What do scientists use to measure the volume of a substance

Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right

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

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.