Chemistry, 18.07.2019 00:30 sierralynnbaldp16d4b
The chemical equation below shows the burning of magnesium (mg) with oxygen (o2) to form magnesium oxide (mgo). 2mg + o2 mc019-1.jpg 2mgo niven wants to calculate the mass of mgo that is produced by the burning of 28.0 g of mg. what is the first step in niven’s calculation? balance the chemical equation. convert grams of mg to moles. determine whether heat is given off by this reaction. find the number of mg atoms in the sample. the answer is b. convert grams of mg to moles.
Answers: 2
Chemistry, 22.06.2019 11:00
The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.
Answers: 2
Chemistry, 22.06.2019 18:30
Which of the following nuclei would be the least stable a 2 protons, 2 neutrons b 1 proton 1 neutron c 1 proton 3 neutrons d 1 proton 2 neutrons
Answers: 3
The chemical equation below shows the burning of magnesium (mg) with oxygen (o2) to form magnesium o...
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