Chemistry, 11.12.2020 01:50, komari0217

Can someone help me with my chemistry homework please???

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answered: alemvp7258

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1.) Lithium and Sulfide:

Formula: $\bold{Li_{2}S}$ Ion Charges: $\bold{Li~1+,~Li~1+,~S~2-}$

2.) Lithium and Chlorine:

Formula: $\bold{2LiCl}$ Ion Charges: $\bold{Li~1+, Li~1+,Cl~1-,Cl~1-}$

3.) Lithium and Oxygen:

Formula: $\bold{Li_{2}O}$ Ion Charges: $\bold{Li~1+,Li~1+,O~2-}$

4.) Lithium and Nitrogen:

Formula: $\bold{Li_{3}N}$ Ion Charges: $\bold{Li~1+,Li~1+,Li~1+,N~3-}$

5.) Magnesium and Sulfur:

Formula: $\bold{MgS}$ Ion Charges: $\bold{Mg~2+,S~2-}$

6.) Magnesium and Chlorine:

Formula: $\bold{MgCl_2}$ Ion Charges: $\bold{Mg~2+,Cl~1-,Cl~1-}$

7.) Magnesium and Oxygen:

Formula: $\bold{MgO}$ Ion Charges: $\bold{Mg~2+,O~2-}$

8.) Magnesium and Nitrogen:

Formula: $\bold{Mg_3N_2}$ Ion Charges: $\bold{Mg~2+,Mg~2+,Mg~2+,N~3-,N~3-}$ Explanation:

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Lithium and Sulfur: In order to make Lithium Sulfide, There must be 2 Lithium and 1 Sulfur. You transfer the electrons from both Lithium's to the Sulfur.Lithium and Chlorine:In order to make Lithium Chloride, There must be 2 Lithium and 2 Chlorine. You transfer the electrons from both Lithium's to the Chlorines, (One electron for each chlorine.)Lithium and Oxygen:In order to make Lithium Oxide, There must be 2 Lithium and 1 Oxygen. You transfer the electrons from both Lithium to Oxygen. Lithium and Nitrogen:In order to make Lithium Nitride, There must be 3 Lithium and 1 Nitrogen. You transfer the electrons from all 3 Lithium to Nitrogen. Magnesium and Sulfur:In order to make Magnesium Sulfide, There must be 1 Magnesium and 1 Sulfur. You transfer the both electrons from Magnesium to Sulfur. Magnesium and Chlorine:In order to make Magnesium Chloride, There must be 1 Magnesium and 2 Chlorine. You transfer on electron to each Chlorine. Magnesium and Oxygen:In order to make Magnesium Oxide, There must be 1 Magnesium and 1 Oxygen. You transfer both electrons from Magnesium to Oxygen. Magnesium and Nitrogen:In order to make Magnesium Nitride, There must be 3 Magnesium and 2 Nitrogen. You transfer 3 electrons from Magnesium to Nitrogen.

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Can someone help me with my chemistry homework please???

answered: Guest

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally

answered: Guest

The water cycle increase the water content in the earth atmosphere