This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How many moles of magnesium oxide are produced by the reaction of 3.82 g of magnesium nitride with ... (Read 254 times)

brutforce

  • Hero Member
  • *****
  • Posts: 540
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.
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nothere

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Aug 27, 2018
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


brutforce

  • Member
  • Posts: 540
Reply 2 on: Aug 27, 2018
Excellent

kalskdjl1212

  • Member
  • Posts: 353
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

The norm of reaction The norm of reaction
Increased exposure to cupric oxide bulk particles (BPs) and nanoparticles (NPs) by radish plants Increased exposure to cupric oxide bulk particles (BPs) and nanoparticles (NPs) by radish plants
Disulfide Bridge Reaction Disulfide Bridge Reaction
Influence of enzyme-substrate affinity on the rate of an enzyme-catalyzed reaction. Influence of enzyme-substrate affinity on the rate of an enzyme-catalyzed reaction.
Endergonic reaction Endergonic reaction
The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ... The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ...
Video: Gastroesophageal Reflux Disease (GERD)

For a complete list of videos, visit our video library