A stable atom of sodium contains 11 protons, 11 electrons, and 12 neutrons. Which is the composition of an ion of sodium? A. 10 protons, 11 electrons, 12 neutrons
B. 11 protons, 11 electrons, 13 neutrons
C. 11 protons, 10 electrons, 12 neutrons
D. 12 protons, 11 electrons, 12 neutrons

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

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

What substance has a mass of 9.5g and volume of 2.1cm^3