Assume prices increase from $15 to $18, yet quantity remains at 25. What is the total revenue?

A: $450

B: $240

C: $625

How many grams of na3po4 will be needed to produce 650. mL of a solution that has a concentration of na + ions of 1.40 M

Calcium chloride contains only calcium and chloride. What is the formula for this compound?

Ammonia, NH3, is widely used as a fertilizer and as an ingredient in many household cleaners. How many moles of ammonia are produced when 6 mol of hydrogen gas reacts with an excess of nitrogen gas?

20. If you add the same amount of heat to a kilogram of water and a kilogram of gold, would they both be the same temperature? If not, which would be higher? Why? Assume that both start out at the same temperature.

1. How would you explain that energy in animals' food was once energy

What fraction of carbon 14 remains in an animal frozen in a glacier 18000 years ago?

How do you convert the number of molecules of a substance to the number of moles? a. add Avogardo's number b. subtract Avogardo's number c. multiply Avogardo's number d. devide Avogardo's number

Give 3-5 pieces of evidence to support why cloning is bad.

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of oxygen and 1 g of nitrogen.

The modern periodic table reflects many improvements to Mendeleev's original table. If Mendeleev's table was incorrect, why is it still studied in chemistry classrooms today?