Chemistry, 08.05.2021 18:20 jwunder5859
If an element has an atomic number 19, what is the element? If the mass number is 39, how many neutrons does it have? If it is a neutral atom how many electrons does it have?
Answers: 2
Chemistry, 21.06.2019 17:30
This is a mixture that has the same composition throughout.
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 20:30
Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?
Answers: 1
If an element has an atomic number 19, what is the element? If the mass number is 39, how many neutr...
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