3 years ago

In word equations, what do plus signs actually mean?

Chemistry

2 answers:

weqwewe [10]3 years ago

5 0

It means positive sign

shepuryov [24]3 years ago

3 0

<span>It means that your combining those two chemical substances</span>

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Convert the scientific notation to a decimal number. Type the correct answer in the box. 4 × 10-5 cm = cm

MakcuM [25]

Answer:

$4 * 10^{-5}cm = 0.00004cm$

Explanation:

Given

$4 * 10^{-5}cm = [\ ]cm$

Required

Solve

Apply law of indices

$4 * \frac{1}{10^5}cm = [\ ]cm$

Evaluate 10^5

$4 * \frac{1}{100000}cm = [\ ]cm$

$4 * 0.00001cm = [\ ]cm$

$0.00004cm = [\ ]cm$

Hence:

$4 * 10^{-5}cm = 0.00004cm$

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Answer:

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dmitriy555 [2]

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