chem stu guide 1

What is the study of matter and the changes that it undergoes?

When a scientist explores nature simply to learn more about the world in which we live, he is performing

science.

What do we call the perspective from which we see and interpret all of life?

Scientific models may be expressed as

Physical, descriptive, or mathematical representations that characterize a system or explain a phenomenon are called scientific

All scientists approach their work with a certain (blank) , which is the perspective from which they see and interpret all of life.

For a model to be useful it must

An idea assumed to be true that is based on one's worldview is

Which of the following statements shows a naturalistic worldview?

The Creation Mandate is given in the book of

Which of the following activities can be a fulfillment

of the Creation Mandate?

evaluate the statement “scientific models reveal what is true about the world”

Which of the following is not a way that Christians are guided by ethical decision making in the study of chemistry?

The mass of a crystal as measured on a balance would be an example of (blank) data.

Information that consists of descriptions and not numerical values is called (blank) data.

Which of the following is a type of quantitative data?

Scientific inquiry begins with

A scientist observes and then recognizes that there is a scientific problem or (blank) that needs to be solved.

What is a scientific hypothesis?

What is the name given to the process that scientists use to identify a problem or question, form a hypothesis, test it, and evaluate the results?

Scientists classify matter on the basis of its physical and (blank) properties.

Which of the following is an example of a physical change?

A rock weighs more than a piece of foam, even if the foam is twice the volume of the rock. What property of matter does this illustrate?

Which term describes the ability of a material to be drawn into a wire?

Copper is used more often than aluminum for electric wires. More than anything else, this suggests that copper is (blank) than aluminum.

The gold that covers the 650 m2 dome of the Colorado state capitol building could be crumpled into a ball less than 7 cm in diameter. What property of matter does this illustrate?

A material that has a high level of malleability will probably have a high level of

The amount of matter packed into a given volume determines its

A log burns, creating heat, which evaporates water in a kettle. This is an example of

All of matter can be divided into two categories: pure substances and

A homogeneous mixture is also called a(n)

The air we breathe is classified as

What is one way that a mixture cannot be separated?

A pure substance that consists of only one kind of atom is a(n)

Iron (Fe) is a

Oxygen (O2) is a

. Pure water is a

Chemical formulas represent

In the formula Mg(OH)2, the numeral 2 is called a

How many hydrogen atoms are in the chemical formula H2O?

How many atoms of oxygen are there in a molecule of penicillin G (C16H18N2O4S)?

How many atoms of sulfur are present in Al2(SO4)3?

How many atoms of oxygen are present in Al2(SO4)3?

What unit is used to measure both energy and work?

Which of the following is not one of the six common forms of energy?

The first law of thermodynamics is also called the law of  .

The measure of the dispersal of energy in a system is known as

The energy in a system becomes less usable when energy

Heat is the term used for the movement of (blank) energy.

Chemical and physical processes that absorb thermal energy are called (blank) processes.

The freezing point of nitrogen is –210 °C. What is the temperature in kelvins?

Dry ice has a temperature of 196 K. What is the temperature of dry ice on the Celsius scale?

The kinetic-molecular theory is a model that describes the (blank) of particles in matter.

Which of the following is not a characteristic of solids?

Which form of matter has fast-moving and widely spaced particles?

Which form of matter best describes molten lead?

Which state of matter exists in stars?

A substance can experience a change of state as (blank) energy is added to or removed from it.

After boiling water for a long period of time, you notice that the water level has decreased, indicating that

(blank )has occurred.

When water vapor forms dew on the grass, (blank) has occurred.

The disappearance of dry ice left out in a dish is an example of

Physical properties can be measured or observed without changing the actual composition of the material. true or false?

A compound is a pure substance that cannot be broken down into simpler substances by ordinary chemical means. true or false?

Which of the following was a belief that matter was made of separate, discrete particles?

Who was the first to refer to matter as being made of discrete particles?

Which of the following refers to a relationship in which masses of elements can combine to form a particular ratio that can be reduced to small, whole numbers?

The fact that any sample of water contains 8 g of oxygen for every 1 g of hydrogen illustrates

Which of the following chemists' experimentations with compounds eventually led to the formulation of the law of definite proportion?

Who concluded that atoms of different elements have different masses and thereby helped to advance the study of chemistry?

J. J. Thomson's cathode rays were composed of

J. J. Thomson concluded that every atom contained small, (blank) particles.

Who formulated a new atomic model because of discoveries made during an alpha particle experiment?

The experiment in which alpha particles were deflected by gold foil was conducted by

Rutherford's experiments with alpha particles helped scientists to understand more about the inner parts of the

Who first identified and named the proton?

The number of protons in an atom's nucleus is its

Who is credited with the discovery of the neutron?

Changes were made to Rutherford's atomic model to include the addition of

In atomic notation, Z represents the number of (blank) in an atom.

Whose work helped to explain line spectra?