How many atoms are in a sample of Ca3
mass of 82.47 grams?

Which is mostly likely why many scientists reject the cold fusion theory

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

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