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Chemistry

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Leanna Walker

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3y ago
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Cards in this guide (18)
What is an empirical formula

The chemical formula in which the subscripts are given in the smallest ratio.

An organic compound that is not soluble in water

an organic compound that is not soluble in water

What is a molecular formula

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

How do intermolecular forces affect the boiling point of a liquid

The stronger the forces, the more heat that must be added to boil the liquid

What information does a solubility table give

it tells which compounds will dissolve in water

What is the reaction for Na2SO4 BaCl2

Na2SO4 + BaCl2 ---> 2NaCl + BaSO4 :)

How much mass does 1 mol of o2 gas have

15.99 x 2 g

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 is the molarity of 4 mol of NaOH dissolved in 2 L of water

2 m

How does the activity series of metals tell which reactions will occur

Metals higher in the series will replace metal ions in solution that are lower in the series

Why is it useful to express a number in scientific notation

It can shorten the expression into a number that can more easily be understood by giving an order of magnitude to the number. For example, would you write 0.00000000000000000045 or would you write 4.5 X10-19.

How many Cl atoms are in ZnClO32

Zn(ClO3)2 has two chlorine atoms

What is the net ionic equation for the reaction 2kohaq h2so4aq 2h2ol k2so4aq

OH- 2H+ -> 2H2O(I)

ywwww

:)

What is a following is a decomposition reaction

CaCO3 -> CaO + CO2

How would 0.000000728 be written in scientific notation

It is 7.28*10^-7 in scientific notation

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.

The only reactants in a reaction were Zn and HCI. What does the law of conservation of matter say about the products

The product will contain only Zn, H, and CI. -Apex

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