Which element sample contains more atoms, a mole of helium (He) or a mole of titanium (Ti)?
(10 Points)
A. mole of helium (He) has more atoms
A mole of titanium (Ti) has more atoms
1
A mole of helium (He) has the same number of atoms as a mole of titanium (Ti)
A mole of titanium (Ti) has more mass than a mole of helium (He).
Answers: 2
Chemistry, 21.06.2019 22:50, rndschopplein
Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas. in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point
Answers: 1
Chemistry, 22.06.2019 05:50, mrylenastewart
Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4
Answers: 1
Chemistry, 22.06.2019 13:00, aleilyg2005
If two objects at different te, peraure are in contact with each other what happens to their temperature
Answers: 1
Which element sample contains more atoms, a mole of helium (He) or a mole of titanium (Ti)?
(10 Poi...
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