2. The operation 12.34 + 56.78 will have a final answer calculated to the

place.

tens

ones

Correct answer 3

tenths

hundredths

Which of the following is a homogenous mixture of two or more pure substances? a) alcohol b) water c) coffee d) mercury

Which of these formulas corresponds to that of a straight-chain alkane A) C5H10 B) C6H12 C) C5H12 D) C7H14

Mixing 25.0 ml of 1.2 m hclo4 and 25.0 ml of 1.1 m naoh were mixed. the temperature of the initial solution was 22.4 o c. assuming a heat of neutralization of 55.

How is reactivity for nonmetals differnt then metals?

Different isotopes of a particular element contain the same number of

In the reaction, HCl + H2O produces H3O + Cl, what is the conjugate acid

Draw the curved arrow mechanism for the conversion of aniline into benzenediazonium ion, and draw the final product that forms after the benzenediazonium ion is treated with

Sodium chloride is stirred into water to form a solution. in this case, what are sodium chloride and the water?

What can form as a result of a chemical reaction?

A solution of orange juice that weighs 500 g contains liquid juice and solid pulp. All of the pulp is removed from the juice. The pulp is found to weigh 50 g. How much would the remaining liquid juice weigh? A. 50 g B. 250 g C. 450 g D. 500 g