Answers: 1
Chemistry, 23.06.2019 06:30
Which of these describes how heat is transferred by convection* a. sunlight travels through space without the aid of fluids or solids. b. warm air rises and takes the heat with it, eventually, it cools and sinks c. air at the equator rises and sinks at the poles. d. air molecules touch the warm ground, heating them up *not conduction
Answers: 3
Chemistry, 23.06.2019 12:00
Which of the following statements is true? a. most heat energy is easily recovered and used for useful actions. b. friction causes molecules to vibrate more slowly. burning air and gasoline in an c. engine changes chemical energy into mechanical energy. it is impossible to d. change mechanical energy into mechanical energy.
Answers: 1
Chemistry, 23.06.2019 12:30
Idid a lab for chemistry where we put nails in a copper (ii) chloride solution. 1. why did the reaction stop? which reactant was used up? how do you know? 2. describe what was happening to the atoms of iron and copper during the reaction. what is this type of reaction called? 3. what would happen to the ratio of copper to iron if you had placed more nails in the beaker? if you had let the reaction go for less time? 4. what is the accepted ratio of copper atoms to iron atoms in this reaction? account for differences between your experimental value and the accepted value. write the balanced equation for the reaction.
Answers: 2
A procaína (ou novocaína) é um anestésico local sintético, ou seja, não existe na natureza. Ela pode...
History, 30.01.2021 01:00
Mathematics, 30.01.2021 01:00
Mathematics, 30.01.2021 01:00
Mathematics, 30.01.2021 01:00
Mathematics, 30.01.2021 01:00
English, 30.01.2021 01:00
Chemistry, 30.01.2021 01:00
Health, 30.01.2021 01:00
Chemistry, 30.01.2021 01:00
Mathematics, 30.01.2021 01:00
Advanced Placement (AP), 30.01.2021 01:00