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Korolek [52]
3 years ago
7

Unless otherwise instructed, you may use the periodic table in the Chemistry: Problems and Solutions book for this question.

Chemistry
1 answer:
emmainna [20.7K]3 years ago
7 0

Answer:

The answer to your question really depends on three things: how much water you have, how cold it is to start out, and how cold the things around it are. water actually freezes when it gets to 32 degrees fahrenheit (0 degrees celsius), but the time it takes to get there may be different. let's start with the first. if you take two glasses, and fill one with a tiny bit of water, and the other about halfway, then put them both in the freezer, the one with less water will freeze first (you can try this at home, but i recommend using plastic cups and not glass ones). now let's move on to the second part. let's say you have two glasses, and you fill one with really cold water that has been in the refrigerator, and the other with really hot water from the sink.

Explanation:

Please mark me as the brainliest answer and please please pleaseeee follow me for more answers to your questions

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Rom4ik [11]
<span />The answer is <span>Fe3+ + e- Fe2+ =</span>
6 0
4 years ago
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Consider the following three samples. A. A sample containing 180 g glucose (C6H12O6) B. A sample containing 90 g glucose and 90
Aloiza [94]

Answer:

E) All three samples have the same number of hydrogen atoms

Explanation:

The statements are:

A) Sample A has more hydrogen atoms than sample B or sample C.

B) Sample B has more hydrogen atoms than sample A or sample C.

C) Sample C has more hydrogen atoms than sample A or sample B

D) Both samples A and C have the same number of hydrogen atoms, but more than in sample B.

E) All three samples have the same number of hydrogen atoms

Hydrogens in sample A are:

180g × (1mol Glucose / 180.156g) × (12mol H / 1 mol Glucose) =<em> 12 moles of H</em>

Hydrogens in sample B are:

90g Glucose × (1mol Glucose / 180.156g) × (12mol H / 1 mol Glucose) =<em> 6 moles of H</em>

90g mannose× (1mol Mannose / 180.156g) × (12mol H / 1 mol Glucose) =<em> 6 moles of H</em>

<em>Total moles: 12</em>

Hydrogens in sample C are:

180g × (1mol Mannose / 180.156g) × (12mol H / 1 mol Glucose) =<em> 12 moles of H</em>

<em />

Thus, right answer is:

<em>E) All three samples have the same number of hydrogen atoms</em>

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I hope it helps!

8 0
4 years ago
A certain medication recommends that each day a person be given 8 mg for every 100 lbs of weight. If 10,000 people take this med
Nikitich [7]

Answer:

Total Mass of daily drug used = 144 Kg

Explanation:

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Since the drug is to be given 8 mg for every 100 lbs;

number of 8 mg doses = 1.8 * 10^6 / 100 = 1.8 * 10^4 doses

Total mass of the doses = 1.8 * 10^4 * 8 mg = 1.44 * 10^5 mg.

We divide the value above by 1000 to convert to Kg.

Therefore, total daily mass of drug used = (1.44 * 10^5)/1000 = 144 Kg

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4 years ago
What is the concentration of a solution with a volume of 1 L that contain 200 grams of Fe(OH)3?
Goryan [66]

Answer:

0.187M

Explanation:

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Nata [24]
False because a copper coin is a solid but can harness electricity wich is an energy


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