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Molodets [167]
3 years ago
15

What are isotopes used for in chemistry

Chemistry
1 answer:
disa [49]3 years ago
3 0
I can be used for thyroid cancer or in nuclear
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Which picture best illustrates thermal energy transfer by conduction?
netineya [11]
Metal Spoon in Hot Water
6 0
3 years ago
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How do pickles turn to pickles?
RoseWind [281]

1.Slice cucumbers into 1/4 inch slices or spears. Set aside.

2.To make brine, combine water, vinegar, salt, and sugar in medium sauce pan. Bring to a boil and swirl to make sugar and salt dissolve. ...

3.Add cucumbers to jars. ...

4.This recipe made enough for me to one pint and fill two quart jars.

8 0
3 years ago
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What is the mass in grams of 5.25 x 1024 molecules of NaOH?
Colt1911 [192]

Answer: The mass is 348.8g

Explanation:

We begin by using Avogadro's number to convert the number of molecules of  Sodium Hydroxide to moles.

6.02 x 10∧23 molecules of NaOH -------> 1 mole of NaOH

∴ 5.25 x 10∧24 molecules of NaOH -------> 1/ 6.02 x 10∧23 x 5.25 x 10∧24 =

                                                                    8.72moles.

Having found the number of moles, we then move from moles to gram by using the molar mass of NaOH (i.e the mass of 1 mole of NaOH).

1 mole of NaOH is equivalent to 40g (Molar Mass)

8.72 moles of NaOH would be equivalent to; 40/ 1  x 8.72 = 348.8g

The mass in 5.25 x 10∧24molecules of NaOH is 348.8g

4 0
3 years ago
Answer this if u know science please
scoundrel [369]

Answer:  

1.  DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.

2.  both

Explanation:  Since errors can occur when DNA replicates itself, mutations can occur in both asexually and sexually reproducing organisms.

5 0
3 years ago
What similarities and difference exist between electrons and neutrons? Consider charge, size, location and number.
Alborosie

<u>Charge:</u>

An electron has a negative charge and a <em>n</em>eutron has a <em>n</em>eutral charge.


<u>Size:</u>

Electrons have a really small mass whereas the neutron has a mass of about 1 amu.


<u>Location:</u>

Neutrons are found in center of an atom, but electrons are around it.


<u>Number:</u>

The number of electrons and neutrons in atom varies.

7 0
3 years ago
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