3 years ago

21) Scientists represent elements by using a formulas b. subscripts c. symbols d. words

Chemistry

1 answer:

Hunter-Best [27]3 years ago

4 0

They represent elements by using symbols

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The answer is 80 atomic mass

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An object has a mass of 441 g and a volume

Ratling [72]

Answer:

<h3>The answer is 4.41 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

$density = \frac{441}{10} \\$

We have the final answer as

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2 years ago

24.3 2 An artifact classified as seeds, found in a site at Newlands Cross, Ireland, is found to have a 14C radioactivity of 0.10

Rina8888 [55]

Answer:

Age ≅ 7500 years

Explanation:

All radioactive decay is 1st order kinetics and described by the expression

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3 years ago

Add the polynomials (7x^3-2x^2-12)+(3x^3-8x^2+10x)

laiz [17]

Answer:

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Explanation:

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2 years ago