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LekaFEV [45]
3 years ago
5

-QUESTION 6-

Chemistry
2 answers:
Dmitrij [34]3 years ago
8 0

Answer:

A. The population size is increasing

Explanation:

Looking at the graph upon the x-axis we see the blue line at an increasing direction to the right. That means the population is increasing at the 1 year mark.

alexandr402 [8]3 years ago
4 0
The answer would be C essentially
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Which of the following scientists discovered the election?
Pie
None of the above the answer would be D
7 0
4 years ago
Convert 300.00 dL to L.
Bezzdna [24]

Answer:

Ans:30 litres

Explanation:

1l=10dl

300dl=300/10

=30 dl

7 0
3 years ago
Hi please help me i only have 2 days to do all of this
Naily [24]
None of them really sound like the answer, but my best guess would probably be the second one. It doesnt give much info.


7 0
3 years ago
Read 2 more answers
Outline the steps needed to determine the limiting reactant when 30.0 g of propane, C3H8, is burned with 75.0 g of oxygen.
kumpel [21]

Answer : The limiting reactant is O_2

Explanation : Given,

Mass of C_3H_8 = 30.0 g

Mass of O_2 = 75.0 g

Molar mass of C_3H_8 = 44 g/mole

Molar mass of O_2 = 32 g/mole

First we have to calculate the moles of C_3H_8 and O_2.

\text{ Moles of }C_3H_8=\frac{\text{ Mass of }C_3H_8}{\text{ Molar mass of }C_3H_8}=\frac{30.0g}{44g/mole}=0.682moles

\text{ Moles of }O_2=\frac{\text{ Mass of }O_2}{\text{ Molar mass of }O_2}=\frac{75.0g}{32g/mole}=2.34moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

C_3H_8+5O_2\rightarrow 3CO_2+4H_2O

From the balanced reaction we conclude that

As, 5 mole of O_2 react with 1 mole of C_3H_8

So, 2.34 moles of O_2 react with \frac{2.34}{5}\times 1=0.468 moles of C_3H_8

From this we conclude that, C_3H_8 is an excess reagent because the given moles are greater than the required moles and O_2 is a limiting reagent and it limits the formation of product.

Therefore, the limiting reactant is O_2

5 0
3 years ago
Is 2Na+Cl2=2NaCl a balanced chemical equation
lilavasa [31]

Hey there!

2Na + Cl₂ → 2NaCl

This is a balanced chemical equation.

There are 2 atoms of sodium (Na) on the left, and 2 atoms of sodium (Na) on the right.

There are 2 atoms of chlorine (Cl) on the left, and 2 atoms of chlorine (Cl) on the right.

This means the equation is balanced since there are the same amount of each element on both sides.

Hope this helps!

3 0
3 years ago
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