Mixing a cocktail is it a physical or chemical change

Which examples represent abiotic factors affecting biotic factors? Check all that apply.

What mass of ammonium thiocyanate must be used if it is to react completely with 6.5 g barium hydroxide octahydrate?

What would happen if rivers could not be dammed

1. synthesis of repeating molecules carbohydrate 2. decomposition using water polymerization 3. two or more simpler molecules strung together lipid 4. a group of organic compounds including fats and steroids polymer 5.

Which of these is NOT a function of the skin? to protect the body against outside invaders to keep the body at a constant temperature to release chemicals that control blood sugar to allow the body to feel when something is touching it

Explain why a piece of aluminum or magnesium can be used to remove tarnish, which is mostly silver sulfide, on silverware.

Why is it important for an engineer who is designing a new home-cooling/heating system to have knowledge about the transfer of heat?

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g) Also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the

What is the name of the outermost layer that forms a boundary around the outside of each cell

Intact cells of two unknown cell types were placed into solutions with different concentrations of NaCl. Type I cells swelled and burst in the solution with the lowest concentration of NaCl.