Chemistry, 13.09.2019 05:30, michaeldragon9663
What elements’ isotopes are used to estimate how old something is? why do scientists use more than one type? (be specific, it is not just to get repeated results)
Answers: 3
Chemistry, 22.06.2019 03:00, Dkhaurithompson
Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
Answers: 1
Chemistry, 22.06.2019 14:20, greenbyron88
Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull
Answers: 1
What elements’ isotopes are used to estimate how old something is? why do scientists use more than o...
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