Chemistry, 25.03.2020 20:22 JalenBunting2441
Q. 40 g of water. specific heat of water is 4.18 J/g*°C. temperature changes from 20° C to 25°C, how much heat energy (Q) moves from the water to the surroundings?
a
3,344 J
b
836 J
c
4,180 J
d
209 J
Answers: 1
Chemistry, 22.06.2019 04:00
Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
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Chemistry, 22.06.2019 14:50
Which of the following is most likely true about water in chemical solutions?
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Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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Q. 40 g of water. specific heat of water is 4.18 J/g*°C. temperature changes from 20° C to 25°C, how...
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