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Leto [7]
2 years ago
14

If you have a rock with parallel bands of white and black minerals, what type of rock would this most likely be?

Chemistry
1 answer:
vovikov84 [41]2 years ago
8 0

Answer: The Correct answer that can be said is ( Sedimentary Rock )

that being said there may be other types of rocks to use as an answer but without option choices this is my best guess

Explanation:

Sedimentary rock You find a rock in which the grains are arranged in parallel bands of white and black crystals. The rock is probably a Metamorphic rock Cooling & crystallization produce

i would appreciate brainliest have a great day

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climate

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causes it happens over a long period of time

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A patient is prescribed 100mg/day of antibiotic for 2 weeks. The antibiotic is available in vials that contain 20mg/vial of the
Nimfa-mama [501]
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-2(3b-2)=8b-10 this is a problem that i am stuck on. math enough said
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The answer is B=1

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Leokris [45]

Answer:

1. 77.5g,

2. 1.78 mol,

3. 281 g

4. add 80 mL of water

Explanation:

1. Molar mass (Na2O) = 2*23.0 + 16.0 = 62.0 g/mol

1.25 mol *62.0 g/1mol = 77.5 g Na2O

2. Molar mass (KOH) = 39.1 +16.0+1.0 = 56.1 g/mol

100 g * 1 mol/56.1 g = 1.78 mol KOH

3. Molar mass (KOH) = 39.1 +16.0+1.0 = 56.1 g/mol

5 mol * 56.1g/1 mol = 281 g KOH

4. M1V1 =M2V2

M - molarity, V- volume of solution

2.0M*20mL = 0.4M*V2

V2 = 2.0*20/0.4 = 100 mL

Volume of diluted solution = 100 mL

We have 20 mL of solution, we need 100 mL of solution,

so we need to add (100-20) =80mL of water.

Take 20 ml 2.0 Molar  of solution of HCl , add 80 mL of water, then we get 100 mL 0.4 M solution of HCl.

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3 years ago
for hydrogen-like atom classify these electron transitions by whether they result in absorption or emission light n=3 to n=5 and
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For hydrogen-like atom electron transition from n=3 to n=5, it would be classified as an absorption of energy. For hydrogen-like atom electron transition from <span>n=3 to n=2, it would be classified as an emission of energy. Hope this helps. Have a nice day.</span>
7 0
2 years ago
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