Which answer below correctly identifies the type of change and the explanation for the change in calcium
carbonate?
A. physical change because even though a state change was observed the calcium carbonate
retained its original properties
B. physical change because even though a particle size change was observed, the calcium carbonate
retained its original properties and was not transformed into a new substance
C. chemical change because a state change was observed, which indicated that the calcium
carbonate was transformed into a different substance
D. chemical change because a particle size change was observed, which indicated that the calcium
carbonate was transformed into a different substance
Answers: 1
Chemistry, 22.06.2019 16:30
How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 ā li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4
Answers: 3
Chemistry, 22.06.2019 18:40
What is one real world example of a colligative property?
Answers: 2
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the waterāsoluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) ā pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
Chemistry, 22.06.2019 20:00
Iām an electrically neutral atomic any element, there are equal numbers of
Answers: 2
Which answer below correctly identifies the type of change and the explanation for the change in cal...
Physics, 27.07.2019 00:30
Mathematics, 27.07.2019 00:30
Chemistry, 27.07.2019 00:30
English, 27.07.2019 00:30
Spanish, 27.07.2019 00:30
Mathematics, 27.07.2019 00:30
Geography, 27.07.2019 00:30
Mathematics, 27.07.2019 00:30
Biology, 27.07.2019 00:30
Chemistry, 27.07.2019 00:30
Mathematics, 27.07.2019 00:30