Chemistry, 25.03.2020 18:48 LuvIsRage2
How many water molecules are created when 32 grams of oxygen react completely with 4.0 grams of hydrogen?
a. 2
b. 20
c. 6.02 × 1023
d. 1.2 × 1024
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, 22.06.2019 05:30
Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean
Answers: 3
Chemistry, 22.06.2019 07:00
The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f
Answers: 1
Chemistry, 22.06.2019 09:00
Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset
Answers: 1
How many water molecules are created when 32 grams of oxygen react completely with 4.0 grams of hydr...
Mathematics, 03.03.2021 06:40
Geography, 03.03.2021 06:40
Spanish, 03.03.2021 06:40
Mathematics, 03.03.2021 06:40
Business, 03.03.2021 06:40
Mathematics, 03.03.2021 06:40
Social Studies, 03.03.2021 06:40
Spanish, 03.03.2021 06:40
Advanced Placement (AP), 03.03.2021 06:40
Mathematics, 03.03.2021 06:40
History, 03.03.2021 06:40
Mathematics, 03.03.2021 06:40
Mathematics, 03.03.2021 06:40
Mathematics, 03.03.2021 06:40
Mathematics, 03.03.2021 06:40