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3 years ago

Is it possible for an atom to make more than one bond? explain and give an example.

Chemistry

1 answer:

rusak2 [61]3 years ago

5 0

Answer:

yes

Explanation:

you can have a double bond, i dont know how to explain it just one of those types of questions

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A sample of neon gas occupies a volume of 2.8L at 1.8 atm. What would its volume be at 1.2 atm?

puteri [66]

Answer:

4.2 L

Explanation:

Use Boyle's Law and rearrange formula.

- Hope this helps! Please let me know if you need further explanation.

3 0

3 years ago

A rigid tank contains 0.66 mol of oxygen (O2). Find the mass of oxygen that must be withdrawn from the tank to lower the pressur

dsp73

Answer:

12.8 g of $O_{2}$ must be withdrawn from tank

Explanation:

Let's assume $O_{2}$ gas inside tank behaves ideally.

According to ideal gas equation- $PV=nRT$

where P is pressure of $O_{2}$ , V is volume of $O_{2}$ , n is number of moles of $O_{2}$ , R is gas constant and T is temperature in kelvin scale.

We can also write, $\frac{V}{RT}=\frac{n}{P}$

Here V, T and R are constants.

So, $\frac{n}{P}$ ratio will also be constant before and after removal of $O_{2}$ from tank

Hence, $\frac{n_{before}}{P_{before}}=\frac{n_{after}}{P_{after}}$

Here, $\frac{n_{before}}{P_{before}}=\frac{0.66mol}{43atm}$ and $P_{after}=17atm$

So, $n_{after}=\frac{n_{before}}{P_{before}}\times P_{after}=\frac{0.66mol}{43atm}\times 17atm=0.26mol$

So, moles of $O_{2}$ must be withdrawn = (0.66 - 0.26) mol = 0.40 mol

Molar mass of $O_{2}$ = 32 g/mol

So, mass of $O_{2}$ must be withdrawn = $(32\times 0.40)g=12.8g$

7 0

3 years ago

The Great Burdock plant’s seeds have spines on them that attach to the fur of animals that brush against it. The seed then trave

Sphinxa [80]

The answer is B. Commensalism.

<span>Commensalism is a relationship between two organisms in which only one of them has benefit, and the other one is not affected. In this example, the Great Burdock's plants spread their seeds using animals, so they benefit from this relationship. On the other hand, animals neither have benefits not are harmed from the relationship.</span>

3 0

4 years ago

Read 2 more answers

How many independent variables can be tested in a standard scientific experiment

Shalnov [3]

One independent variable

6 0

4 years ago

What is the mass number of 207Pb ? A: 289 B: 207 C: 125 D: 82

Sergio [31]

207 is the mass number. 82 would be the atomic number

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3 years ago