Chemistry, 06.07.2019 05:30 angellong94
Two states of matter are described below. state x: particles are ions that are far apart state y: particles are molecules that are far apart which combination of the state and a substance in that state is correct? state x = lightning; state y = air state x = oxygen; state y = neon state x = oxygen; state y = water state x = air; state y = milk ben wrote the following examples of changes in substances. example a: vegetables are chopped. example b: food is broken up into simpler form during digestion. which statement is correct? both are examples of physical changes. both are examples of chemical changes. example a describes a physical change and example b describes a chemical change. example a describes a chemical change and example b describes a physical change.
Answers: 1
Chemistry, 21.06.2019 21:00
What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?
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Chemistry, 22.06.2019 16:30
Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?
Answers: 2
Chemistry, 23.06.2019 02:30
what is your question? collegechemistry 5+3 pts in november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.
Answers: 3
Two states of matter are described below. state x: particles are ions that are far apart state y:...
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