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Sonbull [250]
4 years ago
14

I need help with 8 and 9 A and B NOW PLEASE AND THANK U

Chemistry
1 answer:
rosijanka [135]4 years ago
8 0
Since the fault separates the layers, we can tell that the fault occurred after all the layers were deposited.
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Write down examples of some natural acids and natural bases. Also write use of them.
trasher [3.6K]

Answer:

Formic acid, citric acid, Oxalic acid, washing soda, baking soda, etc. can be some examples of natural acids and natural bases. They both have domestic, industrial, and various other purposes.

Explanation:

<h3><u>NATURAL ACIDS</u>:</h3>

There are lots of natural acids present in our nature. Some of them are the following:

> <u>Formic acid</u>

 USE: It is used in the stimulation of oil and gas wells as it is less reactive towards the metal.

> <u>Citric acid</u>

 USE: It is considered as the best rust remover as it doesn't harm the metal just remove the rust.

> <u>Oxalic acid</u>

USE: It easily remove iron and ink stains and that's why it is used as an acid rinsing material in Laundries.

<h3><u>NATURAL BASES</u>:</h3>

There is a variety of natural base found in our nature which founds a lot of uses in day to day life. some of them are the following:

> <u>Washing soda</u>

USE: It is used in commercial detergent mixture to treat hard water.

> <u>Baking soda</u>

USE: It is the best rising agent used mostly in cooking and for domestic purposes like removing stains, etc..

3 0
4 years ago
The density of silver is 10.49 g/cm3. if a sample of pure silver has a volume of 12.993 cm3, what would the mass?
weqwewe [10]
Multiply 10.49 by 12.993. that should be it. 130 grams ish?
6 0
3 years ago
Need help answering
svp [43]

Answer:

Your answer would be E

Explanation:

4 0
3 years ago
Equation Given : Al^(3+) + Na3PO4 ==&gt; 3Na^+ + AlPO4
Helga [31]

1 mols of Aluminium ion forms 1 mol aluminium phosphate

Molar mass of AlPO_4

  • 27+31+16(4)
  • 58+48
  • 106u

Moles of AlPO_4

  • 61µg/106
  • 0.000061/106
  • 5.75×10^{-7}
  • 57.5µmol

Moles of Al3+=57.5µmol

3 0
3 years ago
What was significant about the rocks Darwin found in the mountains
inn [45]
Sea fossils were found on top of the mountains which gave evidence of evolution for continents and oceans
5 0
3 years ago
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