Matter is niether created nor destroyed in any chemical change. Is this a theory or a law?

A buffer is made up of 0.300 L of each of 0.500 M KH2PO4 and 0.317 M K2HPO4. Assuming that volumes are additive, (a.) calculate the pH of the buffer after the addition of 0.0500 mol of HCl to 0.600 L of buffer and (b.

One of the following is not a factor which affect rates of reaction: a. Surface Area b. Temperature c. Concentration d. Pressure

The creation of carbon monoxide

In a concept map of the atom, which term would appear closer to the top of the map: mass number neutrons

How many grams of mercury are needed to react completely with 157g of sulfur to form hgs?

Glucose dissolves in water but doesn't produce ions during dissolution process. Two (positive and negative) electrodes that were hooked up to a light bulb and external source of power were placed in an aqueous solution of glucose.

What is the structural difference between atp and datp?

What was henri becquerel studying when he accidentally discovered radioactivity?

A substance which is made up of identical atoms is a (n): chemical element compound alloy

Which answer choice correctly explains how the structure of ionic compounds differs from covalent compounds? Ionic compounds are made of a network of ions while covalent compounds are made of a network of molecules.