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horsena [70]
3 years ago
11

5 fact about the periodic table

Chemistry
1 answer:
attashe74 [19]3 years ago
3 0

Answer:

-There are 118 elements

-There are 8 groups on the periodic table

-The first groups are very reactive and called alkali metals

-The last group is called noble gases which are not reactive

-Transition metals are mixed with nonmetals and metals

Explanation:

Hoped this helps btw

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7 0
4 years ago
A student is given an antacid tablet that weighed 5.6832 g. The tablet was crushed and 4.3628 g of he antacid was added to 200 m
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Answer:

a) 8.33 ml of the original stomach acid is neutralized

b) 191.67 ml of the stomach acid was neutralized

c)  249.68 ml acid would be neutralized by the original tablet

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a) how much of the stomach acid had been neutralized in the 25 mL sample wich was titrated?

25.5 ml of a NaOH solution is equivalent to 25.00 ml of the original stomach acid

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This means the antacid neutralized = 200 ml - 8.33 ml = 191.67 ml

c) how much stomach acid would have been neutralized by the original 5.6832 g tablet

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5.6832g antacid * (191.67 ml acid / 4.3628 g antacid) = 249.68 ml acid

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