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alexandr402 [8]
3 years ago
7

Why are there 6 electrons in O2

Chemistry
1 answer:
o-na [289]3 years ago
5 0

Two oxygen atoms in a oxygen molecule share two electrons. Oxygen atoms only have 6 valence electrons. They want 8 electrons so they need to steal two or share two.

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4. Energy can be conserved by -
mart [117]

Energy can be conserved by efficient energy use.

Answer: Option A

<u>Explanation:</u>

Energy can be transferred from one form to another, but it cannot be destroyed or created. So it can be conserved if efficiently used. Thus efficient usage of energy lead to conservation of energy. Due to conservation of energy, the forces can be renewable and non-renewable.

So, we should know how the input energy can be completely converted to another form of energy leading to efficient usage of energy without any loss. As if there is no loss, input energy will be equal to output energy leading to 100% efficiency.

4 0
3 years ago
Iron (III) chloride + sodium carbonate → iron (III) carbonate + sodium chloride Which of these is the balanced equation for the
Nonamiya [84]
2 FeCl3 + 3 Na2CO3 = Fe2(CO3)3 + 6 NaCl


4 0
3 years ago
How many liters of CO2 gas can be produced at 30.0 °C and 1.50 atm from the reaction of 5.00 mol of C3H8 and an excess of O2 acc
lbvjy [14]

Answer:

249 L

Explanation:

Step 1: Write the balanced equation

C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g)

Step 2: Calculate the moles of CO₂ produced from 5.00 moles of C₃H₈

The molar ratio of C₃H₈ to CO₂ is 1:3. The moles of CO₂ produced are 3/1 × 5.00 mol = 15.0 mol

Step 3: Convert "30.0°C" to Kelvin

We will use the following expression.

K = °C + 273.15

K = 30.0°C + 273.15 = 303.2 K

Step 4: Calculate the volume of carbon dioxide

We will use the ideal gas equation.

P × V = n × R × T

V = n × R × T/P

V = 15.0 mol × 0.0821 atm.L/mol.K × 303.2 K/1.50 atm

V = 249 L

5 0
3 years ago
I NEED HELP!!OMG OMG OMG
Virty [35]

Answer:

AHHHHHHHHHHHHHHHHHH

Explanation:

I WISH I COULD

7 0
2 years ago
Read 2 more answers
Explain how original mass of dry ice compares with the mass of carbon dioxide gas?
MAVERICK [17]
The freezing temperature at a normal sea level air pressure is negative 78.5 degrees.
8 0
3 years ago
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