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barxatty [35]
3 years ago
6

Name the following compounds:

Chemistry
1 answer:
Vesnalui [34]3 years ago
7 0

Answer:

why

Explanation:

why don't we need to answer, did you already found the answers

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A person buildirig an aquarium would benefit from adding a livce rock to their aquarium because ?
spayn [35]
It introduces a diverse array of bacteria, algae, and invertebrates to the closed marine environment and functions as a superior biological filter
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3 years ago
Why is it important that there is only a small amount of water in the beaker
natita [175]

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because too much can neutralise the results

4 0
4 years ago
Read 2 more answers
Opal is a hydrated form of silica. If a laboratory analysis of a sample of opal reveals it to contain29.2% Si, 33.3%O, and 37.5%
ZanzabumX [31]
Let us assume that there is a 100g sample of Opal. The masses of each element will be:
29.2g Si
33.3g O
37.5g H2O
Now we divide each constituent's mass by its Mr to get the moles present
Si: (29.2 / 28) = 1.04
O: (33.3 / 16) = 2.08
H2O: (37.5 / 18) = 2.08
Now we divide by the smallest number and obtain:
Si: 1
O: 2
H2O: 2
Thus, the empirical formula of Opal is:
SiO2 . 2H2O
8 0
4 years ago
Ne, Ar, and Kr have which properties in common? Group of answer choices
jasenka [17]

Answer:

Ne, Ar, and Kr are gases at STP, unreactive, and are generally monatomic.

Explanation:

they are unreactive and monoatomic and thats why have a very low boiling point.

6 0
3 years ago
True or false: the Molecules in a solid have MORE thermal energy than the molecules in a gas?
katrin2010 [14]

That's false. Because, the molecules in a solid are compacted too tightly together that they don't have all that extra space that a gas would. Molecules in a gas would have more thermal energy because they have all that space to move around in. The more they move around, the hotter it gets. The less that they move around, and the more that they put and packed together, the colder it's going to be.

Hope this helped you!! (:

3 0
3 years ago
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