If you have 30 atoms of potassium how many atoms of F would need to go with it for all of the atoms of potassium to compound.

When a substance cannot be reduced by physical or chemical means to a simpler form, it is an example of a (n): mixture molecule element compound

20. Tell one thing that is true about these balanced chemical equations. Explain your answer. A + B → CDE. H2 + O2 → H2O2. Reactant → Product. a. They are balanced so they have more reactants than products. b.

Calculate the mass in grams of 202 atoms of iron

1234567891011 Why isn't DDT an ideal pesticide? Select all that apply. It did not work well at wiping out the insect population. Over time insects started to become resistant to DDT.

A balanced ball on a basketball hoop is potential energy or kinectic energy?

If a sample of gas has a volume of 5.00 L @ 92.3 C, what will the volume of the gas be if the temperature is lowered to - 37 C

On melting of ice, there is a decrease in volume instead of increase. Why?

When a dolphin jumps, it moves its muscles and chemical potential energy is converted to kinetic energy. Some of this energy is lost to the dolphin. Explain why this phenomenon does not violate the Law of Conservation of Energy.

If a bat with a mass of 5 kg and acceleration of 2 m/s2 hits a ball whose mass is 0.5 kg in the forward direction, what is the reaction force of the ball on the bat? A) 0 N, forward B) 10 N, forward C) 10 N, backward D) 0.5 N, upward

Which statement best explains why heating a liquid affects its viscosity?