Which elements can be found in the sun?

a. hydrogen and oxygen

b. helium and oxygen

c. hydrogen and helium

d. hydrogen and nitrogen?

Anexample of a weak acidis OH SO. OH

Using the appropriate conversion factor from the first part, convert 0.600 mil potassium chlorate to grams.

The p K a of acetic acid is 4.76, and the p K a of trichloroacetic acid, which is used to remove warts, is 0.7. Calculate the dissociation constant of each acid. Which is the stronger acid?

How many iron atoms are there in 2.50moles of each of the following? FeWO4 = ? Atoms of Fe

Your stock dopamine is a 40 mg/ml solution (notice this is milligrams per ml, not micrograms per ml). since the dog is small, you decide to administer the dopamine in a 10 ml syringe of saline.

When is alpha particle emission most likely to occur? A. When the nucleus has more than 83 protons. B. When the ratio of neutrons to protons in the nucleus is too high to be stable. C. When the nucleus has a mass of more than 83 amu. D.

Researchers used a combustion method to analyze a compound used as an antiknock additive in gasoline. A 9.394 mg sample of the compound yielded 31.154 mg of carbon dioxide and 7.977 mg of water in the combustion.

The formula for binary ionic compound formed between cesium and fluorine

If the mass of a material is 76 grams and the volume of the material is 16 cm3, what would the density of the material be? g/cm3

Calculate the specific heat of a metallic element if 50.0 g of the metal need 314 joules of heat energy to raise the temperature from 25°C to 50°C.