answersLogoWhite

0

Chemistry

User Avatar

Seamus Toy

Lvl 10
2y ago
1.0
28 Reviews
Add a rating

Rate this Study Guide:

Cards in this guide (14)
What is a molecular formula

The molecular formula specifies the actual number of atoms of each element in a molecule.

Calculate the number of atoms of O contained in 16.0 pounds of O

16.0 lbs = 7,257 g of O2

Oxygen exists in the gas form as 02

7,257g O2 * 1 mol O2/ 32 g * 2 mol O / 1 mol O2 * 6.022x10^23 atoms/mol

= 2.73E26 atoms of O

What is the general form of a synthesis reaction

A+B ➝AB

What information does a solubility table give

it tells which compounds will dissolve in water

What is the mass percent composition of an element in a molecule

Percentage composition= (mass of the element/mass of the molecule)*100

The fraction of the molecule's mass that comes from the element's mass

What kind of information does the activity series of metals give us

It compares how reactive the metals are

It predicts if one metal will replace another metal in a compound

What happens to the anode in an electrochemical cell

it loses mass

What is the molar mass of H2CO3

62

Which of the following combustion reactions is balanced correctly

The correct answer is: C5H12 + 8O2 5CO2 + 6H2O.

What kind of reaction is 2C2H6 7O2 g 4CO2 6H2O

A combustion reaction

Which the following is a necessary product of a combustion reaction

heat

If the products of a reaction are NaCl and H2O what does the law of conservation of mass reveal about the reactants in the reaction

The reactants will have one Na, one Cl, one O, and two H atoms

In the reaction 2Li(s)+2H2O(l) ➝ 2LiOH(aq)+H2(g), which compound is in the gaseous state

H2

How is the mass of 1 mole of an element determined

It is the same as the element’s atomic mass, but in grams.

Related study guides

Chemistry

15 cards

Calculate the number of atoms of O contained in 16.0 pounds of O

What is the general form of a synthesis reaction

What information does a solubility table give

What is the mass percent composition of an element in a molecule

➡️
See all cards
1.0
15 Reviews

Chemistry

17 cards

Calculate the number of atoms of O contained in 16.0 pounds of O

What is the general form of a synthesis reaction

What information does a solubility table give

What is the mass percent composition of an element in a molecule

➡️
See all cards
No Reviews

Chemistry

18 cards

What is an empirical formula

What is a molecular formula

Calculate the number of atoms of O contained in 16.0 pounds of O

What is the general form of a synthesis reaction

➡️
See all cards
No Reviews

Chemistry

17 cards

What is a molecular formula

Calculate the number of atoms of O contained in 16.0 pounds of O

What is the general form of a synthesis reaction

What information does a solubility table give

➡️
See all cards
No Reviews

Chemistry

15 cards

Calculate the number of atoms of O contained in 16.0 pounds of O

What is the general form of a synthesis reaction

What information does a solubility table give

What is the mass percent composition of an element in a molecule

➡️
See all cards
No Reviews