Chapter 1.3: Matter, Mass, and Weight

states

Phases of matter are also referred to as:

weight ; mass

________________ depends on ________________.

17.5 g

11.5 grams of sodium metal are placed in a container with excess chlorine gas. Once the reaction is complete, 29.0 grams of sodium chloride are measured. What mass, in grams, of chlorine gas reacted?

6 g

6 grams of salt are dissolved into 35 ml of a solution. After the solution is heated and boiled away, how many grams of salt do you expect to remain?

18 g

A jeweler is creating a unique ring, and melts 16 g of silver in a sealed environment. Once the silver hardens, this jeweler sculpts the ring, reheats it, and adds 2 g of nickel. He delivers the ring to his client, who does not like it and asks him to remake it. The jeweler reheats the ring and tries again. What is the total mass of the ring at this point?

gas

A substance that has no fixed shape or volume is a:

50 g

An art student takes a ball of clay that weighs 50 grams, and rolls it into a long thin tube only 1 centimeter thick. What will be the mass of the tube of clay in grams?

100 g

At a jewelry factory, 100 grams of gold are melted down into a liquid. After melting, what mass of gold is present?

newtons

Despite the units frequently seen on laboratory scales, the most appropriate unit below for quantifying weight is _______.

the same mass as water

If you boil a sample of water, the steam that results will have:

earth

If you dropped a 10 kilogram rock on the Earth and then again on the Moon, where would it fall faster?

kilograms

Mass is measured in:

nuclear reactions

The Law of Conservation of Matter states that during a change, the total mass remains constant; however, there are deviations from this law. In which of the following would deviations from the Law of Conservation of Matter be easiest to measure?

weight ; mass

The ______ of an object changes by location, while the ______ of an object does not change by location.

Burning wood for a fire Freezing water into ice cubes The decomposition of N2O2 into NO2 and O2

The following follow the law of the conservation of matter

the mass of products is equal to the mass of the reactants

The law of conservation of matter implies that in a reaction:

126.0 g

Through the complete electrolysis of a sample of pure water, a student collects 14.0 grams of hydrogen gas and 112.0 grams of oxygen gas. What mass of water (in grams), if it reacted completely, was initially present? (The electrolysis of water is the use of an electric current to decompose it into its component elements.)

gravitational field

Weight is a property given to objects by virtue of their position in a(n)

the amount of matter in the object

What determines the mass of an object?

the amount of force exerted on an object due to gravity

What is weight?

deep space

Where would you be "weightless"?

a snowman melts into a puddle of water salt dissolves into a cup of water

Which of the following demonstrate(s) the law of conservation of matter? (Select all that apply)

Matter can neither be created nor destroyed.

Which of the following is a true statement about matter in a chemical reaction?

mass

Which of the following is measured in grams or kilograms?

weight

Which of the following is measured using Newtons (a unit of force)?

weight = mass x gravity

Which of the following is the correct relationship between weight and mass?

liquid

Which physical form of matter has a definite volume, but no definite shape?

plasma gas

Which physical form(s) of matter have neither a definite volume nor definite shape?

mass ; weight

_______ is a measurement of the amount of matter in an object, while ________ is the measurement of gravity's pull on an object.