Chemistry, 29.08.2019 16:10 laceytoyne72
2) what is the name of a group of atoms that have the same atomic number but different atomic mass?
3) fluorine’s atomic number is 9 and its atomic mass is 19. how many neutrons does fluorine have?
4). an uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. how many protons does boron have?
5). how can you determine the approximate mass of an atom, in atomic mass units?
6). atoms with the same number of protons but with different electrical charges are
7). in salt, what is the nature of the bond between sodium and chloride?
8). an ionic bond involves
9). the innermost electron shell of an atom can hold up to how many electrons? (the shell closest to the nucleus)
10). what determines the types of chemical reactions or bonds that an atom participates in?
Answers: 1
Chemistry, 22.06.2019 20:10
Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)
Answers: 1
Chemistry, 22.06.2019 21:00
In the experiment you asked to react hydrochloric acid and with sodium hydroxide. when measuring the volume of the reactants, which instrument would give the greatest precision.
Answers: 3
Chemistry, 22.06.2019 23:00
How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.
Answers: 1
2) what is the name of a group of atoms that have the same atomic number but different atomic mass?...
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