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Zn + HCl ?ZnCl2 + H2 What coefficient values will balance the reaction? A. 1,1,1,1 B. 1,2,1,1 C. 2,2,1,1 D. 1,1,2,2
The answer is B) 1,2,1,1
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User: Zn + HCl ?ZnCl2 + H2 What coefficient values will balance the reaction? A. 1,1,1,1 B. 1,2,1,1 C. 2,2,1,1 D. 1,1,2,2

Weegy: The answer is B) 1,2,1,1
sharpies|Points 7289|

User: __N2 + __O2 + __H2O ? __HNO3 What coefficient values will balance the reaction? A. 2,5,2,4 B. 2,2,2,2 C. 2,2,1,2 D. 1,3,1,2

Weegy: A. 2,5,2,4
Tshirtgirl101|Points 30|

User: What coefficient values will balance the reaction? Mg + O2 ?MgO A. 1,2,1 B. 1,2,2 C. 2,1,2 D. 1,1,2

Weegy: C. 2,1,2
beboythewizkid|Points 2048|

User: What do scientists use to describe chemical reactions? A. laws and theories B. synthesis C. the conservation of matter D. chemical equations

User: The reaction equation below shows the formation of aluminum oxide. Which set of coefficients balances the equation? Al + O2 ?Al2O3 A. 1,1,1 B. 2,3,5 C. 2,4,5 D. 4,3,2





Weegy: C
Expert answered|TheSmartDiva|Points 121|

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Asked 4/7/2012 2:25:54 PM
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In an ionic bond, nonmetals are most likely to A. gain electrons. B. lose electrons. C. share electrons. D. cancel electrons.
Weegy: A. gain electrons User: A similarity between the forces involved in both ionic and covalent bonding is that both A. involve the sharing of electrons. B. involve the transfer of electrons. C. involve the attraction of opposite charges. D. require the same amount of energy to break their bonds. Weegy: C:involve the attraction of opposite charges User: When ionic or covalent bonds are formed, chemical compounds are created. Which of the following does not represent a compound? A. Na atoms B. NO C. CO D. CaO Weegy: A. Na Atoms, because it is one kind of element, instead of two, which is what a compound consists of. User: Here are some examples of molecules: Cl2, CO2, SO2, and CF4. Each of these is related in that they're all bonded covalently. Which of these is a covalently-bonded molecule also? A. He atoms B. K2S C. BaBr2 D. P2O4 Weegy: C. BaBr2 (More)
Question
Expert Answered
Asked 4/6/2012 2:13:30 PM
0 Answers/Comments
Which statement about protons is true? A. They have a charge that is always a whole number. B. They are smaller than neutrons and electrons. C. They weigh much less than electrons. D. They are inherently unstable.
Weegy: User: U-238, the common isotope of uranium, has 92 protons, 146 neutrons, and 92 electrons. U-235 is another isotope of uranium. How do the number of subatomic particles of U-238 and U-235 differ? A. U-238 has three more electrons than U-235. B. U-238 has three more neutrons than U-235. C. U-238 has one more proton and two more neutrons than U-235. D. U-238 has one more electron and two more protons than U-235. User: Why is the modern model of the electron known as the electron cloud model? A. The electrons float above the nucleus like clouds float over Earth. B. The orbitals of the electrons are best described as electron density clouds. C. It was discovered that the electrons themselves have a cloud of energy around them. D. Electrons occupy different energy levels around an atom like the different layers of clouds in Earth's atmosphere. (More)
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Not Answered
Updated 7/2/2012 11:33:52 AM
1 Answer/Comment
B. The orbitals of the electrons are best described as electron density clouds.
Added 7/2/2012 11:33:53 AM
Nitrogen and hydrogen combine to produce ammonia. N2 + H2? NH3 Which set of coefficients balances the equation? A. 1,1,1 B. 1,1,2 C. 1,3,2 D. 2,3,2
Weegy: c User: The reaction equation below shows the formation of aluminum oxide. Which set of coefficients balances the equation? Al + O2 ?Al2O3 A. 1,1,1 B. 2,3,5 C. 2,4,5 D. 4,3,2 Weegy: D (More)
Question
Expert Answered
Asked 4/7/2012 2:21:21 PM
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