A reaction where one element replaces another in a compound单项选择题

A

combination

B

combustion

C

decomposition

D

double displacement

E

single displacement

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Problem #4:  zinc metalis placed in a test tube containinghydrochloric acid Balanced Chemical Equation: Write the balanced chemical reaction by completing the table below. For each of the product, determine what the product will be and place it in the appropriate blank. For example, for the reaction of strontium chloride and sodium iodide, for the "strontium product," type in the formula of the product that contains Sr. Likewise, for "sodium product," type in the formula of the product that contains Na. Please remember to: Write the correct coefficients for all reactants and products. Write the correct states for all reactants and products. (Remember: Do not write 1's in balanced equations.)  Write NO RXN for each product if a reaction does NOT occur. DO NOT worry about formatting subscripts. Thus, if two moles of aqueous strontium hydroxide, please type it as 2 Sr(OH)2(aq). DO NOT a space between the formula and the state of the compound, such as: 2 Sr(OH)2(aq). DO add a space between the coefficient and the formula, such as: 2 Sr(OH)2(aq). Problem #4 [Fill in the blank]  ++ [Fill in the blank] ⟶\longrightarrow zinc reactant   acid reactant [Fill in the blank] ++ [Fill in the blank]   zinc product   gaseous product     Description: For the "Description", type one of the following and DO NOT capitalize:   precipitation neutralization gas evolution single displacement combustion combination decomposition NO RXN Description: [Fill in the blank]

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Which of the following combinations will result in a single displacement reaction?

Which of the following trees corresponds to a potential parse of the ambiguous sentence below, with correct syntactic categories? Some diagnostics are provided.

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