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3 years ago

Can y’all please help me with these 2? I had surgery and missed this entire unit and it’s due Monday

Chemistry

1 answer:

eduard3 years ago

4 0

Mark Brainliest please

Answer :

1. It will shift left ( as heat is added)

2. It will shift right ( as it cooled down)

Explanation :

For an exothermic reaction, heat is a product. Therefore, increasing the temperature will shift the equilibrium to the left, while decreasing the temperature will shift the equilibrium to the right.

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Which of the following statements is true??

iren [92.7K]

Tsunamis are caused by seismic waves

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4 years ago

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus.

VikaD [51]

Answer:

The second option

Explanation:

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3 years ago

Read 2 more answers

Select all that apply. Using your periodic table of the elements which chemical symbols indicate an element?

tatuchka [14]

Answer:

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Explanation:

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3 years ago

How many liters of carbon dioxide will be produced when 89.5 L of ethane are burned? (One mole of any gas occupies 22.4 L under

yan [13]

Answer:

179 L of CO2

Explanation:

Given the equation of the reaction;

C2H6(g) + 7/2 O2(g) -------> 2CO2(g) + 3H2O(g)

Now 1 mole of ethane yields 2 moles of CO2 from the balanced reaction equation

1 mole of a gas occupies 22.4 L volume so,

22.4 L of ethane yields 44.8 L of CO2

89.5 L of ethane yields 89.5 * 44.8/22.4 = 179 L of CO2

4 0

3 years ago

3. Determine the moles of sodium, Na, containing 7.9x1024 atoms.

-BARSIC- [3]

Answer:

12.7mol Na.

Explanation:

Hello there!

In this case, according to the concept of mole, which stands for the amount of substance, we can recall the concept of Avogadro's number whereby we understand that one mole of any substance contains 6.022x10²³ particles, for the given atoms of sodium, we can calculate the moles as shown below:

$7.9x10^{23}atoms*\frac{1mol}{6.022x10^{23}atoms} \\\\$

Thus, by performing the division we obtain:

$12.7molNa$

Regards!

8 0

3 years ago