Science Chemical Reactions

Question 1

-Is a process in which atoms of substances rearrange to form one or more new substances

Answer 1

Chemical Reaction

Question 2

-Consists of symbols and chemical formulas of the reacting substances and products

Answer 2

Chemical Equation

Question 3

What are the parts of a Chemical Equation

Answer 3

-Reactants
-Products
-Reaction Arrow
-Chemical Formula
-State of Matter
-Coefficients
-Subscript

Question 4

+

Answer 4

-Separates two reactants or two products

Question 5

→

Answer 5

-“Yields”, separates reactants from products

Question 6

⇌

Answer 6

-Use in the place of → for reversible actions

Question 7

(s), (l), (g)

Answer 7

-Designates a reactant or product in the solid state, liquid state, or gaseous state; placed after the formula

Question 8

(aq)

Answer 8

-Designates an aqueous solution; the substance is dissolved in water; placed after the formula

Question 9

Pt→

Answer 9

-A formula written above or below the yields sign indicates its use as a catalyst (Ex. Platinum)

Question 10

Δ→ / Heat→

Answer 10

-Indicates that heat is supplied to the reaction

Question 11

-The general form of a combination reaction is
-A + B -> AB
-One combination reaction is two elements combining to form a compound
-Can also be called synthesis reactions

Answer 11

Combination/Synthesis Reactions

Question 12

-The general form of a decomposition reaction is
-AB -> A + B
-Binary compounds are compounds composed of just two elements.
-The simplest kind of decomposition reaction is when a binary compound decomposes into elements

Answer 12

Decomposition Reactions

Question 13

-The general form of a single-replacement (also called single-displacement reaction is
-A + BC -> AC + B
-Element A is a metal and replaces element B, also a mental, in the compound
-When the element that is doing the replacing is a nonmetal, it just replace another nonmetal in a compound, and the general equation becomes

Answer 13

Single-Replacement Reactions

Question 14

-The general form of a double-replacement (also called double-displacement) reaction is:
-AB + CD -> AD + CB
-A and Care positively-charged cations, while B and D are negatively-charged anions
-Double-replacement reactions generally occur between substances in aqueous solution
-In order for a reaction to occur, one of the products is usually a solid precipitate, a gas, or a molecular compound such as water

Answer 14

Double – Replacement Reactions