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Leni [432]
3 years ago
6

In July 1994 the comet shoemaker-levy 9 collided with the planet Jupiter, as scientists had predicted. To be able to accurately

predict when a comet will collide with a planet, it is essentially understand -
Chemistry
1 answer:
Korvikt [17]3 years ago
5 0

Answer:

the gravitational attraction that exists between all bodies

Explanation:

Comet shoemaker-levy 9 was the comet that broke away and collided with the largest planet on our solar system, the Jupiter. The comet fall apart from the asteroids in the year 1992 and flew and hit Jupiter in the year 1994. This was predicted by the scientist.

Similarly when a comet can hit a planet can be accurately predicted by the scientist or the researcher by understanding and studying the gravitational forces that exists between the bodies in the solar system. It is very important to understand the gravitational attractions which exists between all the bodies in the universe in order to calculate or predict when can a comet collide with a planet.

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Which natural resource needed to be mined to produce a digital phone?
erik [133]

Answer:

Copper

Explanation:

copper is used in the wiring of the phone

7 0
3 years ago
a boulder of shore is slowly broken apart by the force of the water it is a change or it is a example
natima [27]

Answer:

I think that this would be an example of erosion

6 0
2 years ago
10 points!! Please give me work with it and I will mark as brainlist.
Georgia [21]

Answer: The molecular formula will be C_2H_4O_2

Explanation:

If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mass of C = 40.0 g

Mass of O = 53.3 g

Mass of H = 6.66 g

Step 1 : convert given masses into moles.

Moles of C =\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{40.0g}{12g/mole}=3.33moles

Moles of O =\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{53.3g}{16g/mole}=3.33moles

Moles of H =\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{6.66g}{1g/mole}=6.66moles

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = \frac{3.33}{3.33}=1

For O =\frac{3.33}{3.33}=1

For H = \frac{6.66}{3.33}=2

The ratio of C : O : H = 1: 1: 2

Hence the empirical formula is COH_2

The empirical weight of COH_2 = 1(12)+1(16)+2(1)= 30g.

The molecular weight = 60 g/mole

Now we have to calculate the molecular formula.

n=\frac{\text{Molecular weight }}{\text{Equivalent weight}}=\frac{60}{30}=2

The molecular formula will be=2\times CH_2O=C_2H_4O_2

8 0
2 years ago
Carbon's atomic number is 6. this means that it has __________ electrons. after completing the first energy level, carbon has __
ser-zykov [4K]

a) 6 electrons - because atomic number is the same as the electron number

b) 4 - because 6-2=4

c) Covalent bonds - it needs 4 more electrons for a full outer shell.

4 0
3 years ago
16) a 110,52 g sample of mineral water is analyzed for its magnesium content. the mg2+ in the sample if first precipitated as mg
Nataliya [291]

The amount of the magnesium in the sample in ppm is 497 ppm.

<h3>What is parts per million?</h3>

The term parts per million refers to one of the manners in which concentration is expressed. It is common in oceanography and analytical chemistry.

Given that;

Mass of Mg= 0.0549 g

Mass of the sample = 110.52 g

Amount in PPM = 0.0549 g/110.52 g * 10^6

= 497 ppm

Learn more about ppm:brainly.com/question/16727593

#SPJ1

4 0
1 year ago
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