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Tema [17]
3 years ago
7

How does a lithium cation compare to a lithium atom?

Chemistry
1 answer:
ELEN [110]3 years ago
6 0
A lithium cation in terms of atomic/ionic size is smaller than a Lithium atom.
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28.7 l of propane, c3h8, are consumed in a combustion reaction. how many grams of water are produced?
lora16 [44]
The chemical reaction would be:

C3H8 + 5O2 = 3CO2 + 4H2O

For this case, we assume that gas is ideal thus in every 1 mol the volume would be 22.41 L. We calculate as follows:

28.7 L C3H8 ( 1 mol / 22.41 L ) ( 4 mol H2O / 1 mol C3H8 ) ( 18.02 g / mol ) = 92.31 g H2O produced

Hope this answers the question.
7 0
3 years ago
Ava threw a hamster at her sister the other day she used 12N of force to accelerate the hamster at 8m/s2.what was the mass of th
xenn [34]

<u>We are given:</u>

The force applied on the poor hamster (F) = 12 N

Acceleration of the poor Hamster (a) = 8 m/s²

<u>Solving for the mass of the Poor Hamster:</u>

From newton's second equation of motion, we know that:

F = ma

<em>replacing the given values</em>

12 = 8 * m

m = 12/8 kg

m = 3/2 kg

The poor Hamster weighs 3/2 kg

8 0
2 years ago
Where y and x are concentrations of the peptide in the extract and raffinate, respectively in g/L. It is desired to extract at l
zubka84 [21]

Answer:

sadjf akasj fk a

sadkf

ldj

a d i

i d o n t             k n o w

Explanation:

6 0
3 years ago
I need help answering this question
ohaa [14]
The correct answer is c because enzymes increase the rate of all biochemical processes
4 0
3 years ago
Read 2 more answers
How many moles of fe2o3 will be produced from 18.0 g of fe assuming o2 is available in excess
Advocard [28]

Answer:

0.161moles

Explanation:

Given parameters:

Mass of Fe  = 18g

Oxygen gas is in excess

Unknown:

Number of moles of Fe₂O₃ produced  = ?

Solution:

To start with, let us write a chemically balanced equation before proceeding to understand the nuances of this problem.

              4Fe       +    3O₂       →          2Fe₂O₃

In the equation above above, 4 mole of iron combined with 3 moles of oxygen gas to  2 moles of Fe₂O₃.

In solving this problem, we can identify that Fe is the limiting reactant since we have been told oxygen gas is in excess. The suggests that the extent to which the product is formed and the reaction proceeds hinges on the amount of Fe we have.

It is best to work from the given, or known reactant to the unknown

The known in this scenario is the mass of Fe. Let us find the number of moles of this specie;

        Number of moles of Fe  = \frac{mass}{molar mass}

              Molar mass of Fe  = 56g/mol

      Number of moles  = \frac{18}{56}   = 0.32mol

Using this known number of moles of Fe, we can relate it to that of the unknown amount of the product and obtain the number of moles.

           4 moles of Fe produced 2 moles of Fe₂O₃

         0.32 moles of Fe will produce \frac{0.32 x 2}{4}   =  0.161moles

8 0
3 years ago
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