Which of these is a compound?

A. salad

B. carbon dioxide

C. potassium

D. salt water

The central core of an atom is called the

A flask contains oxygen, carbon dioxide, and nitrogen gases. The partial pressures of each are 11.4 atm, 5.6 atm, and 8.7 atm, respectively. What is the total pressure in the flask in atm?

Oxygen (O) will have chemical properties most like: sulfur (S). nitrogen (N). hydrogen (H). fluorine (F).

Experimental data have shown that the rate law for the reaction 2 hgcl2 (aq) + c2o4 2 - (aq) → 2 cl - (aq) + 2 co2 (g) + hg2cl2 (s) is: rate =

How many CO2 molecules are present in 12.47 L CO2

On earth, the weight of an object changes. TrueFalse

The primary anthropogenic source of atmospheric carbon dioxide (co2) is

Tin (II) fluoride (SnF2) is often added to toothpaste as an ingredient to prevent tooth decay. What is the mass of F in grams in 33.7 g of the compound?

On a separate sheet of paper, write the formulas for each of the following, complete and balance 1. iron + copper (II) sulfate 2. potassium chloride + mercury (I) sulfate 3. sulfur + oxygen

What is the empirical formula of a compound that has three times as many hydrogen atoms as carbon atoms, but only half as many oxygen atoms as carbon atoms atoms?