Chemistry, 04.06.2021 17:20 billycain9647
Brad wants to learn about what happens to the materials that make up a plant after the plant dies. Which of the following could help Brad answer this question? A. Brad could go outside to look at trees and draw pictures of them in his notebook. B. Brad could ask all of his classmates to tell him their favorite kind of plant. C. Brad could plant a rosebush in a sunny area and measure how tall it grows. D. Brad could gather several dead leaves and watch what happens to them over several weeks.
Answers: 3
Chemistry, 23.06.2019 04:00
Calculate the mass of 0.750 mol of the following substance. na3po4. , i'm not quite sure on how to set up the problem to solve! : (
Answers: 1
Chemistry, 23.06.2019 08:50
Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas.caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible.relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)
Answers: 3
Chemistry, 23.06.2019 14:00
Which of the following represents the balanced reduction half-reaction from the redox reaction? (2 points) pb + pd(no3)2 yields pb(no3)2 + pd pb yields pd2+ + e- pd2+ + 2e- yields pd pb + e- yields pb 2 pd2+ + 4 e- yields 2 pd
Answers: 1
Chemistry, 23.06.2019 17:00
Liquid nitrogen is kept at a temperature of -320 degrees. when liquid nitrogen is heated it quickly boils and turns into gas. which pair of pictures represent the change caused by adding heat to liquid nitrogen?
Answers: 3
Brad wants to learn about what happens to the materials that make up a plant after the plant dies. W...
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