Has a liquid and solid layer

Why is the galaxy black?

Which phrase accurately describes what living organisms strive for? A. Fluctuating internal temperatures B. Continuous change within system parts C. No response to different external conditions D. Stable internal enviroment

When molecules move down their concentration gradient, they move from where they are to where they are.?

If the pOH of a solution is 9.3, what is the [OH-]

Aluminum plus chlorine yields aluminum chloride

Which heat transfer is warming your hands by the fire

Fluorine and Nitrogen react to form a covalent molecule. Which best describes the molecule they will make? There are 3 Nitrogens and 1 Fluorine. Nitrogen will be the central atom. There are 3 Fluorines and 1 Nitrogen.

Which change will decrease the number of effective collisions during a chemical reaction? adding a catalyst increasing the surface area decreasing the temperature increasing the reactant concentrations increasing the volume of the reactants

Review this chemical equation: O2 + CH4---> CO2 + H2O Which answer best explains what must be done to make this equation comply with the law of conservation of mass?

the number of significant figures: 6.32 g a:2 b:3