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OleMash [197]
3 years ago
8

A chemistry student’s height is measured at 68.5 inches. How tall is the student in cm?

Chemistry
1 answer:
pantera1 [17]3 years ago
4 0
173.99cm multiply 68.5 x 2.54 always use that number when converting inches to cm
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6 0
3 years ago
Is potassium fluoride a covalent bond or ionic bond
Ivahew [28]

It's an ionic bond! Potassium is a cation, or a metal with a positive charge, and fluoride is an anion, or a nonmetal with a negative charge.

A covalent bond is the bond between two nonmetals.

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7 0
3 years ago
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Define not matter and give examples​
VLD [36.1K]

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Everything that has mass and takes up space is matter. Every day, you encounter phenomena that either don't have mass or don't take up space. They are non-matter. Basically, any type of energy or any abstract concept is an example of something that is not matter.

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3 0
3 years ago
Ethanol has a density of 0.789 g/cm3. What is the mass of 423 cm3 of ethanol? M = (D)(V)
Ivahew [28]

Answer:

<h2>The answer is 334 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of ethanol = 423 cm³

density = 0.789 g/cm³

So we have

mass = 0.789 × 423 = 333.747

We have the final answer as

<h3>334 g</h3>

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