Question and answer
Question not found
Ask a question
Not a good answer? Get an answer now. (Free)
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
The coefficients in a balanced chemical equation always can express the ratio of A. moles of reactants and products. B. volume of reactants and products. C. atoms of reactants and products. D. mass of reactants and products.
Weegy: A chemical equation shows the ratio of C. atoms of reactants and products. User: When magnesium carbonate, MgCO2, reacts with nitric acid, HNO3, it forms magnesium nitrate, Mg(NO3)2, and carbonic acid, H2CO3. Carbonic acid then breaks down into water and carbon dioxide. Which two types of reactions take place in this process? A. synthesis and decomposition B. single-replacement and combustion C. double-replacement and decomposition D. double-replacement and combustion Weegy: C. double-replacement and decomposition User: Which of the following is NOT always true about a synthesis reaction? A. One product is formed. B. There is only one reactant. C. The general formula is A + B ? C. D. A reactant might be a compound, or it might be an element. Weegy: C. The general formula is A + B ? C. (More)
Question
Expert Answered
Asked 7/21/2012 12:02:12 PM
0 Answers/Comments
Which of the following does NOT show the law of conservation of mass? A. 24 g of Mg burn in 32 g O2 to produce 56 g of MgO. B. 24 mL of Mg burn in 32 mL O2 to produce 56 mL of MgO. C. 2 atoms of Mg react with 1 molecule of O2 to produce 2 units of MgO. D. 1 atom of Mg reacts with 1 atom of O to produce a unit of MgO that contains 2 atoms. User: Which of the following is a balanced chemical equation for the synthesis of NaBr from Na and Br2? A. Na + Br2 ? NaBr B. 2Na + Br2 ? ...
Weegy: D. 2Na + Br2 - - > 2NaBr User: Methane, CH4, burns in oxygen gas to form water and carbon dioxide. What is the correct balanced chemical equation for this reaction? A. CH4 + O ? H2O + CO2 B. CH4 + 4O ? 2H2O + CO2 C. CH4 + O2 ? H2O + CO2 D. CH4 + 2O2 ? 2H2O + CO2 Weegy: D. CH4 + 2O2 ? 2H2O + CO2 User: How many atoms are present in 3 moles of chromium? A. 6.02 x 1023 atoms B. 1.80 x 1023 atoms C. 1.80 x 1024 atoms D. 52.0 atoms Weegy: C. 1.80 x 1024 atoms User: ow many grams of CO2 are in 2.1 mol of the compound? A. 21.0 g B. 44.0 g C. 66.0 g D. 92.4 g Weegy: 1 mole CO2 = 44.0096 grams CO2 (molar mass of CO2) Therefore, 2.1 mol CO2 x (44.0096 grams CO2/1 mole CO2) = 92.4 grams CO2 - > D User: An industrial process makes calcium oxide by decomposing calcium carbonate. Which of the following is NOT needed to calculate the mass of calcium oxide that can be produced from 4.7 kg of calcium carbonate? A. the balanced chemical equation B. molar masses of the reactants C. molar masses of the product D. the volume of the unknown mass Weegy: The answer is A. moles of reactants and products. (More)
Question
Expert Answered
Asked 7/21/2012 11:56:02 AM
0 Answers/Comments
25,375,891 questions answered
Popular Conversations
What is exports?
Weegy: Net Exports is the value of a country's total exports minus the value of its total imports. User: What is ...
5/31/2016 9:24:53 AM| 3 Answers
Why are closing costs a one time fee?
Weegy:
5/30/2016 12:02:23 AM| 2 Answers
What is Marasmus? User: What is kwashiorkor?
Weegy: Kwashiorkor is a childhood disease that is caused by protein deprivation. User: What is ketosis? User: ...
5/30/2016 9:38:40 AM| 2 Answers
Psilocybin is a type of __________. ...
Weegy: Psilocybin is a type of hallucinogen. User: Antibiotics kill harmful bacteria or prevent bacteria from ...
5/30/2016 5:50:06 PM| 2 Answers
Which of the following is known to increase an individual's chances ...
Weegy: Diabetes is characterized by excessively low blood sugar levels. Yes, this can be true about diabetes. User: ...
5/30/2016 8:09:40 PM| 2 Answers
(-3 - 5i)(-3 + 5i) =
Weegy: (-3 + 5i) - (7 + 9i) = -3 + 5i - 7 - 9i; = -10 - 4i User: Which of the following equations shows the ...
5/31/2016 12:10:10 AM| 2 Answers
The Sino-Soviet split was followed by an economic agreement between ...
Weegy: The Sino-Soviet split was followed by an economic agreement between the U.S. and the USSR. User: Which of ...
5/31/2016 1:01:59 AM| 2 Answers
One of the biggest risks involved in using e-mail is A. loss ...
Weegy: One of the biggest risks involved in using e-mail is junk mail. User: When addressing an envelope for ...
5/31/2016 10:05:29 AM| 2 Answers
Weegy Stuff
S
Points 764 [Total 764] Ratings 10 Comments 644 Invitations 2 Offline
S
Points 745 [Total 745] Ratings 15 Comments 595 Invitations 0 Offline
S
Points 658 [Total 658] Ratings 0 Comments 658 Invitations 0 Online
S
1
L
L
P
R
P
L
P
P
R
Points 315 [Total 12567] Ratings 2 Comments 295 Invitations 0 Online
S
L
P
P
P
Points 166 [Total 3543] Ratings 0 Comments 166 Invitations 0 Offline
S
Points 38 [Total 107] Ratings 0 Comments 38 Invitations 0 Offline
S
Points 30 [Total 361] Ratings 0 Comments 30 Invitations 0 Offline
S
L
Points 29 [Total 4121] Ratings 0 Comments 29 Invitations 0 Offline
S
Points 22 [Total 22] Ratings 1 Comments 12 Invitations 0 Online
S
Points 12 [Total 12] Ratings 1 Comments 2 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.