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aliina [53]
2 years ago
13

4. Write a chemical formula for a compound that has two atoms of oxygen (0) and

Chemistry
1 answer:
Katyanochek1 [597]2 years ago
5 0
The answer is Fe3O2 because there’s 2 oxygen and 3 iron
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Answer:

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The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

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2 years ago
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Oliga [24]
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What happen the dunes sunflowers after they died
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6 0
2 years ago
What is a molecule and atom. Easiest way to explain?
Alex73 [517]
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5 0
3 years ago
A certain satellite orbiting Earth has a speed of about 17,000 miles/hour. What is its approximate speed expressed to the correc
algol [13]

Answer:- The speed of the satellite is 7.6\frac{kilometer}{second} .

Solution:- It's a unit conversion problem that could be solved using dimensional analysis which is also known as train trail method.

The given speed of the satellite is 17000 miles per hour and we are asked to convert it to kilometers per second.

given:

1 Kilometer = 0.62 mile

1 hour = 3600 second

Let's use this given info and plug in the values to make the set up as:

17000\frac{mile}{hour}(\frac{1 kilometer}{0.62 mile})(\frac{1 hour}{3600 second})

= 7.616\frac{kilometer}{second}

We round the answer to two significant figures, since the given number(17000) has only two significant figures.

Hence, the speed of the satellite is 7.6\frac{kilometer}{second} .

6 0
3 years ago
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