1st Semester ICP Exam Review
What is the conversion factors would you use to change 18 kilometers to meters?
1000 m/1 km Ch.1
How is 0.00025 written in scientific notation?
2.5 x 10 -4 Ch.1
If 2 grams of element X combine with 4 grams of element Y to form compound XY, how many grams of element Y would combine with 12 grams of X to form the same compound?
24 grams Ch.4
How are science and technology related?
Advances in science may lead to advances in technology and vice versa. Ch.1
What is the most important safety rule?
Always follow your teacher's instructions and textbook directions exactly. Ch.1
Which gases emit colors when an electric current is applied?
Argon and Krypton (Noble gases) Ch.5
Moving from left to right across a row of the periodic table, which of the following values increases by exactly one from element to element?
Atomic number Ch.5
What is not part of John Dalton's atomic theory?
Atoms contain subatomic particles Ch.4
Which Group 1A element is the most reactive?
Cesium (Cs) Ch.5
The law that states that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles is constant is...
Charles's law Ch.3
A member of the Boron family has three valence electrons, while a member of the nitrogen family has...
Five Ch.5
Which Group 7A elements is most reactive?
Fluorine (F) Ch.5
In which substance are the forces of attraction among the particles so weak that they can be ignored under ordinary conditions?
Gas Ch.3
In Niels Bohr's model of the atom, electrons move...
Like planets orbiting the sun. Ch.4
In Rutherford's experiment, what caused some of the alpha particles to bounce straight back from the gold foil?
Nuclei in the gold atoms. Ch.4
Which of the following is NOT one of the main ideas of physical science? -The universe is very old and very large. -Forces cause changes in motion. -Energy can be transferred form one form to another, but it can never be destroyed. -One of the main branches of natural science is biology.
One of the main branches of natural science is biology. Ch.1
What happens when the data in an investigation do not support the original hypothesis?
The hypothesis will be revised. Ch.1
Why are scientific models important?
They help visualize things that are very complex, very large, or very small. Ch.1
What is a physical or mental representation of an object or an event?
a model Ch.1
What type of change occurs when water changes from a solid to a liquid?
a phase and physical change. Ch.3
What is a statement that summarizes a pattern found in nature?
a scientific law Ch.1
If the relationship between the manipulated variable and the responding variable is a direct proportion, what will the line look like?
a straight line Ch.1
Water is a compound because it...
always has two hydrogen atoms for each oxygen atom. Ch.2
The unit for atomic mass is...
amu Ch.5
The Greek philosopher Democritus coined what word for a tine piece of matter that cannot be divided?
atom Ch.4
One twelfth the mass of a carbon-12 atom is used to define a(an)...
atomic mass unit. Ch.5
To find the number of neutrons in an atom, you would subtract...
atomic number from mass number. Ch.4
If a material contains three elements joined in a fixed proportion, it is a(an)..
compound Ch.2
Which of the following has the highest viscosity? -orange juice -milk -corn syrup
corn syrup Ch.2
What method can be used to separate parts of a liquid mixture when the entire mixture can pass through a filter?
distillation Ch.2
A substance that is made up of only of type of atom is a(an)...
element Ch.2
The temperature and volume in a closed container of gas remain constant. If the number of particles of gas is increased, the gas pressure will...
increase Ch.3
What will cause a decrease in gas pressure in a closed container?
lowering the temperature. Ch.3
The hear of fusion for water is the amount of energy needed for water to...
melt Ch.3
which of the following is not a pure substance? -oxygen -carbon dioxide -water -milk
milk Ch.2
What is a system of knowledge and the methods used to fund that knowledge?
science Ch.1
Which of the following is NOT a branch of natural science? -life science -Earth and space science -physical science -social science
social science Ch.1
Which element is found in nature only in compounds?
sodium Ch.5
According to John Dalton's observations, when elements combine in a compound...
the ratio of their masses is always the same. Ch.4
The phase change in which a substance changes form a liquid to a gas is...
vaporization Ch.3
What material is useful for making molds because it has a low melting point?
wax Ch.2
