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3 years ago

True or false nothing is smaller than atom

Chemistry

1 answer:

Papessa [141]3 years ago

3 0

False. there are quarks, gluons, electrons and nuetrions.

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Express in scientific notation. Make sure your answer has the same number of significant figures as the starting value. (1.8 x 1

slamgirl [31]

Answer : The answer is, $0.2\times 10^{-4}$

Explanation :

Scientific notation : It is defined as the way or representation of expressing the number that are too big or too small that is written in the decimal form. That means always written in the power of 10 form.

For example : 8000 is written as, $8.0\times 10^3$ in this notation, the significant figure is, 1 but $0.8\times 10^4$ in this notation, the significant figures are, 2

The given problem are :

$\frac{1.8\times 10^{-2}}{9\times 10^2}=0.2\times 10^{-4}$

According to the divide and multiplication rules of scientific figures, the final answer is only as precise as the value with the least number of significant figures.

Hence, the answer is, $0.2\times 10^{-4}$

6 0

3 years ago

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How does a nuclear plant operate

slava [35]

A process called fission

3 0

3 years ago

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Determine the compound type for the following formulas: C12H22011 Mg(OH)2 H20 Cu3Zn2 Au <br>

Scorpion4ik [409]

Answer:

C12H22O11

✔ covalent

Mg(OH)2

✔ Ionic

H2O

✔ covalent

Cu3Zn2

✔ metallic

Explanation:

7 0

3 years ago

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We can consider a chemical to be safe if:

slamgirl [31]

We can consider a chemical to be safe if it does not contain any harmful substances such as nitrogen, harmful acids, or even excessive heat. Other chemicals such as the chemicals used in food products like, for example, citric acid, is not so harmful.
Hope this helps! :D
Any questions? Just let me know! I'd be happy to help any way possible.

8 0

3 years ago

Which statement below is not true?

Verizon [17]

Hi I believe the answer is B
Hope this helps you

7 0

2 years ago