How many molecules are there in 65 g of silver nitrate (AgNO3) ?

A.

3.82 * 1023

B.

2.3046 * 1023

C.

2.3046 * 1024

D.

3.82 * 1024

E.

2.3046 * 1012

A chemistry teacher has a 560-cm length of magnesium ribbon. For a class experiment, each student requires an 8.5-cm length of the ribbon. How many students may receive the required length?

Two containers are bought in thermal contact. Container 1 held a liquid with specific heat 4.03 kJ/kg K at a temperature of 306 K. Container 2 held another liquid with specific heat 3.51 kJ/kg K at a temperature of 173 K.

DDT is currently banned worldwide. a. True b. False

Antimycin A blocks electron transfer between cytochromes b and c1. If intact mitochondria were incubated with antimycin A, excess NADH, and an adequate supply of O2, which of the following would be found in the oxidized state?

A hydrocarbon with this formula c5h10: has a triple paired c-c bond has a double paired c-c bond is essentially inert is unstable and extremely reactive

What type of acid is sulfuric acid? a - Monoprotic b - Diprotic c - Triprotic d - None of the above

Sunlight produces a spectrum of colors that includes what?

Which of the following is not a common use of gypsum? a. wallboard/drywall for homes b. a primary ingredient for toothpaste c. surgical splints and casts d. pH reducing agent for acidic soils

In which of the following are the symbol and name for the ion given correctly A. NH4+: ammonia; H+: hydride B. C2H3O2-: acetate; C2O4-: oxalite C. OH-: hydroxide; O2-: oxide D. PO3 3-: phosphate; PO4 3-: phosphite

If you add a large piece of zinc to a beaker of acid and, in a separate beaker, zinc shavings to a beaker of acid (of equal concentration/volume), the sample with the zinc shavings will react faster than the sample with the large piece.