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Eva8 [605]
3 years ago
9

Pb + Fe(SO4) =Pb(SO4) + Fe what type of reaction is this ?

Chemistry
1 answer:
VikaD [51]3 years ago
3 0

Answer:

Single replacement

Explanation:

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In the lab, a 156 g sample of unknown compound KClOx was completely decomposed to produce 50.4 L of O2 (g) at STP and an unknown
aleksandr82 [10.1K]

Answer:

2

Explanation:

Step 1: Write the generic decomposition reaction

KClOₓ ⇒ KCl + O₂

Step 2: Calculate the moles of O₂

At STP, 1 mole of an ideal gas occupies 22.4 L.

50.4 L × 1 mol/22.4 L = 2.25 mol

Step 3: Calculate the mass corresponding to 2.25 moles of O₂

The molar mass of O₂ is 32.00 g/mol.

2.25 mol × 32.00 g/mol = 72 g

Step 4: Determine the value of x

Every 156 g of KClOₓ there are 72 g of oxygen. The mass percent of O is:

%O: 72 g/156 g × 100% = 46.2%

In KClO, the mass percent of O is: 32.00 g/90.5 g × 100% = 35.4%

In KClO₂, the mass percent of O is: 64.00 g/138.5 g × 100% = 46.2%

Then, x = 2

6 0
3 years ago
A container holds a mixture of 3.01 x 1023 molecules of H₂ gas. 1.20 x 1024 molecules of CO₂ gas, and 1.50 x 10
Rom4ik [11]

Answer:

.4998 atm    ( rounded to .5 atm   ) <===== not one of the answers listed

Explanation:

The partial pressure exerted by O2   is   equal to the fraction that is O2 times the pressure

1.5 / ( 1.5 + 1.2 + .301 )   * 1 atm = .4998 atm  

<u>( 1) Are you sure it is   ONE atm pressure in the container?</u>

<u>(2) IS the first answer supposed to be   5 x 10^-1  atm    perhaps?</u>

5 0
2 years ago
A horizontal row of the periodic table is usually referred to as a ____________
zaharov [31]

the answer is period

8 0
3 years ago
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Rudiy27

Answer:

gggggggggg

Explanation:

gggggggg

8 0
3 years ago
What is a nuclear acid ​
Ronch [10]

Answer:

Nucleic acid is an important class of macromolecules found in all cells and viruses. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins.

A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.

8 0
3 years ago
Read 2 more answers
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