Biology, 16.12.2020 17:00 dobrzenski8372
A beaker of with 115 mL of solution has a temperature of 21 °C. The solution contains 5 g of salt and 115 mL of water. Students added two ice cubes to the solution and stirred the solution with a stirring rod. Which properties of the solution changed as the ice cubes melted?
Answers: 3
Biology, 22.06.2019 01:30
Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.
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Biology, 22.06.2019 03:00
Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels
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Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?
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Biology, 22.06.2019 09:00
Several billion years ago which gas was the least prevailant in the atmosphere
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