Chemistry, 19.01.2021 19:50 nahannahawkins8888
The diagram below shows water being heated in a flask. The flask has a
rubber stopper with a glass tube extending through it. The current level of
the water in the glass tube is indicated. The temperature of the water is 25
degrees Celsius. If heating continues, the water in the glass tube will most
likely:
1. turn into solid
2.become more dense
3.move into the flask
4.rise water in the tube
Answers: 3
Chemistry, 22.06.2019 12:40
When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 Β°c to 31.53 Β°c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign
Answers: 2
Chemistry, 22.06.2019 13:30
Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.
Answers: 1
The diagram below shows water being heated in a flask. The flask has a
rubber stopper with a glass...
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