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trapecia [35]
3 years ago
12

1 CHEM QUESTION PLEASE HELP What is meant by the phrase, “conservation of mass”?

Chemistry
1 answer:
Pavel [41]3 years ago
5 0
It is a principle that states that mass cannot be loss or gained in a chemical reaction.
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A formula for a cough syrup contains 60 mg of codeine per fluid ounce. How many mg are contained in one teaspoonful?
Kruka [31]

Answer : The amount of codeine in one teaspoonful is, 30 mg

Explanation : Given,

Amount of codeine per fluid ounce = 60 mg

Now we have to determine the amount of codeine present in one teaspoonful.

As we know that:

1 teaspoonful = 0.5 fluid ounce

As, the amount of codeine per fluid ounce = 60 mg

So, the amount of codeine 0.5 fluid ounce = \frac{0.5}{1}\times 60mg=30mg

Thus, the amount of codeine in one teaspoonful is, 30 mg

7 0
3 years ago
When a strong base reacts with an acid what is always produced?
Y_Kistochka [10]
This really depends. When a strong base reacts with a strong acid, a neutralization reaction occurs, making H2O and neutralizing the pH of the substance. However, when a strong base reacts with a normal acid, nothing is always produced, and the solution will be slightly less basic.
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3 years ago
What is the volume of the sample at stp ?
Natasha2012 [34]
At stp the volume is 22.4 L .

<span>hope this helps!</span>
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3 years ago
Which of the following the parts of the cell is made up of lipoprotein? A)ribosomes B)plasma memeberanes C)cell wall D)DNA​
svetoff [14.1K]

Answer:

the awnser is a ribosomes

Explanation:

7 0
2 years ago
Can somebody plz answer both these questions in this question thanks! only 2 sentences is fine :)
serg [7]

Answer:

Electricity is made at a generating station by huge generators. The current is sent through transformers to increase the voltage to push the power long distances.  The electrical charge goes through high-voltage transmission lines that stretch across the country.

3 0
2 years ago
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