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Pachacha [2.7K]
3 years ago
13

Which of the following statements about the Sun is true?

Chemistry
1 answer:
Vera_Pavlovna [14]3 years ago
8 0
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

I think the answer should be C which is <span>The Sun is one of only a few stars in the galaxy, but it is much larger than any of the other stars.
</span>
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A gas takes up a volume of 10 liters, has a pressure of 7.5 atm, and a
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What is 190 K in degrees Celsius? Show your work for full credit.
saveliy_v [14]

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-83.15

Explanation:

190K − 273.15 = -83.15°C

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2 years ago
Are the bonds in each of the following substances ionic, nonpolar covalent, or polar covalent? Arrange the substances with polar
KengaRu [80]

Covalent bonds can be classified as nonpolar and polar covalent given the electronegativity difference between two atoms (ΔEN).

Nonpolar covalent bond electrons are shared equally between two atoms, polar covalent bond electrons are shared unequally, atoms have partial charges, ionic bond electrons are completely transferred to one atom, full charges present. Therefore, the greater the electronegativity difference, the greater the bond polarity. Let's determine the types of bonds present in the compounds and arrange the ones with polar covalent in order of increasing ΔEN. Sulfur and oxygen are both nonmetals so the substance is covalent. Sulfur has EN = 2.5 and oxygen has EN = 3.5. Since there is an electronegativity difference, the S−O bonds in the substance can be classified as polar covalent bonds.

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brainly.com/question/25150590

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3 0
2 years ago
1. When an ionic bond forms between magnesium (Mg) and bromine (Br), which of the following occurs?
AleksAgata [21]

The correct answers are:

1. B. Mg loses two electrons.

When Mg and Br combine, 2 atoms of Br attaches itself to Mg. The chemical reaction is:

Mg + Br ---> MgBr2

Since Br is more electronegative than Mg, then Mg loses an electron per Br therefore losing 2 electrons.

 

2. D. An atom that gains electrons must be attracted to an atom that loses electrons.

An ionic bond is formed when one molecule is more electronegative than the other molecule which results in gaining and losing of electrons. The more electronegative molecule gains electron while the less electronegative loses electron.

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3 years ago
Why does the rate of a chemical reaction increase with a rise in the temperature of the reactants?
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More collisions occur making the particles used up
4 0
3 years ago
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