Chemistry Trivia Question and Answers
1.
What are the substances that are the result of a chemical reaction called?
Answer:
Products
Explanation:
In a chemical reaction, reactants undergo a transformation to form new substances known as products. These products are the end result of the reaction and can have different properties than the reactants. Reactants are the starting materials that participate in the reaction, while catalysts are substances that speed up the reaction without being consumed themselves.
2.
What is a substance called that is used to speed up a chemical reaction but is not consumed as part of the reaction?
Answer:
Catalyst
Explanation:
A catalyst is a substance that is used to speed up a chemical reaction without being consumed or permanently changed in the process. It works by providing an alternative pathway for the reaction to occur with lower activation energy, allowing the reaction to proceed more quickly. Unlike reactants and products, which are directly involved in the reaction and are consumed or produced, a catalyst remains unchanged and can be used again in subsequent reactions.
3.
What is the physical state of a substance when it forms a precipitate?
Answer:
Solid
Explanation:
A precipitate is a solid substance formed from a chemical reaction in a liquid solution. It occurs when the reactants in solution combine to form an insoluble solid, which then settles out of the solution. Precipitates can vary in size and appearance, ranging from fine particles to chunky substances.
4.
What part of the atom is involved in chemical bonding?
Answer:
Valence electrons
Explanation:
Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding. These electrons determine the atom's reactivity and ability to form chemical bonds with other atoms. The nucleus, which contains protons and neutrons, does not directly participate in chemical bonding.
5.
Which chemical reaction occurs when energy is released?
Answer:
Exothermic
Explanation:
An exothermic reaction is a type of chemical reaction in which energy is released in the form of heat or light. This means that the products of the reaction have less energy than the reactants, resulting in a net release of energy. Examples of exothermic reactions include combustion reactions, where a fuel reacts with oxygen to produce heat and light, and many types of oxidation reactions.
6.
What chemical reaction occurs when energy is absorbed?
Answer:
Endothermic
Explanation:
An endothermic reaction is a chemical reaction that absorbs energy from its surroundings. This means that the reaction requires an input of energy in order to proceed. In an endothermic reaction, the products have a higher energy level than the reactants, and the excess energy is absorbed from the surroundings. This is in contrast to an exothermic reaction, which releases energy to the surroundings.
7.
What is a bond called where electrons are transferred?
Answer:
Ionic bond
Explanation:
An ionic bond is formed when electrons are transferred from one atom to another. In this type of bond, one atom gains electrons to become negatively charged (anion) while the other atom loses electrons to become positively charged (cation). The attraction between these opposite charges holds the atoms together, forming the ionic bond. Covalent bonds, on the other hand, involve the sharing of electrons between atoms.
8.
What is a bond called that occurs between metals and nonmetals?
Answer:
Ionic bond
Explanation:
An ionic bond is a type of chemical bond that occurs between metals and nonmetals. In this type of bond, electrons are transferred from the metal atom to the nonmetal atom, resulting in the formation of positive and negative ions. The opposite charges of the ions attract each other, creating a strong bond. This bond is characterized by the electrostatic attraction between the oppositely charged ions.
9.
What is a bond called that occurs between nonmetals and nonmetals?
Answer:
Covalent bond
Explanation:
A covalent bond occurs between nonmetals and nonmetals when they share electrons. In this type of bond, the atoms involved have similar electronegativities, which means they have a similar ability to attract electrons. As a result, they share electrons to achieve a stable electron configuration. This sharing of electrons creates a strong bond between the atoms, forming a molecule.
10.
What is the conversion of sugars in wort to alcohol and carbon dioxide?
Answer:
Fermentation
11.
What is the most commonly used material in the manufacturing of semiconductors?
Answer:
Monocrystalline Silicon
12.
What is the name of the protein found in wheat flour?
Answer:
Gluten
13.
If nitrous oxide is added to an engine, what will the effect be?
Answer:
Adds More Oxygen To The Engine
14.
What is known as the energy required to start a chemical reaction?
Answer:
Activation Energy
15.
What is formed when metals are blended with other metals?
Answer:
Alloys
16.
What number is also the same as proton number and the number of electrons of a neutral atom?
Answer:
Atomic Number
17.
What branch of chemistry is concerned with the chemistry of living organisms?
Answer:
Biochemistry
18.
What is the temperature at which the application of heat raises the temperature of a liquid no further, but converts it to a vapor?
Answer:
Boiling Point
19.
What is a compound or mixture of chemical compounds that is used to maintain a steady pH?
Answer:
Buffer
20.
Which substances alter the speed of chemical reactions?
Answer:
Catalysts
21.
Which device is fitted to the exhaust system of a motor vehicle in order to reduce toxic emissions from the engine?
Answer:
Catalytic Converter
22.
What is a method to indicate reactants and products of a chemical reaction using chemical formulas?
Answer:
Chemical Equation
23.
What synthetic, odorless, non toxic, non flammable and chemically inert groups of compound are known as CFC's?
Answer:
Chlorofluorocarbons
24.
What is the most abundant element in the known universe?
Answer:
Hydrogen
25.
Dr. Jonas Salk developed a vaccine for which virus in 1954?
Answer:
Polio
26.
What is the formula of sulphuric acid?
Answer:
H2SO4
27.
What are the main two elements that undergo fusion to power the sun?
Answer:
Hydrogen And Helium
28.
The study of composition and properties of substances and matter is called?
Answer:
Chemistry
29.
What is the chemical combination of silicon and oxygen called?
Answer:
Silica
30.
What name is given to water in the gaseous state?
Answer:
Steam
31.
What term is used for military use of harmful biological agents?
Answer:
Biological Warfare
32.
What is a link between atoms in a molecule called?
Answer:
Chemical Bond
33.
What are chemicals made from oil called?
Answer:
Petrochemicals
34.
The science term "biological warfare" is best defined as?
Answer:
Military Use Of Harmful Agents
35.
How does one find Molarity (M)?
Answer:
Moles Of Solute/L Of Solution
36.
What is the main active chemical in marijuana?
Answer:
Tetrahydrocannabinol
37.
What kind of party is the drug, ecstasy, most associated with?
Answer:
Rave
38.
What happens to water when it freezes?
Answer:
Expands By About 9%
39.
What common element reacts with chlorine?
Answer:
Sodium
40.
What sort of change happens to a head of lettuce when you cut it in half?
Answer:
Physical
41.
What will happen to a bowl of ice cream left in the sun?
Answer:
It Will Melt
42.
What state of matter is air?
Answer:
Gas
43.
What word means "two or more types of matter are evenly distributed in a mixture"?
Answer:
Solution
44.
Which element is a poisonous gas that combines with sodium to form table salt?
Answer:
Chlorine
45.
What do scientists use to help organize the elements?
Answer:
Periodic Table Of Elements
46.
What property is a measurement of how hot or cold something is?
Answer:
Temperature
47.
What makes matter expand when it's heated and contract when it's cooled?
Answer:
Heat
48.
What are the building blocks of matter called?
Answer:
Atoms
49.
What is a substance made from only one type of atom called?
Answer:
Element
50.
Analysis of the black soot left over from a fire would reveal what primary element?
Answer:
Carbon
51.
What is the abbreviation for an element called?
Answer:
Symbol
52.
What type of property does the water cycle show?
Answer:
Physical Property
53.
Which state of matter has molecules packed together tightly?
Answer:
Solid
54.
What will happen to most matter that is heated?
Answer:
It Expands
55.
What will usually happen to matter that is cooled?
Answer:
It Contracts
56.
What metal is used in airplanes for its lightweight properties?
Answer:
Aluminum
57.
What particle in an atom has a positive charge?
Answer:
Proton
58.
What energy is stored in the form of chemical compounds?
Answer:
Chemical Energy
59.
What is the total energy of particles in matter called?
Answer:
Thermal Energy
60.
What is thermal energy that moves from warmer objects to cooler ones called?
Answer:
Heat
61.
What is the unit defined as the energy needed to raise one gram of water by 1 degree Celsius?
Answer:
Calorie
62.
What do cooks use to tell when meat is done?
Answer:
Meat Thermometer
63.
What device controls temperature with a switch?
Answer:
Thermostat
64.
What is table salt's chemical name?
Answer:
Sodium Chloride
65.
What is the splitting of atomic nuclei called?
Answer:
Nuclear Fission
66.
What process causes molecules to move into areas that have fewer molecules?
Answer:
Diffusion
67.
What is the smallest part of matter called?
Answer:
Atom
68.
Which is the major form of sugar used by living things as fuel?
Answer:
Glucose
69.
What are electrically charged atoms called?
Answer:
Ions
70.
What is a combination of substances that still remain intact?
Answer:
Mixture
71.
What are compounds that contain carbon called?
Answer:
Organic
72.
What are proteins that help speed up chemical reactions called?
Answer:
Enzymes
73.
What occurs when molecules are evenly spread out in a space?
Answer:
Equilibrium
74.
What is the diffusion of water through a cell membrane called?
Answer:
Osmosis
75.
Relating to chemistry, what is a catalyst?
Answer:
Reaction Agent
76.
What particle has a positive charge of 1 unit?
Answer:
Proton
77.
How do acids normally taste?
Answer:
Sour
78.
Which molecule may interact with cyclin dependent kinase?
Answer:
P21 Protein
79.
What is an atom that has more electrons than normal referred to as?
Answer:
Negative Ion
80.
What two solvents could be used in a successful extraction?
Answer:
Water And Ether
81.
What is meant in saying that two liquids are miscible?
Answer:
They Are Mutually Soluble In Any Ratio
82.
What does the "T' represent in t-butyl?
Answer:
Tertiary
83.
What phenomenon explains why cyclohexatriene does not exist?
Answer:
Aromaticity
84.
Which scientist was the first to discover that for DNA, "A=T and C=G"?
Answer:
Erwin Chargaff
85.
Which element gained notoriety from poisoning the waters around Japan?
Answer:
Mercury
86.
How are neutrons and protons held together in a nucleus?
Answer:
Nuclear Forces
87.
What is the primary use for silver?
Answer:
Photography
88.
Which group of organic chemical compounds is characterized by the presence of one or more aliphatic hydroxy groups in the molecule?
Answer:
Alcohols
89.
What type of compound is prepared by the oxidation of primary alcohols?
Answer:
Aldehydes
90.
What compounds that are soluble in water are classed as bases?
Answer:
Alkalis
91.
What substance is industrially prepared by the Haber Process?
Answer:
Ammonia
92.
Which branch of chemistry deals with the determination of the chemical composition of substances?
Answer:
Analytical
93.
What are organic compounds in which some of the bonding elements are delocalized?
Answer:
Aromatic Compounds
94.
What is the result of the forces of attraction that hold together atoms of an element or elements to form a molecule or a compound?
Answer:
Bond
95.
What is the mechanism that produces very fast exothermic reactions, as in the formation of flames and explosions?
Answer:
Chain Reaction
96.
In RNA thymine from DNA is replaced by what?
Answer:
Uracil
97.
What element has an atomic number of 40?
Answer:
Zirconium
98.
What is 37 degrees Celsius in Fahrenheit?
Answer:
98.6 Degrees F
99.
On a prescription, what does "QOD" stand for?
Answer:
Every Other Day
100.
In a triple bond, how many each pi and sigma bonds are there?
Answer:
Two Pi, One Sigma
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