Chemistry

Chemistry, 14.07.2019 05:00, rachelsweeney10

Which chemical equation is balanced? a. co2 + 4h2 -> ch4 + 2h2o b. 4co2 + h2 -> ch4 + 2h2o c. co2 + 4h2 -> 2ch4 + 2h2o d. 2co2 + 2h2 -> 2ch4 + 2h2o

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Chemistry, 02.07.2019 04:30, sanakhalid9728

Me fast which is the balanced chemical equation representing the reaction between vinegar and baking soda? c2h4o2 + nahco3 nac2h3o2 + h2o + co2 select one: a. 2c2h4o2 + nahco3 nac2h3o2 + 2h2o + 2co2 b. c2h4o2 + 2nahco3 2nac2h3o2 + h2o + co2 c. c2h4o2 + nahco3 nac2h3o2 + h2o + co2 d. 2c2h4o2 + nahco3 nac2h3o2 + h2o + 2co2 which of the following chemical equations is balanced? select one: a. 4h2 + 2o2 2h2o b. h2 + cl2 4hcl c. 4fe + 3o2 2fe2o3 d. 2fe + hcl fecl2 + h2 which of the following chemical equations is unbalanced? select one: a. 3mg + mn2o3 3mgo + mn b. agno3 + lioh agoh + lino3 c. 2naoh + h2so4 na2so4 + 2h2o d. ch4 + 2o2 co2 + 2h2o which of the following chemical equations is unbalanced? select one: a. 2h2 + o2 2h2o b. 4na + o2 2na2o c. n2 + 2h2 2nh3 d. p4 + 5o2 p4o10 which of the following chemical equations is unbalanced? select one: a. 2al2o3 4al + 3o2 b. 2c2h6 + 7o2 4co2 + 6h2o c. 2h2o2 2h2o + o2 d. 2c + h2 ch4 which of the following chemical equations is balanced? select one: a. p4 + o2 p2o3 b. cf4 + br2 cbr4 + f2 c. na3po4 + koh naoh + k3po4 d. mgf2 + li2co3 mgco3 + 2lif which coefficient before cesium (cs) balances this chemical equation? gaf3 + __cs 3csf + ga select one: a. 3 b. 2 c. 1 d. 4

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Chemistry, 04.08.2019 21:40, Chandler1Gaming

Methane combines with oxygen in the air to make carbon dioxide and water vapor. which of the chemical equations matches the reaction above? a. ch4 + 2o2 co2 + 2h2o b. c2h4 + 2o2 2co + 2h2o c. ch4 + 2co2 2co2 + 2h2o d. ch4 + 2o 2co + 2h2o

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Physics, 01.10.2019 13:50, gamer85

The image shows the combustion of methane. which equation represents this chemical reaction? ch4 + o2 → co2 + h2o 2ch4 + 2o2 → co2 + 2h2o ch4 + 2o2 → 2co2 + h2o ch4 + o2 → 2co2 + 2 h2o ch4 + 2o2 → co2 + 2h2o

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Physics, 15.10.2019 06:30, yvette2003

Me with my quiz? 1.) which coefficients balance this equation? _h2 + _n2 -> _nh3 a. 1, 2, 3 b. 2, 3, 2 c. 3, 1, 2 d. 4, 1, 3 2.) which chemical equation is balanced? a. k2o + h2o -> koh b. k2o + h2o -> 2koh c. k2o + 2h2o -> 2koh d. 2k2o + 2h2o -> 2koh 3.) which chemical equation is balanced? a. co2 + 4h2 -> ch4 + 2h2o b. 4co2 + h2 -> ch4 + 2h2o c. co2 + 4h2 -> 2ch4 + 2h2o d. 2co2 + 2h2 -> 2ch4 + 2h2o 4.) 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 5.) which coefficients balance this equation? _al + _o2 -> _al2o3 a. 2, 3, 1 b. 3, 2, 2 c. 4, 2, 2 d. 4, 3, 2

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Which chemical equation is balanced? a. co2 + 4h2 -> ch4 + 2h2o b. 4co2 + h2 -> ch4 + 2h2o...

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