Which elements can react to produce a molecular compound?

(1) calcium and chlorine

(2) hydrogen and sulfur

(3) lithium and fluorine

(4) magnesium and oxygen

Which of the following statements is true of enzymes? A. they change shape after a reaction B. They don't provide an active site for substrates to bind in a reaction C. They're unusable after a reaction D.

A 0.630 m aqueous solution of kbr has a total mass of 86.0 g. what masses of solute and solvent are present?

When solutions of magnesium chloride and potassium phosphate are combined write the formula for the precipitate formed

Which compound has the smallest percent composition by mass of chlorine? a. HCL b. KCL c. LiCl d. NaCl

The molecular formula for glucose is c 6 h 12 o 6. what would be the molecular formula for a polymer made by linking ten glucose molecules together by dehydration reactions?

Reaction rate lab report

The absence of which cell structure would indicate a cell is prokaryotic?

When 0.880 g of an organic compound containing carbon, hydrogen and oxygen is burned completely in oxygen, 1.760 g of co2 and 0.720 g h2 o are produced. what is the empirical formula of the compound?

In ammonium chloride salt (nh4cl) the anion is a single chloride ion, cl. what is the cation of nh4cl

What does copper II sulfate do to the enzyme activity?