When must scientist conduct controlled experiments?

What is the significance of wanting to know what the pH of a solution is?

If 3.5 liters of gas in a container holds a volume of 50 liters at a temperature of 400k what is the pressure inside the container in stm

How many protons does nitrogen have

What are some of the most common "chemicals" you use around your home on a daily basis? And what do you use those chemicals for?

Which of the following statements about the use of nuclear energy is true? a. Nuclear energy cannot be used safely. b. Nuclear fusion has no known useful applications. c.

Reaction rate lab report

The absence of which cell structure would indicate a cell is prokaryotic?

When 0.880 g of an organic compound containing carbon, hydrogen and oxygen is burned completely in oxygen, 1.760 g of co2 and 0.720 g h2 o are produced. what is the empirical formula of the compound?

In ammonium chloride salt (nh4cl) the anion is a single chloride ion, cl. what is the cation of nh4cl

What does copper II sulfate do to the enzyme activity?