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nataly862011 [7]
3 years ago
11

Which explanation of the solar system best fits the observations of the planets and how they orbit the sun?

Chemistry
1 answer:
Svetllana [295]3 years ago
6 0
<span>The sun and planets formed from a collapsing spinning cloud of gas and dust.</span>
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Why do ionic bonds have an overall neutral charge?
Sauron [17]

Answer:

Ionic bonds are formed between metals and nonmetals. The compatability of the metals and nonmetals is what makes them have a neutral charge as they cancel each other.

Eg: Using sodium chloride.

Na+ + Cl- > a neutral compound of NaCl without charges.

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Three blocks are shown here pls HELPPPP:
White raven [17]

Answer: I am confident the answer is B

Explanation:

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To what extent are countries adapting to the effects of climate change, and why is adapting more challenging for some countries
Alika [10]

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Progress made in Asia and the Middle East is clear, with nations such as China, Singapore and Malaysia all demonstrating increased adaptability. Much of Africa has also made progress since 1995, along with South American nations, including Brazil and Chile.

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3 years ago
A mixture of benzoic acid and naphthalene was dissolved in tert-butyl methyl ether and the resulting solution was extracted with
Llana [10]

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C₆H₅COOH Benzoic Acid

Explanation:

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The sodium benzoate  is completely soluble in the aqueous layer being a salt, and  reacts with hydrochloric acid ( again an acid base reaction ) which precipitates the benzoic acid  since the it is insoluble in water hence  separating it.

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4 years ago
A student has a mass of 90 kg what would his weight be on mars if the acceleration due to gravity is 3.7 ?
Mumz [18]

Answer:

333N

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Once we have the object's mass, we can find the weight by multiplying it by the gravitational force, which it is subject to. Being that Mars has a gravitational force of 3.7m/s2, we multiply the object's mass by this quantity to calculate an object's weight on mars.

So an object or person on Mars would weigh 37.83% its weight on earth. Therefore, a person would be much lighter on mars. Conversely, a person is 62.17% heavier on earth than on Mars.

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