How many grams are 1.20x10^24 atoms of potassium.

How would an increase in total expenditures affect the nation's economy? A. It would cause an expansion. B. It would cause stagnation. C. It would cause a recession. D. It would cause a trade surplus.

Often on a topographic map, every fifth contour line is darkened. What is this line called?

Reduction of aqueous nitrous acid hno2 to gaseous nitric oxide no in acidic aqueous solution. be sure to add physical state symbols where appropriate.

Newton's second law of motion uses the formula which states that a force will cause a mass to accelerate. (f = m • a. rewrite the formula to solve for a.

Which of the following is a major concern of nuclear energy usage in the United States? A. not enough electricity can be produced B. the cost per energy unit is too high C. disposal of the waste products continues to be a problem

An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84 neutrons. What happened to the atom?

A compound of material formed by a chemical is known as?

Which of these molecules experience london dispersion force?

What happens to the volume of most matter when it is heated?

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.