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aleksandr82 [10.1K]
3 years ago
5

Starting from position 3,5 go west 7 , then south 7, then east 4 what’s your ending point?

Chemistry
1 answer:
Vsevolod [243]3 years ago
5 0

Answer:

-1, -2

Explanation:

West is left south is down east is right

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How many moles are in 4.818 x 1024 chloride ions
erastovalidia [21]

Answer:

<h3>The answer is 8.00 moles</h3>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L}  \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{4.818 \times  {10}^{24} }{6.02 \times  {10}^{23} }  \\  = 8.00332225...

We have the final answer as

<h3>8.00 moles</h3>

Hope this helps you

4 0
3 years ago
What is 57.048 rounded to three significant figures?
AnnyKZ [126]
57.0 is it rounded to three sig figs. You count three spaces then round from there, which would be the zero and you would round down because the four is there.
4 0
4 years ago
The high level of pollution in earth's is a planet problem
svet-max [94.6K]

Answer:

According to the World Economic Forum, air pollution was found to be the largest current environmental threat to our public health. Up to 52,000 people die every year in the United States alone because of exposure to emissions from power plant emissions.

3 0
3 years ago
At a certain temperature the reaction
lyudmila [28]

The concentration of carbon monoxide at equilibrium is 0.209 M.

<h3>Concentration of each gas</h3>

CO2 = 2 mol/5 L = 0.4

H2 = 1.5 mol/5L = 0.3

<h3>ICE table</h3>

Create ICE table as shown below

        CO2(g)    +     H2(g) ↔       CO(g)    +     H2O(g)

I          0.4               0.3                0                  0

C        - x                 - x                 x                   x

E        0.4 - x           0.3 - x           x                   x

Kc = [CO][H₂O] / [CO₂][H₂]

2.5 = (x²)/(0.4 - x)(0.3 - x)

x² = 2.5(0.4 - x)(0.3 - x)

x² = 2.5(0.12 - 0.7x + x²)

x²  = 0.3 - 1.75x + 2.5x²

0 = 1.5x² - 1.75x + 0.3

solve the quadratic equation using formula method;

x = 0.209

Thus, the concentration of carbon monoxide at equilibrium is 0.209 M.

Learn more about concentration here: brainly.com/question/17206790

#SPJ1

5 0
2 years ago
Which elements have electron configurations that end in ns2np5?
Arada [10]
Last level of atoms of these elements has 2+5= 7 electrons. These elements are located in the 17th group of the Periodic Table, and they are called halogens.
4 0
3 years ago
Read 2 more answers
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