Is four grams of H2O more than, less than, or equal to one mole?

What is the oxidation number of N in NH4NO3

If I have 9 moles of a gas at a pressure of 8.7 atm and a volume of 18 liters, what is the temperature?

What is simple machines

This is the weighted average of all of the isotopes of an element.

Ethylene diamine tetra-acetic acid (EDTA) is a water soluble compound that readily combines with metals such as calcium, magnesium, and iron. The molecular formula for EDTA is C10N2O8H16. One EDTA molecule complexes (associates with) one metal atom.

1. Bubbling or fizzing is an indicator of a. property change b. phase change c. physical change d. chemical change

In the second step of this reaction, isocyanic acid reacts to form melamine and carbon dioxide: HNCO (l) →C3N3 (NH2) 3 (l) + CO2 (g) Balance this reaction and enter the coefficients below.

If the Kelvin temperature of a gas is tripled and the volume if doubled, the new pressure will be ___. A. 3/2 the original pressure B. 1/6 the original pressure C. 5 times the original pressure D. 2/3 the original pressure the answer isnt b or c

To squeeze gas into a smaller space

What kind of solution would have a Kb value much greater than 1? A. a weakly acidic solution B. a strongly basic solution C. A strongly acidic solution D. A weakly basic solution