Types Of Reactions And Vocabulary Review
(10).webp "Types Of Reactions And Vocabulary Review - Quiz")
Review of some basic chemistry terms
Questions and Answers
- 1.
One mole of oxygen gas has a volume of ? at STP. (You must give the number and then the units. Leave a space between the number and the units. Do not abbreviate or capitalize the units.)
Explanation
At STP (Standard Temperature and Pressure), one mole of any gas occupies a volume of 22.4 liters. This is known as molar volume and is a result of the ideal gas law. Therefore, the correct answer is 22.4 liters.Rate this question:
- 2.
One mole of oxygen gas has a mass of ?. (You must give the number and then the units. Leave a space between the number and the units. Do not abbreviate or capitalize the units.)
Explanation
The molar mass of oxygen gas (O2) is 32.0 grams per mole. This means that in one mole of oxygen gas, there are 32.0 grams of oxygen atoms. Therefore, the correct answer is 32.0 grams.Rate this question:
- 3.
One mole of oxygen gas would consist of ? molecules.
- A.
6.03 x 10^22
- B.
6.02 x 10^23
- C.
6.00 x 10^24
- D.
6.24 x 10^23
Correct Answer
B. 6.02 x 10^23Explanation
One mole of any substance contains Avogadro's number of particles, which is approximately 6.02 x 10^23. Therefore, one mole of oxygen gas would consist of 6.02 x 10^23 molecules.Rate this question:
-
- 4.
A reaction involving two ionic compounds that form two new compounds when mixed:
Correct Answer
double replacementExplanation
A double replacement reaction is a type of chemical reaction where two ionic compounds exchange ions to form two new compounds. In this reaction, the positive ions of one compound combine with the negative ions of the other compound, and vice versa. This results in the formation of two new compounds with different combinations of ions. Therefore, the given answer "double replacement" correctly describes the reaction involving two ionic compounds that form two new compounds when mixed.Rate this question:
- 5.
A reaction in which a single compound is broken down into simpler substances
Correct Answer
decompositionExplanation
Decomposition is the correct answer because it refers to a reaction where a single compound is broken down into simpler substances. In this type of reaction, the compound undergoes a chemical change and is transformed into two or more smaller molecules or elements. This process can be facilitated by heat, light, or the addition of a catalyst. Decomposition reactions are commonly observed in various natural and industrial processes, such as the breakdown of organic matter in composting or the decomposition of hydrogen peroxide into water and oxygen gas.Rate this question:
- 6.
A reaction in which an element and a compound are mixed and the element takes the place of one of the elements in the compound
Correct Answer
single replacementExplanation
In a single replacement reaction, an element replaces one of the elements in a compound when they are mixed together. This type of reaction occurs when the element is more reactive than the element it is replacing. It is also known as a substitution reaction, as the element substitutes itself into the compound. This reaction can be represented by the general equation A + BC → AC + B, where A is the element and BC is the compound.Rate this question:
- 7.
A reaction that yields only one type of product
Correct Answer
combinationExplanation
A combination reaction is a type of chemical reaction that yields only one type of product. In this reaction, two or more reactants combine to form a single product. This can occur when elements or compounds react to form a new compound, or when two compounds react to form a new compound. The result is a single product with a different chemical composition than the reactants. Combination reactions are characterized by the absence of multiple products, making them distinct from other types of reactions such as decomposition or displacement reactions.Rate this question:
- 8.
A reaction in which oxygen reacts with an organic compound, often producing energy in the form of heat or light.
Correct Answer
combustionExplanation
Combustion is a reaction in which oxygen reacts with an organic compound, often producing energy in the form of heat or light. During combustion, the organic compound is oxidized and breaks down into simpler molecules, releasing energy in the process. This reaction is commonly observed in the burning of fuels, such as gasoline or wood, where the oxygen in the air combines with the organic compounds to produce heat and light. Combustion is an exothermic reaction, meaning it releases energy, and it is an essential process for various applications, including heating, cooking, and energy production.Rate this question:
- 9.
An insoluble compound that results when two solutions are mixed
Correct Answer
precipitateExplanation
When two solutions are mixed, a precipitate is formed. A precipitate is an insoluble compound that forms as a solid when two solutions react with each other. This occurs when the ions in the solutions combine to form a compound that is not soluble in the solvent. The precipitate can be observed as a solid that settles at the bottom of the container or forms as a cloudy or milky solution.Rate this question:
- 10.
Incomplete combustion results in the production of the poisonous gas ?, which can keep oxygen from getting to your cells.
- A.
Carbon dioxide
- B.
Nitrogen monoxide
- C.
Sulfur trioxide
- D.
Carbon monoxide
Correct Answer
D. Carbon monoxideExplanation
Incomplete combustion occurs when there is insufficient oxygen for a fuel to burn completely, resulting in the production of carbon monoxide. Carbon monoxide is a poisonous gas that can bind to hemoglobin in red blood cells, preventing them from carrying oxygen to the body's cells. This can lead to oxygen deprivation and various health issues, including dizziness, headaches, and even death in severe cases.Rate this question:
-
- 11.
In complete combustion, a fuel reacts with ? and produces ? and ?
- A.
Carbon dioxide: water and oxygen
- B.
Water: oxygen and carbon dioxide
- C.
Oxygen: water and carbon dioxide
- D.
Oxygen: water and carbon monoxide
Correct Answer
C. Oxygen: water and carbon dioxideExplanation
In complete combustion, a fuel reacts with oxygen and produces water and carbon dioxide.Rate this question:
-
Back to top