Copper has two isotopes; 63Cu and 65Cu with the amount of 79.4% and 20.6%, respectively. Calculate the mass of 0.1 mol 63Cu if the average atomic mass of copper is 63.5 and atomic mass of 65Cu is 65.1 A. 3.5 g
B. 6.31 g
C. 15.3 g
D. 16.8 g
E. 20.2 g

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

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Will mark brainliest how many electrons can be held in the energy level n = 4?