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Total questions: 50
Worksheet time: 25mins
Volume is:
The amount a three-dimensional space an object occupies.
The melting of the ice.
A pure substance made of only one kind of atom, e.g., carbon, hydrogen, and oxygen.
Mass is:
A sign of an element.
A measure of the amount of matter; measurement you make using a balance; anything that has mass or takes up space; general properties of all matter.
The smallest unit of an element that maintains the properties of that element.
Atom is:
The smallest unit of an element that maintains the properties of that element
The tendency of an atom to gain or lose electrons in reacting with other atoms
A short and simple representation of a chemical reaction
Element is:
A combination of chemical symbols that shows the composition of a compound.
A pure substance made of only one kind of atom, e.g., carbon, hydrogen, and oxygen.
Anything that has mass or takes up space; general properties of all matter.
Compound is:
A pure substance made of only one kind of atom
A physical process like the melting of the ice.
A substance that is made from the atoms of two or more elements that are chemically bonded; consists of many molecules, e.g., water.
Molecule is:
A measure of the amount of matter; anything that has mass or takes up space.
The smallest unit of an element or compound that retains all of the properties of that element or compound
The amount of a three-dimensional space an object occupies.
Property is:
A combination of chemical symbols that shows the composition of a compound
The smallest unit of an element that maintains the properties of that element.
may be a characteristic that defines an entire group of substances; can be used to classify an
unknown substance as a member of that group; either intensive or extensive
Substances differ from one another in:
Composition.
Atomic mass.
Atomic number
Chlorine is a part of _______ family of elements
Noble gases.
Halogen.
Alkaline earth metals.
Chemical formula is:
A combination of chemical symbols that shows the composition of a compound
The smallest unit of an element or compound
A characteristic that defines a group of substances.
Empirical is:
A sign of an element.
Based on observation or experimentation.
A way to describe a chemical reaction using chemical formulas and symbols.
Valence is:
The tendency of an atom to gain or lose electrons in reacting with other atoms
The mass of the products equals the mass of the reactants.
A change in which one or more substances are converted into new substances.
Chemical equation is:
A short and simple representation of a chemical reaction.
The smallest unit of an element or compound
The tendency of an atom to gain or lose electrons.
Symbol is:
A measure of the amount of matter.
A characteristic that defines an entire group of substances
A sign of an element.
A change in which one or more substances are converted into new substances is a:
Neutralization.
Chemical change.
Physical change.
New substances produced by a chemical reaction are:
Reactants.
Products.
Catalysts.
__________ is a way to describe a chemical reaction using chemical formulas and symbols:
A chemical equation
A physical property.
A neutralization process.
As a result of the experiments of Lavoisier, you know that in a chemical reaction, the mass of the products:
Always equals the mass of the reactants.
Is greater than the mass of the reactants.
Is less than the mass of the reactants
The chemical formula for a compound tells:
Its physical state.
What elements it contains
A(n) __________ is a substance that speeds up a chemical reaction without being permanently changed itself:
Catalyst.
Product
Reactant
__________ reactions release heat energy:
Neutralization
Endothermic
Exothermic.
__________ reactions absorb heat energy:
Exothermic.
Endothermic
Catalytic
Inorganic Chemist:
Studies carbon-based compounds, hydrocarbons, and their derivatives.
His work is based on understanding the behavior and analogues for inorganic elements and their applications.
Analyzes the chemical components of natural and artificial materials
Organic Chemist:
Studies the structure, properties, and reactions of carbon-based compounds
Works on the behavior of inorganic elements
Measures the acidity of solutions.
Analytical Chemist:
Studies the separation, identification, and quantification of chemical components.
Researches the synthesis of organic compounds.
Develops new alloys for industrial use
Lemon juice is:
Neutral.
Neutral.
Acidic
A pH of below 7 indicates:
Alkalinity.
Acidity.
Neutrality.
A pH of above 7 indicates:
Alkalinity.
Acidity
Neutrality.
A pH equals 7 indicates:
Acidic.
Neutral.
Alkaline.
Acid + _______ = Salt + Water:
Oxide.
Metal.
Base.
Acids change a litmus paper from:
Blue to Red
Red to Blue.
No change.
Which of the following gases is green in color:
Oxygen
Chlorine.
Hydrogen
The lead of a pencil mainly contains:
Graphite.
Lead
Carbon dioxide
What gas is evolved when dilute sulphuric acid is added to Zinc:
Hydrogen
Oxygen
Carbon dioxide
Translate this word into Russian: CHEMISTRY:
химия
наука
свойство
Translate this word into Russian: SCIENCE:
материя
химия
наука
Translate this word into Russian: PROPERTY
материя
свойство
отрасль
Translate this word into Russian: MATTER
синтез
материя
свойство
Translate this word into Russian: BRANCH
область
отрасль
химия
Translate this word into Russian: SYNTHESIZING:
наука
синтез
свойство
Translate this word into Russian: COMPOUND
соединение
область
свойство
Translate this phrase into Russian: ENERGY CHANGES:
преобразование энергии
химическая реакция.
тепловой процесс
Diamagnetic substances are ... by a magnetic field:
Attracted
Repelled
Unaffected
Much of the work of the biochemist is concerned with . . . and medicines:
Catalysts
Acids
Foodstuffs
... is the process whereby electrical energy causes a chemical change in the conducting medium:
Oxidation
Electrolysis
Ionization
Electrolysis is generally used as a method of deposition of metals from a .... :
Solution
Alloy
Catalyst
The theory of ... reactions is a major discovery of our time:
Redox
Chain
Combustion
Zelinsky's works formed the basis for the synthesizing of a large number of new chemical ... :
Compounds
Elements
Properties
Scientists are making a major contribution to ... of aniline dyes:
Combustion
Production
Reduction
There are more than 30 different . . . of chemistry
Branches
Properties
Reactions
