Chemistry, 10.03.2021 06:10 solikhalifeoy3j1r
If a saturated salt solution gives off heat while being prepared, should you cool down or heat up the solution to get more of the salt to dissolve in it?
Answers: 3
Chemistry, 22.06.2019 05:30
Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.
Answers: 1
Chemistry, 23.06.2019 03:30
Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon
Answers: 1
Chemistry, 23.06.2019 11:20
Sandy is building a small toy car. he wants to use a balloon to power the toy car. he fills a balloon with air and then attaches a straw to the balloon. he tapes the balloon-straw combination to the car and then releases the end of the balloon. the toy moves forward as the air from the balloon comes out the back of the straw. what can sandy do to make the toy car move faster? a) use less air in the balloon. b) blow up the balloon more. c) use a longer straw. d) use larger tires.
Answers: 2
Chemistry, 24.06.2019 02:00
Experiments with cathode rays led to the discovery of the a neutron. b proton. c electron. d nucleus.
Answers: 1
If a saturated salt solution gives off heat while being prepared, should you cool down or heat up th...
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