The columns in the periodic table are also called A. sets. B. periods. C. families. D. energy levels.
The columns in the periodic table are also called: FAMILIES.
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Updated 4/8/2014 6:56:13 PM
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The columns in the periodic table are also called: FAMILIES.

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The word "nitrogen" could stand for a(n) A. atom. B. element. C. molecule. D. All of these could describe nitrogen.
Question
Updated 1/14/2017 4:50:08 AM
The word "nitrogen" could stand for all of the above (atom, element, and molecule).
Confirmed by jeifunk [1/14/2017 6:43:05 AM]
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)
Question
Updated 4/6/2014 10:24:55 PM
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
The coefficients that balance this equation 4Al + 3O2 -> 2Al2O3 is: D. 4, 3, 2
Confirmed by jeifunk [4/9/2014 11:56:42 PM]
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 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 (More)
Question
Updated 8/3/2014 6:15:33 AM
Mass is defined as the amount of matter contained in an object.
Confirmed by sujaysen [8/3/2014 2:38:28 PM], Rated good by sujaysen
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