Based on their chemical formulas, which of these common substances is an

element?

A. Bleach (NaClo)

B. Silver (Ag)

C. Quartz (SIO2)

D. Marble (CaCO3)

How are chemical bonds formed?

Balance the following chemical equation using the smallest set of integers. I₂ + Cl₂ + H₂O - --> HIO₂ + HCl The coefficient on H₂O is: A. 1 B. 2 C. 5 D. 6

How many electrons does (Al) have to give up to achieve a noble gas?

What does the color and smooth texture of this reveal about its formation? It cools rapidly and contains dark minerals. o It cools slowly and contains dark minerals. O It cools rapidly and contains light minerals.

Two objects that take up the same amount of space must have the same-

2H2S (g) 2H2 (g) + S2 (g) Kc = 1.67 * 10 ^-7 at 800 C A 0.500 L reaction vessel initially contains 0.0125 mol of H2S at 800 C. Find the equilibrium concentrations of H2 and S2.

An atom has an atomic number of 9 a mass number of 19 and an electron configuration of 2-6-1 explain why the number of electrons in the second and third shells shows that this is in an excited state

How can a chemical reaction be sped up? Pack in more of the reactant to increase the_.

How does a mixture of benzoic acid and benzaldehyde can be isolated separately by extractions?

What is a compound? a) a combination of two or more substances that are not chemically combined b) a combination of two or more elements that are combined in a certain ratio