order for a collision to be effective

Aside from carbon and hydrogen, which are always present in organic molecules, what are some other substances they may contain?

Which balanced equation represents a spontaneous radioactive decay? 1. 14C + Ca3 (PO4) 2 → 3CaC2 + 2P + 8CO 2. 3. H2CO3 → H2O + CO2 4.

What number is considered neutral? (On the pH scale)

What would you expect to happen to the air pressure as a storm approaches? Question 7 options: A. It would increase B. It would decrease C. It would remain the same

What term best describes the rate of radioactive decay for a particular radioactive element? A. fast B. slow C. variable D. constant

The ideal gas law shows us how a gas will behave under many conditions. The formula is: P V = n R T Where P = pressure, V = volume, n = amount of the substance, R = ideal gas constant, and T = temperature.

The Suns ultraviolent Rays can cause skin damage including sunburn and even skin

Peas contain 250 kJ per 100 g. You would use the equivalent of 600 g of peas if you slept for.

A sample of gas in a balloon has an initial temperature of 21 ∘C and a volume of 1310 L. If the temperature changes to 70 ∘C, and there is no change of pressure or amount of gas, what is the new volume, V2, of the gas?

Which is a waste product of aerobic respiration? A. water B. energy C. oxygen D. glucose