A base may be defined as a 1) substance that accepts protons 2) substance that forms hydronium ions 3) substance that loses protons when dissolved in water

Which statement best applies collision theory to preventing a dangerous reaction from occurring? Store the reactants together at a low pressure. Keep all sparks or flames away from the reactants. Store the reactants together at a low temperature.

Which action represents an increase in entropy? someone arranging a deck of cards in order from aces (low) to kings (high) green food coloring diffusing through cookie dough one end of a rod of steel getting warmer while the other end gets cooler

The first four ionization energies for element X (not in kJ/mol) are 170, 350, 1800, 2500. The first four ionization energies for element Y are 200, 400, 3500, 5000. Identify elements X and Y. (There may be more than one correct answer)

There are three times of muscles

If there are 2 grams of product produced by the chemical reaction, how many grams of reactant were consumed? A) 0 grams B) 1 gram C) 2 grams D) 4 grams

The function of the root cortex is to: a. Provide stiffness to the plant b. Make plant food c. Store food and water d. Transport water and minerals

The quantitative differences in biological activity between the two enantiomers of a compound are sometimes quite large.

Which of these properties, used alone, would be LEAST useful in identifying MOST minerals? A. color B. luster C. streak D. density

Which phases describe air density?

Why is water typically used as the heat-absorbing liquid in calorimetry?