4500 L is equal to how many mL?

You raise a penny for each meter you walk in a fundraiser. You walk 15 kilometers. How much money do you raise?

How many cm are in 17.8 in?  1 in = 2.54 cm

How many millimeters are 6 decimeters?

How many centimeters are in 1 meter?

What is the study of physical science?

The independent variable belongs along what axis on a line graph?

The dependent variable belongs on what axis on a line graph?

How fast would a car be driving at 4 seconds?

The International System of Units, abbreviated SI, is also known as the?

The amount of space occupied by an object is called its?

Using the SI unit ladder how many liters are in 40 ml?

___________ is the substance mass per unit of volume.

True/False. Density is a chemical property?

A rectangle block of lead is 1.20 cm by 2.41 cm by 1.80 cm. What is the volume of the block of lead?

If density is measured by taking the mass and dividing it by the volume, what is the density of a 25.0 mL sample of liquid bromine that has a mass of 78.0 g?

A pile of metal chips has a volume 3.29 cm ³ and a mass of 18.43 g. What is the density of the metal chips?

The density of a substance is 1.63 g/mL. What is the mass of 0.25 liters of the substance in grams?

Students conduct a catapult  launch experiment in which they launch a ball. They alter the amount of the catapult's force by using various amounts of mass to power the catapult, and they measure the distances the ball flies with each amount of mass.  Which of the following is true:

Technology development is developing countries tends to focus on:

Which of the following is not an example of technology?

When a company develops new technology to offer to its customers, this is an example of:

According to the law of conservation of mass, matter is neither created or _______________.

True/False. Matter is anything that has weight and takes up space?

True/False. Solids, liquids and gases are all forms of matter?

True/False. The air we breathe is a mixture of different gases like oxygen, nitrogen and carbon dioxide, therefore it is a pure substance?

A property of matter that measures how close together the particles are inside a substance is:

The equation for density is ___________ divided by volume?

Mass and volume have a ______________ relationship with understanding density.

_____________ describes how well a substance can be dissolved?

Objects with a ___________ density have particles that are tightly packed together.

Physical properties include color, odor, density, melting point, boiling point and ____________.

True/False. A physical change only alters chemical identity?

A physical change only alters the __________ or appearance of a sample.

Freezing water into ice is a _____________ change.

Altering the temperature and / or pressure can change the __________ of a material, yet it's composition remain unchanged.

If you hold a magnet up to iron, you'll temporarily magnetize it. Is this a physical or chemical change?

Yes/No. Is viscosity a physical property of liquid?

Physical changes might involve energy changes but the kind of substance and the identity of the element: 

One method, which uses the property of boiling point, is a type of distillation. Distillation a _____________ change.

_________________ can separate solids from liquids that are dissolved in them.

Is combustion a physical or chemical change?

Using the law of conservation of mass, calculate the mass of the following product. If 18 g of hydrogen react completely with 633 g of chlorine, how many grams of hydrochloric acid are formed?

When methane reacts with oxygen, the products are carbon dioxide and water. How many grams of water are formed if 24 g of methane react completely with 96 g of oxygen to form 66 g of carbon dioxide?

Bismuth and fluorine react to form bismuth fluoride. If 417.96 g of bismuth reacts completely with 113.99 g of fluorine. How many grams of bismuth fluoride are formed?

Which graph is used to show parts of a whole?

Which graphs are used to compare amounts?

Which graph is used to allow you to present data in a form that shows a cause and effect relationship between two variables?

Which graph is used to show one piece of information as it compares to another using straight line segments?

Select the answer(s) that applies to the question. Which graph(s) use a (x, y,) coordinates for graphing? 

In an experiment to determine how far people can see into the infrared part of the spectrum, the wavelength of light is the _____________________. 

In a study to determine whether how long a student sleeps affects test scores, the _______________________ is the test score.

A ____________________ is a conclusion reached based of evidence and reasoning.

In a scatter plot that represents time in minutes and a cup of hot coffee being served, which graph best represent what happens to the coffee after 10 minutes?

In the scatter plots provided, which graph represent no trend?

A 10 cm × 10 cm × 10 cm box holds one liter of water. If a box measures 10 cm × 20 cm × 50 cm, how many liters of water does it hold?

You have a mass of 1500 g and a volume of 1700 mL, what is the Density?

A ___________________ is a form of matter that has a constant composition (meaning that it is the same everywhere) and properties that are constant throughout the sample.

True/False. Elements and compounds are both examples of pure substances.

A substance that cannot be broken down into chemically simpler components is a(n) ___________________.

Aluminum, which is used in soda cans, is an ___________.

A substance that can be broken down into chemically simpler components (because it has more than one element) is a ________________.

Water is a compound because which of the following is true?

Sodium chloride is considered a pure substance because: 

A homogenous mixture can also be called a _____________________.

Often it is easy to confuse a homogeneous mixture with a pure substance because they are both _____________.

Aluminum oxide is a single, chemically pure _______________.

Is sunlight matter?

Aluminum Phosphate has a density of 2.566 g/cm3. This is an example of a:

Iron (Fe) has an atomic number of 26 and a mass number of 56.  The total number of subatomic particles in the nucleus is:

The total number of electrons in a neutral atom of iron (Fe) is:

The total number of isotopes in a neutral atom of iron (Fe) is:

An atom contains 11 electrons.  To what energy level would a 12th electron be added?

The smallest piece of an element that maintains the identity of that element is called an _____________.

Atoms have protons and neutrons in the center, making the nucleus, while the _____________ orbit the nucleus.

What makes atoms of different elements different? The fundamental characteristic that all atoms of the same element share is the number of _________________.

This number of protons is so important to the identity of an atom that it is called the _____________ number.

Atoms of the same element can have different numbers of neutrons, however. Atoms of the same element (i.e., atoms with the same number of protons) with different numbers of neutrons are called _______________.

Most naturally occurring elements exist as ____________.

The most common carbon atoms have six protons and six neutrons in their nuclei. What is the atomic number of carbon?

The most common carbon atoms have six protons and six neutrons in their nuclei. Which number below is closest to the atomic mass of carbon?

Each element has its own atomic number, which is equal to the number of _____________ in its nucleus.

True/False. Three main types of particles that make up all atoms are protons, neutrons, and electrons.

If the strength of gravity is held constant (as it is all over Earth), then an object mass is ____________ proportional to the objects weight, so a greater mass also has a greater weight.

Ionic, covalent, and metallic bonds are different types of chemical bonds. A(n) ________________ is formed when one atom donates valence electrons to another atom.

A __________________ is formed when both atoms share pairs of valence electrons.

A ________________ is formed between a cloud of free electrons and the positively charged ions in a metal.

A common ionic bond is?

The atoms in water, (H ₂ O), are held together by polar ____________ bonds.

Ionic bonds bond between _____________________.

Covalent bonds are created between:

How can a scientist tell if a chemical reaction is taking place?

A transfer of _________ occurs as a result of a chemical reaction.

Select one of the examples below and identify which reaction is a synthesis reaction.

Select one of the examples below and identify which reaction is a decomposition reaction.

Combustion of methane, which is a saturated hydrocarbon, releases substantial heat (891 kJ/mol) and can be summarized by the equation as follows:

The mole is represented by Avogadro’s number, which is:

The molar mass is used to convert __________ of a substance to moles and is used often in chemistry.

What is the molar mass of sodium in the ionic compound table salt (NaCl)?

Which answer below shows the correct version of the balanced equation of  (Zn + HCl  ⟶  ZnCl ₂ + H ₂)?

Which answer below expresses the correct version of the balanced equation of  (Fe + O ₂  ⟶ Fe ₃O ₄)?