How much excess reagent remains if 24.5 g of Cobalt Oxide (CoO) reacts with 2.58 g of Oxygen? CoO + O2 --> Co2O3 a 0.327 mol Cobalt Oxide b 0.0046 mol Cobalt Oxide c 0.0806 mol Oxygen d 0.3224 mol Cobalt Oxide

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.

Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. a. substance i is a neutral substance and substance ii is an acid. b. substance i is a neutral substance and substance ii is a base. c. substance i is an acid and substance ii is a base. d. substance i is a base and substance ii is a neutral substance.