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3 years ago

What is the difference between an element and a compound? (p.s. it due in 5 mins ASAP so hurry.)

Chemistry

1 answer:

Lubov Fominskaja [6]3 years ago

6 0

Explanation:

An element just has one-type atoms/atom (e.g. O2). Meanwhile, a compound is a variety of atoms (e.g. H2O).

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An element like silicon is not usually used to make wires or pans because it what?

Sloan [31]

It is not good conductors of electricity or heat!

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4 years ago

Read 2 more answers

Which element best conducts electricity?<br> argon<br> copper<br> nitrogen<br> oxygen

tekilochka [14]

Answer:

I think it is copper

Explanation:

.........................

4 0

4 years ago

Which organelle carries substances to other parts of a cell?

stiv31 [10]

Should this not be in biology? But the answer is Endoplasmic reticulum

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3 years ago

To what temperature must a sample of nitrogen at 27°C and 0.625 atm be taken so that it’s pressure becomes 1.125 atm at constant

Karo-lina-s [1.5K]

Answer:

The sample of nitrogen must be taken to 267 $^{0}\textrm{C}$ .

Explanation:

Let's assume nitrogen gas behaves ideally.

Here amount of nitrogen gas in both states remain constant.

So, in accordance with combined gas law for a given amount of an ideal gas in two different states: $\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}$

where $P_{1}$ and $P_{2}$ are initial and final pressure respectively. $V_{1}$ and $V_{2}$ are initial and final volume respectively. $T_{1}$ and $T_{2}$ are initial and final temperature (in kelvin scale) respectively.

Here $V_{1}=V_{2}$ , $P_{1}=0.625atm$ , $T_{1}=(273+27)K=300K$ and $P_{2}=1.125atm$

So $T_{2}=\frac{P_{2}T_{1}}{P_{1}}=\frac{(1.125atm)\times (300K)}{(0.625atm)}=540K$

540 K = (540-273) $^{0}\textrm{C}$ = 267 $^{0}\textrm{C}$

So the sample of nitrogen must be taken to 267 $^{0}\textrm{C}$ .

8 0

3 years ago

why would you expect to see similar rocks and rock structures on two land masses that were connected at one time?

tangare [24]

If they were connected at one time than you would expect to find similar rock structures because they eroded, weathered, and we’re formed most likely at the same time out of the same material. So basically since they were near each other they were under the same or similar conditions.

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3 years ago