Chemistry, 20.01.2020 05:31 unknown337
Given 13.5 grams of substance z, if the substance absorbs 36 kilojoules of energy and the temperature increases by 25 degrees celsius, what is the specific heat of the substance? 1.07 x 102 j/g·°c 1.22 x 104 j/g·°c 1.07 x 10-1 j/g·°c 1.22 x 107 j/g·°c
Answers: 1
Chemistry, 21.06.2019 19:00
Does the temperature affect the solubility of sugar and salt in water? if it does tell me like different temperatures with different solubilities so i can sketch down a graph
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Chemistry, 21.06.2019 21:30
Sex cells from female reproductive organ? 1) mitosis 2) fertilization 3) zygote 4) eggs 5) meiosis 6) sperm
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Chemistry, 22.06.2019 04:40
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
Answers: 2
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Given 13.5 grams of substance z, if the substance absorbs 36 kilojoules of energy and the temperatur...
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