Chemical Reaction Exam Vocab Review

Explanation
Anything to the left of an arrow in a chemical equation is a reactant -something that reacts

Explanation
Synthesis is the correct answer because it refers to a type of reaction where two or more reactants combine to form a new, more complex product. In this type of reaction, the reactants are joined together to create a larger molecule or compound. This process is often used in organic chemistry to create more complex molecules from simpler ones.

Explanation
Remember that decompose means to break down

Explanation
Remember you always need oxygen to set things on fire!

Explanation
In a single replacement reaction, one element is replaced by another element in a compound. This occurs when a more reactive element displaces a less reactive element from its compound. The reaction involves the transfer of atoms or ions between compounds, resulting in the formation of a new compound and a different element. This type of reaction is commonly observed in various chemical reactions and is also known as a substitution reaction.

Explanation
In a chemical equation, the arrow represents the reaction that is taking place. Anything to the right of the arrow is the result of the reaction, known as the product. It is the substance or substances that are formed as a result of the chemical reaction.

Explanation
A substance that is dissolved in water is called an aqueous solution. In a chemical equation, this is symbolized as "aq".

Explanation
To balance a chemical equation, coefficients must be added in front of formulas. Coefficients are the numbers that indicate the number of molecules or atoms of each element involved in the chemical reaction. By adjusting the coefficients, the number of atoms of each element on both sides of the equation can be equalized, ensuring that mass is conserved in the reaction.

Explanation
Exothermic reactions are types of reactions that release heat. In these reactions, the energy released by the reaction is greater than the energy required to break the bonds of the reactants. This excess energy is released in the form of heat, resulting in a rise in temperature of the surroundings. Examples of exothermic reactions include combustion reactions, such as burning wood or gasoline, where heat is released as a byproduct.

Explanation
A chemical reaction is a process in which atoms are rearranged, resulting in the formation of one or more new substances.

Explanation
When two chemicals react and the temperature drops, it is called an endothermic reaction. In an endothermic reaction, energy is absorbed from the surroundings, causing the temperature to decrease. This is because the reactants require an input of energy to break their bonds and form new ones. As a result, the reaction absorbs heat from the surroundings, leading to a decrease in temperature.

Explanation
Double displacement reactions occur when two elements or groups of elements in a compound switch places with each other. This results in the formation of two new compounds. This type of reaction is also known as a metathesis reaction. In a double displacement reaction, the reactants and products are usually in the form of ions in an aqueous solution. The reaction can be represented by the general equation AB + CD → AD + CB.