Chemistry Chapters 5-7

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The reaction of carbon with oxygen to produce carbon monoxide is an example of which class of reaction 2C +O2------> 2CO

combination reaction

According to naming rules, the types of compound that use prefixes in their names are

covalent compounds

Fe2(SO4)3 is called

iron (III) sulfate

How many electrons will aluminum gain or lose when it forms an ion

lose 3

To form an ion, a sodium atom

loses one electron

In ionic compounds __________ lose their valence electrons to form positively charged _________

metal, cactions

A __________ is the smallest neutral unit of two or more atoms held together by a covalent bond

molecule

In a covalently bonded molecule, the number of electrons that an atom shares with others is usually equal to the number of electrons...

needed to give it a noble gas arrangement

Avogadro's number is the number of ________

particles in 1 mole of substance

A group of covalently bonded atoms that has an overall electrical charge is called a(n)

polyatomic ion

The force of gas particles against the walls of container is called

pressure

Double and triple bonds form because

single covalent bonds do not give all of the atoms in the molecule eight valence electrons

A chemical equation is balance when

the number of atoms of each element is the same in reactants and products

The VSEPR theory allow us to determine

the shape of a molecule

3.00 moles of NO2 have a mass of

138 g

What is the molar mass of copper (II) sulfate, CuSO4

159.6 g

What is the molar mass of sodium phosphate, Na3Po4

164.0 g

Elements in group 2a (2) of the periodic table forms ions with a charge of

2+

One mole of neon has a mass of

20.2 g

The molar mass of potassium is

39.1 g

A temperature of 125 C is the same as

398 K

One mole of particles of any substance contains how many particles

6.02 x 10^23

How many grams of glucose (C6H12O6) are in 3.55 moles of glucose

639 g

Which measurement describes the pressure of gas

725 mm Hg

The molar mass of C3H8O2

76.0 g

The unit of 1 atmosphere used to describe the pressure of a gas is equal to

760 mm Hg

How many grams of Fe2O3 are there is 0.500 mole of Fe2O3

79.8 g

4.00 moles of sodium have a mass of

92.0 g

In a molecule with covalent bonding...

atoms are held together by sharing electrons

A polar covalent bond is found in which of these compounds

H2O

Ionic bonding is expected in which of these components

KF

How many moles of K2 SO4 are in 15.0 g of K2So4

0.0861 moles

0.100 mole of lithium weighs

0.694 g

How many moles of carbon atoms are there in 0.500 mole of C2H6

1.00 mole

What is the molar mass of sodium phosphate

N

Which of the following is NOT part of the kinetic theory of gases

There is very little empty space in a gas

The following reaction takes place when an electric current is passed through water. It is an example of a _________ reaction 2H2O ----------->2H2 + O2 electricity

decomposition reaction

How many electrons will chlorine gain or lose when it forms an ion

gain 1

An anion always

has a negative charge

An ionic compound

has a net charge of zero


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