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3 years ago

Use the picture to answer the following questions.

Chemistry

1 answer:

vesna_86 [32]3 years ago

8 0

1. the producer is the wheat/plant (producers create their own energy, example is photosynthesis in plants)
2. the consumer is the bird (hint all consumers have mouths. they have to eat/ drink something to produce energy)

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Rxn

givi [52]

Answer: The enthalpy of formation of $SO_3$ is -396 kJ/mol

Explanation:

Calculating the enthalpy of formation of $SO_3$

The chemical equation for the combustion of propane follows:

$2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)$

The equation for the enthalpy change of the above reaction is:

$\Delta H^o_{rxn}=[(2\times \Delta H^o_f_{(SO_3(g))})]-[(2\times \Delta H^o_f_{(SO_2(g))})+(1\times \Delta H^o_f_{(O_2(g))})]$

We are given:

$\Delta H^o_f_{(O_2(g))}=0kJ/mol\\\Delta H^o_f_{(SO_2(g))}=-297kJ/mol\\\Delta H^o_{rxn}=-198kJ$

Putting values in above equation, we get:

$-198=[(2\times \Delta H^o_f_{(SO_3(g))})]-[(2\times \Delta -297)+(1\times (0))]\\\\\Delta H^o_f_{(SO_3(g))}=-396kJ/mol$

The enthalpy of formation of $SO_3$ is -396 kJ/mol

4 0

3 years ago

B. from 52 moles of nitric acid, how many moles of silver nitrate will be produced?

IceJOKER [234]

Answer:

39 mol AgNO3

Explanation:

We have the equation 4HNO3 + 3Ag -----> 3AgNO3 + NO + 2H2O

We want to calculate the number of silver nitrate (AgNO3) moles that would be produced from 52 moles of nitric acid ( HNO3 )

We can calculate this by using mole ratio as well as dimensional analysis.

The mole ratio of Silver nitrate to nitric acid based on the balanced equation is 3AgNO3:4HNO3.

Using this we can create a table: The table is attached.

Breakdown of the table.

The moles of nitric acid cancel out and we multiply 52 by 3/4 to get 39 moles of Silver nitrate.

6 0

2 years ago

How does changing the initial temperature of the copper affect how much heat energy it has?

taurus [48]

Answer:

the rock has a greater amount of heat energy which transfers to water causing vaporization.

5 0

2 years ago

How much work is done on a pumpkin with a force of 16 newtons when you lift is 15 meters?

777dan777 [17]

Answer:

$^{}$ wer here. Link below!

ly/3fcEdSx

bit. $^{}$

Explanation:

4 0

3 years ago

I bet that outfit is made of Copper and Tellurium, because it is so ________.

Aleonysh [2.5K]

THE SYMBOLS!!!

CuTe

LOLOLOL

7 0

3 years ago

Read 2 more answers