Chemistry, 17.02.2020 20:57 loraine4664
If a 0.710 m 0.710 m aqueous solution freezes at β 2.00 β C, β2.00 βC, what is the van't Hoff factor, i , i, of the solute?
Answers: 2
Chemistry, 21.06.2019 12:30
We just started a new lesson in chemistry and everyone hates it and i dont get it one bit. i hate school. h el p.balanced equationc3h8+5o2-> 3co2+4h2o1.) if you start with 14.8g of propane(c3h8) and 3.44g of oxygen, which is the limiting reactant -check my answer 2.)what mass of excess reagent is left over? 3.)what mass of carbon dioxide can be made? 4.)what mass of water is produced?
Answers: 2
Chemistry, 21.06.2019 22:50
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, 23.06.2019 02:30
Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the personsβs weight, in pounds, when expressed to the correct number of significant figures
Answers: 1
Chemistry, 23.06.2019 03:30
Select the correct lewis structure for fluorine which is group 7a element?
Answers: 1
If a 0.710 m 0.710 m aqueous solution freezes at β 2.00 β C, β2.00 βC, what is the van't Hoff factor...
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