Chemistry, 01.06.2021 19:10 jellybellyje
Do Now - Hypothesis: Predict how heart rate changes (increase, decrease or
stay the same) before and after exercise. Use evidence from the circulatory system and
heart rate to support Hypothesis. It’s for my living environments class
Answers: 2
Chemistry, 22.06.2019 18:50
Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space
Answers: 3
Chemistry, 23.06.2019 09:00
What factor besides temperature affects the boiling point of water? a. mass b. number of moles c. volume d. pressure
Answers: 3
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
Do Now - Hypothesis: Predict how heart rate changes (increase, decrease or
stay the same) before an...
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