In terms of energy, how would you classify the following chemical reaction? . 2cu + o2 2cuo + 315 kj. a] endothermic. b] exothermic. c] both endothermic and exothermic. d] neither endothermic nor exothermic

The pressure in a fluid is affected by which characteristics of that fluid

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true