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My name is Ann [436]
2 years ago
10

Đơn chất nào sau đây tác dụng với dung dịch axit sunfuric loãng sinh ra khí ?

Chemistry
1 answer:
viva [34]2 years ago
6 0

Answer:

C. Al

Explanation:

2Al+ 3H2SO4(l)------> Al2(SO4)3+ 3H2

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Suppose you are working in a chemistry lab and trying to make a solution of a substance called Sodium Chloride (which is a solid
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Answer:

a weighing balance, a measuring cylinder, a spatula, a beaker/flask, and a stirrer

Explanation:

The lab apparatus that would be needed to prepare a solution of sodium chloride would be <em>a weighing balance, a measuring cylinder, a spatula, a beaker/flask, and a stirrer.</em>

The weighing balance would be used to weigh out the required amount of sodium chloride. The beaker or flask would be placed on the weighing balance and its weight zeroed. The spatula would then be sued to take out the sodium chloride from its container into the beaker till the required amount is reached. The measuring cylinder would then be used to measure out the required volume of water which would be added to the salt in the beaker. The stirrer would then be used to stir the mixture in order for the salt to dissolve.

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What kinds of substances besides water can be involved in hydrogen bonding?
MrMuchimi
<span>Kind of substance besides water:
The best example of hydrogen bonding excluding water is DNA. The two strands of polymers are connected by hydrogen bonds between the nucleotide bases</span>.
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