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gulaghasi [49]
3 years ago
14

Which element is present in all organic compounds?

Chemistry
2 answers:
Mkey [24]3 years ago
5 0
The anser is 1, carbon
Karolina [17]3 years ago
5 0
Carbon is a basic element in all organic compounds, so (1) is the best choice.
Hope this would help:))
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For the Lewis structure above, how many lone pairs are on the P in PCI3
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Answer: C is the correct answer

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A linear graph with a slope of zero would indicate which of the following?
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As the independent variable changes, the dependent variable never changes.

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In which way does a balanced chemical equation demonstrate the conservation of matter?
777dan777 [17]

Answer:

A. It shows the same number of atoms of each element on both sides of the equation.

Explanation:

A balanced chemical equation demonstrates the conservation of matter by showing the number of atoms of each element on both sides of the equation or expression.

According to the law of conservation of matter, matter is neither created nor destroyed in the course of a chemical reaction but atoms are rearranged.

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8 0
3 years ago
A sample of O2(g) is placed in an otherwise empty, rigid container at 4224 K at an initial pressure of 4.97 atm, where it decomp
frutty [35]

Answer:

The value of K_p at 4224 K is 314.23.

Explanation:

O_2(g)\rightleftharpoons 2O(g)

Initially

4.97 atm            0

At equilibrium

4.97 - p               2p

At initial stage, the partial pressure of oxygen gas = =4.97 atm

At equilibrium, the partial pressure of oxygen gas = p_{O_2}=0.28 atm

So, 4.97 - p = 0.28 atm

p = 4.69 atm

At equilibrium, the partial pressure of O gas = p_{O}=2p=2\times 4.69 atm=9.38 atm

The expression of K_p is given as :

K_p=\frac{(p_{O})^2}{(p_{O_2})}

K_p=\frac{(9.38 atm)^2}{0.28 atm}=314.23

The value of K_p at 4224 K is 314.23.

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1. What is the Celsius Temperature Scale of K=303?
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303k -273k=30°c because 0°c is 273K

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2 years ago
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