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kati45 [8]
3 years ago
13

Chất nào sau đây là chất điện li mạnh trong H2O

Chemistry
2 answers:
erica [24]3 years ago
3 0

Answer:

những lựa chọn ở đâu?

Explanation:

Hy vọng nó sẽ giúp ích;>

LekaFEV [45]3 years ago
3 0
Sự lựa chọn ở đâu ?
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A 9-ounce of glass contains 72 milligrams of vitamin
sleet_krkn [62]
Answer: 7.2 ounces


Explanation:



1) Data:

<span>- glass size: 9-ounce
</span><span>
</span><span>- content of vitamin C: 72 milligrams
</span><span>
</span><span>
</span><span>- glasssize: x
</span><span>
</span><span>- content of vitamin C: 60 milligrams
</span><span>
</span><span>
</span><span>2) Proportion
</span><span>
</span><span>
</span><span>9 ounces / 75 mg = x / 60 mg
</span><span>
</span><span>
</span><span>3) Solution:
</span><span>
</span><span>
</span><span>9 ounces × 60 mg = 75 mg × x
</span><span>
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</span><span>⇒ x = 9 ounces × 60 mg / 75 mg = 7.2 ounces
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7 0
3 years ago
How much energy does it take to melt 2 kg of ice? (Refer to table of<br> constants for water.)
ioda
It would be C

2 kg x 1000 g/kg x 1mol/18.02 x 6.03 kj/mol = 669kj


5 0
2 years ago
Read 2 more answers
Which element would be the most reactive with K? Br, Na, Ar, or O? And how do you know?
kykrilka [37]
Ar I did this I think i got it right on edunuty
5 0
2 years ago
A very specific procedure scientists follow when conducting experiments is known as the
PtichkaEL [24]

Answer:

Scientific Method.

Explanation:

A scientific method is basically a method or a process when you conduct an experiment. Normally, the process goes like this:

1. You make like a question or something that you want to investigate, it's like the aim of the experiment.

2. You make an experiment and a hypothesis. A hypothesis is basically a guess on how the results of the experiment would turn out. You don't have to be correct for the hypothesis since there is no right or wrong answer.

3. Conduct the experiment. I don't think this needs a detailed explanation since experiments vary from one another.

4. Collect results. The data you collect come in different ways based on your experiment, but it is crucial you get data so that you can answer your question in 1.

5. Make inferences. You can't directly get a conclusion or answer from the results, so inferences are needed.

6. Craft a conclusion or answer. This is the final step when conducting an experiment and the part where you have the answer you needed when you conducted the experiment :)

5 0
3 years ago
T<br> Question 1<br> What is the chemical formula of cobalt(II) nitrite?
Novay_Z [31]

Answer:

Co(NO3)2 isthe right answer

Explanation:

hope it helped u a lot

8 0
3 years ago
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