Calculate the mass of 0.257 moles of calcium nitrate, Ca(NO3)2. * A.)6.39x10^2 grams
B.)42.2 grams
C.)42.1737
D.)2.57x10^-1grams
E.)1.57x10^-3grams

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

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

How does climate change cause the ocean's thermohaline current to slow down?