Chemistry, 27.06.2019 01:00 jamarstand
What are the oxidation numbers of the atoms in this reaction? check all that apply. mg(s) + 2hcl(aq) β mgcl2(aq) + h2(g) 0 for mg in mg and mgcl2 0 for mg(s) and h in h2 +1 for h in hcl -1 for cl in hcl +2 for mg in mgcl2
Answers: 2
Chemistry, 21.06.2019 21:00
Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal
Answers: 2
Chemistry, 22.06.2019 02:10
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (Ξ΄ch< (c14h10,s)=β7061 kj molβ1.)
Answers: 3
Chemistry, 22.06.2019 10:00
Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this
Answers: 3
What are the oxidation numbers of the atoms in this reaction? check all that apply. mg(s) + 2hcl(aq...
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