Chemistry, 25.09.2020 14:01 ellycleland16
It was observed that heat is evolved when 25g of sodium hydroxide is dissolved in 100 mL of pure
water. Do you think there will be any change in mass of the solution? Find the mass percentage of
the solution?
Answers: 3
Chemistry, 23.06.2019 08:10
An experiment is conducted to see if cats preferred skim milk or 2% milk. a cup of skim milkwas put out for 5 kittens and then measured how much the kittens drank over the course of aday. following a cup of 2% milk was purout for the skittens and then masured how much thekittens drank over the course of a day. the same kittens were used and the milk was served atthe same temperature. it was discovered that the cats liked the 2% milk more than the skimmilk. what is the dependent variable in this experiment?
Answers: 1
Chemistry, 23.06.2019 10:30
When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle if the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3 2 kilopascals, what is the partial pressure of the hydrogen?
Answers: 1
It was observed that heat is evolved when 25g of sodium hydroxide is dissolved in 100 mL of pure
wa...
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