Which of the following choices best classifies the following reaction: 2 Al + 6 HCl → 2 AlCl3 + 3 H2 a. combination b. single replacement c. decomposition d. double replacement
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Which of the following choices best classifies the following…
Which of the following choices best classifies the following reaction: Na2(CO3) + Co(NO3)2 2 Na(NO3) + Co(CO3) a. combination b. single replacement c. decomposition d. double replacement
Which of the following ions does not have the same electron…
Which of the following ions does not have the same electron configuration as argon? Ca+2 Na+1 S-2 Cl-1 P-3
Explain why the temperature of a substance does not change a…
Explain why the temperature of a substance does not change as it melts, even though heat is being added.
Hydrogen bonding is a special type of dipolar force that occ…
Hydrogen bonding is a special type of dipolar force that occurs when hydrogen is bonded to what 3 possible elements? (Use appropriate symbols for the elements. Use commas to separate the symbols)
Determine the oxidation number of the underlined element in…
Determine the oxidation number of the underlined element in the following ion. Be sure to indicate if the oxidation number is positive or negative. (HSO2)-1
Which of the following choices best classifies the following…
Which of the following choices best classifies the following reaction: H2O + CO2 H2CO3 a. combination b. single replacement c. decomposition d. double replacement e. redox f. nonredox
According to the chemical naming system, which name is incor…
According to the chemical naming system, which name is incorrect? Formula: Name: SnCl4 tin chloride SCl2 sulfur dichloride Mg(NO3)2 magnesium nitrate Na2(CO3) sodium carbonate FeBr2 iron (II) bromide
Balance the equation below by placing the correct coefficien…
Balance the equation below by placing the correct coefficients in the blanks. Your response should list the coefficients in order from left to right, separated only by commas; no spaces. If no coefficient belongs in a blank, represent it with a “1”. For example the equation 2 H2O → 2 H2+O2 would be represented as 2,2,1. ____As2S3 + ____O2
Which of the following choices best classifies the following…
Which of the following choices best classifies the following reaction: Na2S+ Pb(NO3)2 PbS + 2 Na(NO3) a. combination b. single replacement c. decomposition d. double replacement e. redox f. nonredox