Which of the following is NOT evidence that a chemical reaction has

occurred?

Bob puts 200 grams of ice into a pitcher with 900 grams of water. He gets distracted and comes back later to find that the ice has melted in the water. How many grams of water does Bob now have in the pitcher? h 90 groe ne the love town

Which type of rock forms as a result of cooling and crystallization? a) clastic b) metamorphic c) sedimentary d) igneous

What is the meaning of pseudopod? A. true foot B. true hand C. false foot D. false hand

How much pressure is required to compress 1L volume of air at 1atm pressure to 0.5L

Complete the name of an alkali that could react with phosphoric acid to make sodium hydrogen phosphate

If you drink at 2am can you pass a drug test at 6pm

What do we call a substance that can act as both an acid and a base?

Calculate the solubility (in g/l) of silver chromate in water at 25°c if the ksp for ag2cro4 is 1.1 * 10-12. 2.7 * 10-2 g/l 2.2 * 10-2 g/l 3.4 * 10-2 g/l 3.5 * 10-4 g/l

Which equations represent precipitation reactions? More than one can be chosen. A. Na2S + FeBr2 → 2NaBr + FeS B. MgSO4 + CaCl2 → MgCl2 + CaSO4 C. LiOH + NH4I → LiI + NH4OH D. 2NaCl + K2S → Na2S + 2KCl E. AgNO3 + NaCl → AgCl + NaNO3

The amount of massin a given volume of air is