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A diamond has a density of 3.5 g/cm³. What is the mass of a diamond with a volume of 0.3 cm³? A. 11 g B. 1.2 g C. 1.05 g D. 0.086 g
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Asked 4/1/2014 5:47:00 PM
Updated 8/3/2014 6:15:33 AM
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User: A diamond has a density of 3.5 g/cm³. What is the mass of a diamond with a volume of 0.3 cm³? A. 11 g B. 1.2 g C. 1.05 g D. 0.086 g

Weegy: d=m/v
girl1986|Points 199|

User: Which of the following can be defined as the amount of matter contained in an object? A. mass B. weight C. density D. volume

Question
Asked 4/1/2014 5:47:00 PM
Updated 8/3/2014 6:15:33 AM
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Mass is defined as the amount of matter contained in an object.
Added 8/3/2014 6:15:33 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [8/3/2014 2:38:28 PM], Rated good by sujaysen
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Density is calculated by dividing the ________ by the _________. A. volume, area B. mass, weight C. volume, mass D. mass, volume
Weegy: Density is calculated by dividing the mass of an object by its volume. (More)
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Updated 4/6/2014 10:24:55 PM
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Which of the following is a physical property of water? A. Water has a pH of 7. B. Water is not flammable. C. Water reacts with sodium. D. Water is a liquid at room temperature.
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Question
Updated 3/26/2014 11:32:56 PM
1 Answer/Comment
Burning paper is a change in state.
Added 3/26/2014 11:32:56 PM
This answer has been confirmed as correct and helpful.
Which chemical equation is balanced? A. H2 + O2 - > H2O B. H2 + O2 - > 2H2O C. 2H2 + O2 - > 2H2O D. 2H2 + 2O2 - > 2H2O
Weegy: 2H2 + O2 - > 2H2O is the balanced equation. User: Which chemical equation is balanced? A. 2Mg + O2 - > MgO B. Mg + O2 - > 2MgO C. 2Mg + O2 - > 2MgO D. 2Mg + 2O2 - > 2MgO Weegy: A chemical equation is balanced c. 2Mg + O2 -> 2MgO User: How does the law of conservation of matter apply to chemical equations? A. The sum of the coefficients on each side of the equation must be the same. B. The sum of the atomic masses on both sides of the equation must be the same. C. The sum of the atomic numbers on both sides of the equation must be the same. D. The total number of atoms of each element on both sides of the equation must be the same. Weegy: The law of conservation of matter apply to chemical equations when: The sum of the atomic masses on both sides of the equation must be the same. User: What is a coefficient in a chemical equation? A. the subscript after an atomic symbol B. a subscript before an atomic symbol C. a number following an elemental or molecular symbol D. a number preceding an elemental or molecular symbol Weegy: coefficient is D. a number preceding an elemental or molecular symbol User: In a chemical equation, what name does the left side have? A. sum B. yield C. products D. reactants Weegy: D.reactants User: Which coefficients balance this equation? _H2 + _N2 -> _NH3 A. 1, 2, 3 B. 2, 3, 2 C. 3, 1, 2 D. 4, 1, 3 Weegy: Coefficients 3, 1, 2 balance the equation _H2 + _N2 -> _NH3. ***3H2 + 1N2 -> 2NH3. User: Which chemical equation is balanced? A. K2O + H2O -> KOH B. K2O + H2O -> 2KOH C. K2O + 2H2O -> 2KOH D. 2K2O + 2H2O -> 2KOH Weegy: B. K2O + H2O -> 2KOH User: Which coefficients balance this equation? _CH4 + _O2 -> _CO2 + _H2O A. 1, 1, 1, 1 B. 1, 1, 2, 1 C. 1, 2, 1, 2 D. 2, 1, 2, 1 Weegy: B. 1, 2, 1, 2 Answer found on: User: ... (More)
Question
Updated 4/9/2014 11:48:32 PM
1 Answer/Comment
The coefficients that balance this equation 4Al + 3O2 -> 2Al2O3 is: D. 4, 3, 2
Added 4/9/2014 11:48:32 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/9/2014 11:56:42 PM]
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