Author Question: How many moles of magnesium oxide are produced by the reaction of 3.82 g of magnesium nitride with ... (Read 245 times)

brutforce · **on:** Aug 27, 2018

How many moles of magnesium oxide are produced by the reaction of 3.82 g of magnesium nitride with 7.73 g of water? Mg3N2 + 3H2O 2NH3 + 3MgO

A) 0.114
B) 0.0378
C) 0.429
D) 0.0756
E) 4.57

Question 2

Calcium forms an ion with a charge of ________.

A) 1-
B) 2-
C) 1+
D) 2+
E) 0

Question 3

Calculate the value of E in joules for a system that loses 115 J of heat and has 150 J of work performed on it by the surroundings.

A) -115 J
B) -35 J
C) +35 J
D) +265 J
E) -265 J

Question 4

The first ionization energies of the elements ________ as you go from left to right across a period of the periodic table, and ________ as you go from the bottom to the top of a group in the table.

A) increase, increase
B) increase, decrease
C) decrease, increase
D) decrease, decrease
E) The first ionization energies of the elements are completely unpredictable.

nothere · **Reply #1 on:** Aug 27, 2018

A FREE account is required to view all solutions!

Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

Answer Preview

Only 55% of students answer this correctly