Cytoplasm in a plant cell will shrink if the cell is

1. placed in a concentrated salt solution

2. kept warm and moist and in medium light

3. placed in distilled water

4. exposed to a different concentration of nitrogen gas

How many moles of lithium are present in a sample that contains 2.45x10^87 formula units of Li2SO4?

An organism had 1,000 grams of carbon-14 (a radioactive form of carbon) in it when it died. How much remains after five half-lives?

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gas mixture composition of 78.0% Nitrogen, 17.0% Oxygen, % Argon,% Carbon Dioxide. Find the mass of Nitrogen?

Which of the following is NOT a property of acids? A) Acids turn litmus paper red. B) Acids dissolve many metals. C) Acids have a sour taste. D) Acids have a slippery feel. E) All of the above are properties of acids.

What can form as a result of a chemical reaction?

A solution of orange juice that weighs 500 g contains liquid juice and solid pulp. All of the pulp is removed from the juice. The pulp is found to weigh 50 g. How much would the remaining liquid juice weigh? A. 50 g B. 250 g C. 450 g D. 500 g

Assume 3 molecules of Fe react according to the following equation. 3Fe + 4H2O Fe3O4 + 4H2 How many molecules of H2 are produced? How many water molecules are required? What is the mole ratio of Fe to H2O?

10.0 mL of a HF solution was titrated with a 0.120 N solution of KOH; 29.6 mL of KOH were required to completely neutralize the HF. Calculate the normality of the HF solution.

The number of grams present in 1.35 mol of Fe is