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photoshop1234 [79]
3 years ago
11

Determine if the equation is endothermic or exothermic examples

Chemistry
1 answer:
Fittoniya [83]3 years ago
6 0
There are a couple of ways todetermine if a reaction is exothermic or endothermic. Endothermic meaning that heat is added to the reaction to make the reactants interact and exothermic meaning heat is released during the reaction between the two reactants.


In endothermic reactions you can find a triangle above the arrow.
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Answer:

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Explanation:

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Which of the following is true about elements?
kondor19780726 [428]

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The first one

Explanation:

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35.5 moles of lithium fluoride is dissolved in 65 L of solution
kkurt [141]

Answer:

Explanation:

L

=

1.10

L

of solution

Explanation:

The Molarity

M

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M

=

m

o

l

L

For this question we are given the Molarity 0.88M

We are told the solute is a 25.2 gram sample of LiF, Lithium Fluoride

We can convert the mass of LiF to moles by dividing by the molar mass of LiF

Li = 6.94

F = 19.0

LiF = 25.94 g/mole

25.2

g

r

a

m

s

x

1

m

o

l

25.94

g

r

a

m

s

=

0.97

moles

Now we can take the the molarity and the moles and calculate the Liters of solution

M

=

m

o

l

L

M

L

=

m

o

l

L

=

m

o

l

M

L

=

0.97

m

o

l

0.88

M

L

=

1.10

L

of solution i just did look at my papaer

3 0
3 years ago
What attractive force draws in surrounding electrons for chemical bonds?
Dmitrij [34]

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Thus, the attractive forces which draws in surrounding electrons for chemical bonds is electronegativity.

3 0
3 years ago
Read 2 more answers
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Scilla [17]

Answer:

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Explanation:

in the solid state the material will has a fixed shape and volume whatever the container that contains it

where in liquid the shape will be different depending on the container

and in gas state the shape and volume are not definite

3 0
2 years ago
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