A container holds carbon dioxide, nitrogen, and hydrogen gas. What's the partial pressure of the carbon dioxide gas if the total pressure is 75psi, the pressure of nitrogen is 42 psi and the pressure of hydrogen
is 15psi?

What elements have 2 electrons inthe 4s sublevel

Iam in desperate need of with this !

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