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- Multiple ChoicePlease save your changes before editing any questions.How many elements are in C6H12O6?1234
- Multiple ChoicePlease save your changes before editing any questions.How many atoms of carbon (C) are in C6H12O6?361224
- Multiple ChoicePlease save your changes before editing any questions.How many atoms are there TOTAL in:
H2SO46573 - Multiple ChoicePlease save your changes before editing any questions.
The red numbers in the image below represent ________subscriptscoefficientsI don't know, and don't want to tryNone of the answers are correct - Multiple ChoicePlease save your changes before editing any questions.The blue numbers in the image below represent ________I don't know, and don't want to trycoefficientssubscriptsnone of the answers are correct
- Multiple ChoicePlease save your changes before editing any questions.The substances at the beginning of a chemical equation are called the ____productyieldchemical symbolreactants
- Multiple ChoicePlease save your changes before editing any questions.In the equation, 2Mg + O2 ---> 2MgO, which are the reactants?Mg and OMgOMg and MgOO and MgO
- Multiple ChoicePlease save your changes before editing any questions.How many O's are in Al₂(SO₄)₃412724
- Multiple ChoicePlease save your changes before editing any questions.Number of H in 3(NH₄)₂CrO₄42824
- Multiple ChoicePlease save your changes before editing any questions.What does the Law of Conservation of Mass state?Matter cannot be gained or lost in a chemical reaction.Matter can only be lost in a chemical reaction.Matter can only be gained in a chemical reaction.Matter can be gained and lost in a chemical reaction.
- Multiple ChoicePlease save your changes before editing any questions.
What is the right part of a chemical equation called...
H2 + O2 --> H2O
Reactants
Products
Yields
Chemical Equation
- Multiple ChoicePlease save your changes before editing any questions.
What is the arrow in a chemical equation...
H2 + O2 --> H2O
Reactants
Products
Yields
Chemical Equation
- Multiple ChoicePlease save your changes before editing any questions.Balance this equation...
HgO --> 2Hg + O2It is balanced2HgO --> Hg + O22HgO --> 2Hg + O2I don't know...Oh well! - Multiple ChoicePlease save your changes before editing any questions.Balance this equation...
Sb2S3 + O2 --> Sb + SO2It is balancedSb2S3 + 3O2 --> 2Sb + 3SO2Sb2S3 + O2 --> 2Sb + SO2I don't know...Oh well! - Multiple ChoicePlease save your changes before editing any questions.Which of the following is an unbalanced equation?CaCO3 --> CaO + CO2PbO2 + 2H2-->2Pb + H2O2Na+ 2H2O-->2NaOH + H2CS2 + 2O2 --> CO2 + 2SO2
- Multiple ChoicePlease save your changes before editing any questions.When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balancedchargesubscriptrandom numbercoefficient
- Multiple ChoicePlease save your changes before editing any questions.Which of the following shows the correct way to balance the chemical equation?
Fe + O2 -> Fe2O34Fe + 3O2 -> 2Fe2O32 Fe + 3O2 -> Fe2O64 Fe + O6 -> 2Fe2O3None of the options are correctly balanced. - Multiple ChoicePlease save your changes before editing any questions.Is this equation balanced?yesnoNot enough information
- Multiple ChoicePlease save your changes before editing any questions.A sealed test tube containing 8 grams of iron filings and 5 grams of sulfur is heated until the material in the test tube glows bright red. What is the mass of products?Mass is less than 13 gramsMass is equal to 13 gramsMass is greater than 13 gramsMass cannot be measured
- Multiple ChoicePlease save your changes before editing any questions.
Balance this equation:
H2 + Cl2 ---> HCl
It is balanced.
H2 + Cl2 ---> 2HCl
3H2 + Cl2 ---> 6HCl
H2 + 3Cl2 ---> 6HCl
- Multiple ChoicePlease save your changes before editing any questions.Which number should go in the blank?
Al(NO3)3 + _ NaOH -> Al(OH)3 + 3 NaNO31230 - Multiple ChoicePlease save your changes before editing any questions.Which number should go in the blank?
Mn + _ HNO3 → Mn(NO3)2 + H21230 - Multiple ChoicePlease save your changes before editing any questions.
Balancing this Equation,
____ Fe + ____ Cl2 → ____ FeCl3
1, 2 → 2
2, 2 → 2
2, 3 → 2
3, 3 → 2