Lucas places 20 kg samples of each substance by the same heat source. All samples are at the same initial temperature. Which substance will have the greatest temperature after some period of time?

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

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