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2 years ago

5 Facts about Geology

1 answer:

4 0

1-There are 18 volcanoes in the US with the potential to erupt again, all of them in Alaska, Hawaii and the West Coast states.

2-Rubies and sapphires are actually the same mineral - corundum. The basic chemical formula of corundum is Al2O3, but traces of iron stain the mineral red (ruby) while traces of chromium or titanium stain the mineral blue (sapphire).

3-Rubies, sapphires and emeralds are all more rare than diamonds.

4-Not all diamonds are transparent. They come in a variety of colors (called "fancies"), including yellow, green, blue, orange, brown ("champagne"), purple, grey, black (called carbanado, recently shown to be meteroic), milky white, pink, and red. Red is by far the rarest.

5-Antacids taste like chalk because they ARE chalk, a.k.a. calcium carbonate.

Hope this helps, Give a thanks ! Haha

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Cooling the concentrated ammonia and hydrochloric acid before carrying out the experiment increased the time taken for the white

Crazy boy [7]

Hope it helps you :)

8 0

2 years ago

What is the Mechanical advantage of a machine that only changes the direction of the force?

Sloan [31]

Answer: 1

Explanation:

The number of times a machine increases a force exerted on it The input force will be the same as the output force.

6 0

2 years ago

Ammonium perchlorate is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with itself to produce nitrogen gas , ch

Zinaida [17]

Answer:

2.9 g

Explanation:

There is some info missing. I think this is the original question.

Ammonium perchlorate is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with itself to produce nitrogen gas, chlorine gas, oxygen gas, water, and a great deal of energy.

What mass of water is produced by the reaction of 9.6 g of ammonium perchlorate?

Step 1: Given data

Mass of ammonium perchlorate: 9.6 g

Step 2: Write the balanced equation

2 NH₄ClO₄(s) → N₂(g) + Cl₂(g) + 2 O₂(g) + 4 H₂O(l)

Step 3: Calculate the moles corresponding to 9.6 g of ammonium perchlorate

The molar mass of ammonium perchlorate is 117.49 g/mol.

$9.6 g \times \frac{1mol}{117.49 g} = 0.082mol$

Step 4: Calculate the moles of water formed from 0.082 moles of ammonium perchlorate

The molar ratio of NH₄ClO₄ to H₂O is 2:4. The moles of water formed are 4/2 × 0.082 mol = 0.16 mol

Step 5: Calculate the mass corresponding to 0.16 moles of water

The molar mass of water is 18.02 g/mol.

$0.16 mol \times \frac{18.02g}{mol} = 2.9 g$

3 0

2 years ago

A solution has a oh- = 1 x 10-5 m what are the h30 and the ph of the solution

Deffense [45]

I think it's easiest to find the pOH from the given [OH-] first.

-log(1x10^-5)

pOH=5

Then find the pH.

pOH+pH=14

5+pH=14

pH=9

Then find the [H+] using the pH.

antilog(-9) (if you dont have an antilog button use 10^-9)

[H+]=1x10^-9

3 0

2 years ago

Read 2 more answers

Should a homeowner expect more caco3 buildup in hot water pipes or cold water pipes

Arturiano [62]

Answer:
CaCO₃ built up in hot water pipes

Explanation:

The hardness of water is classified as;

Permanent Hard Water:
In this the mineral content cannot be removed by boiling. This water contains mainly following,

Calcium Sulfate CaSO₄

Calcium Chloride CaCl₂

Magnesium Sulfate MgSO₄

Magnesium Chloride MgCl₂

These salts does not precipitate out on heating water.

Temporary Hard Water:
In this water the mineral content can be removed by boiling. This water contains mainly following,

Calcium Bicarbonate Ca(HCO₃)₂

Calcium Carbonate CaCO₃

Magnesium Bicarbonate Mg(HCO₃)₂

Magnesium Carbonate MgCO₃

These salts does not precipitate out on heating water. i.e.

Ca(HCO₃)₂ -------heat------> CaCO₃ + CO₂ + H₂O

The CaCO₃ are formed in the form of scales.

Result:
Hence, we can say that that CaCO₃ built up in hot water pipes.

5 0

2 years ago