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Naya [18.7K]
3 years ago
6

Define the following terms atom​

Chemistry
2 answers:
rjkz [21]3 years ago
8 0
An atom is the smallest particle of all matter
DedPeter [7]3 years ago
4 0

Answer:

An atom is the smallest particle of all the matters

have a nice day

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Give me 3 facts and 3 superstitious about the moon​
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Facts:

1. The Moon has no atmosphere

2. The Moon has quakes

3. The Moon is a dusty ball of rock, measuring 3,476km in diameter

Superstitions :

1. Gazing too long at the full moon will bring out one’s inner lunatic.

2. The waxing of a new moon is the best time for sowing seeds, weddings, childbirth, new projects and travel.

3. It is bad luck to see the new moon, for the first time of the night, through glass or tree branches.

Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest if it's correct?  

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3 years ago
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What is the significance of the symbol and formula​
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Answer:

please give me brainlist and follow

Explanation:

Importance of symbols and Formulae :

Symbols and formulae of substance gives a lot of information like. Types of elements present in the compound. E.g. (H20 is made of two elements hydrogen and oxygen). Number of each kind of atoms in one molecule.

7 0
3 years ago
A piece of aluminum weighing 10.0 grams is placed into a graduated cylinder that has an initial volume (before immersion) of 35.
padilas [110]

Answer:

The density of the metal sample is 2.70 \frac{grams}{mL}

Explanation:

Density is a magnitude that allows you to measure the amount of mass in a given volume of a substance. Then, the expression for the calculation of density is the ratio between the mass of a body and the volume it occupies:

d=\frac{m}{V}

Density, according to the International System of Units, is usually expressed in kilograms per cubic meter (kg / m3) or gram per cubic centimeter (g / cm3). Although it can also be expressed in any other unit of mass by volume.

So, for the calculation of density you know that:

  • mass of the sample= 10 grams
  • volume of the sample = volume on the cylinder after immersion - volume on the cylinder before immersion= 38.7 mL - 35.0 ml = 3.7 mL

Then:

d=\frac{10 grams}{3.7 mL}

d=2.70 \frac{grams}{mL}

<u><em>The density of the metal sample is 2.70 </em></u>\frac{grams}{mL}<u><em></em></u>

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Write the formula for each compound
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Chromium(III) Sulfite Cr2(SO3)3 Molecular Weight

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Ni(NO3)2

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What is an advantage for a single cells organisms
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Single cell organisms can reproduce very quickly 
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