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2 years ago

Consider sodium oxide, Na2O. Choose the best explanation for the subscript, 2, from the list provided.

Chemistry

2 answers:

kirill [66]2 years ago

6 0

<span>There are two atoms of sodium and one atom of oxygen. lmk if its right or wrong</span>

Delicious77 [7]2 years ago

4 0

Answer:

its B) There are two atoms of sodium and one atom of oxygen.

then its 61.98 g/mol

Explanation:

just took it on edge. hope this helps

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What is the pressure of 2.20 mol of a gas stored in a 4.5 L container at a temperature of 170 K? (Use PV=nRT and R = 8.314 L∙kPa

algol13

Answer:

I don't know how can i do

Explanation:

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7 0

2 years ago

3. If 90.0 grams of barium chloride react with sulfuric acid, how many

PtichkaEL [24]

Answer:

The answer to your question is 100.8 g

Explanation:

Data

mass of Barium chloride = 90 g

mass of Barium sulfate = ?

Balanced chemical reaction

BaCl₂ + H₂SO₄ ⇒ BaSO₄ + 2HCl

Process

1.- Calculate the molar mass of BaCl₂ and BaSO₄

BaCl₂ = 137.3 + (2 x 35.5) = 208.3g

BaSO₄ = 137.3 + 32 + (16 x 4) = 233.3g

2.- Use proportions to find the mass of BaSO₄

208.3 g of BaCl₂ --------------------- 233.3 g of BaSO₄

90 g of BaCl₂ --------------------- x

x = (90 x 233.3) / 208.3

x = 20997/ 208.3

x = 100.8 g

3.- Conclusion

There will be produced 100.8 g of BaSO₄

4 0

2 years ago

Which sentence best describes an igneous intrusion

Ulleksa [173]

What are the sentences?
It would help to see the sentences.

5 0

2 years ago

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How many mL will a 0.205 mole sample of He occupy at 3.00 atm and 200 K? Report your answer to the nearest mL.

Tcecarenko [31]

1.1214 mL will a 0.205-mole sample of He occupy at 3.00 atm and 200 K.

<h3>What is an ideal gas equation?</h3>

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

Using equation PV=nRT, where n is the moles and R is the gas constant. Then divide the given mass by the number of moles to get molar mass.

Given data:

P= 3.00 atm

V= ?

n=0.205 mole

R= $0.082057338 \;L \;atm \;K^{-1}mol^{-1}$

T=200 K

Putting value in the given equation:

$\frac{nRT}{P} =V$

$V= \frac{0.205 \;mole\;0.082057338 \;L \;atm \;K^{-1}mol^{-1} X 200}{3 \;atm}$

V= 1.1214 mL

Learn more about the ideal gas here:

brainly.com/question/27691721

#SPJ1

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1 year ago

Why don’t these gases tend to form chemical bonds?

erik [133]

If you’re talking about noble gases, the answer would be A. Since noble gases already have 8 electrons, they don’t tend to form chemical bonds. And elements need just 8 electrons on there shells to be stable.

6 0

2 years ago