1. When a solution of magnesium nitrate is mixed with a solution of sodium phosphate, the...
1. When a solution of magnesium nitrate is mixed with a solution of sodium phosphate, the solid that forms is magnesium phosphate. Select the equation that represents the complete ionic equation.
A. Mg(NO3)2(aq) + Na2PO4(aq) àMgPO4(s) + NaNO3(aq)
B. Mg2+(aq) + PO43-(aq) àMgPO4(s)
C. 3Mg(NO3)2(aq) + 2Na3PO4(aq) àMg3(PO4)2(s) + 6NaNO3(aq)
D. 3Mg2+(aq) + 2PO43-(aq) àMg3(PO4)2(s)
E. 3Mg2+(aq)+6NO3-(aq) + 6Na+(aq) + 2PO43-(aq) àMg3(PO4)2(s)+6NO3-(aq)+ 6Na+(aq)
2. How many hydrogen atoms are in 4 molecules of isopropyl alcohol, C3H7O?
A. 2.4 x 1023 atoms of H
B. 4 atoms of H
C. 28 atoms of H
D. 1.7
x 1025 atoms of H
E. 7
atoms of H
3. How many carbon atoms are in 0.550 mol of isopropyl alcohol (C3H7O)?
A. 3.31 x 1023atoms of C
B. 1.65 atoms of C
C. 3 atoms of C
D. 9.94
x 1023 atoms of C
E. 189
atoms of C
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1. When a solution of magnesium
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