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professor190 [17]
3 years ago
9

6. What is a polyatomic ion? (You should also memorize the name, formula, and charge of the polyatomic ions listed in the lectur

e materials)
Chemistry
1 answer:
strojnjashka [21]3 years ago
6 0
A polyatomic ion is a group of elements that has a charge that is not 0. for example the charge of P04 is -3 
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Place a check next to each elementary reaction
Anna007 [38]

Answer: its A and C

Explanation:

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3 years ago
Rubidium (Rb) has two isotopes. Using the data in the table below,
Burka [1]

Answer:

85.6

Explanation:

(72 x 85) + (28 x 87)

-----------------------------

        100

= 85.56

= 85.6 (3 s.f.)

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3 years ago
What is Ka for H3PO4(aq) ⇌ H+(aq) + H2PO4-(aq) a. Ka = (H3PO4)/(h+)(H2PO4-) B. Ka = (H3PO4)(H+)(H2PO4-) C. Ka = (H3PO4)/(H+)(H2P
Eva8 [605]

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The answer is option d.

Ka = (H+)(H2PO4-)/(H3PO4)

Hope this helps.

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3 years ago
How are the properties of high-tech ceramics the same as those of traditional clay ceramics, and how are they different? Refer t
algol13

Modern ceramics have all properties which have traditional ceramics for example hardness, high resistance to chemicals, and heat and they are different from traditional ceramic because have superior magnetic are or electrical properties.

One example is classical ceramic which is an insulator but when is dopped with ZnO it becomes a good conductor at high voltages.

to know more about clay ceramics and high tech ceramics here

brainly.com/question/17192744?referrer=searchResults

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3 0
2 years ago
Which of the following would be part of an aquatic ecosystem?
Masja [62]

Answer:

Aquatic ecosystem has two components -

  1. Biotic components

     2.Abiotic components

temperature and amount of sunlight are the part of abiotic component .

while living things like sponges and planktons are the biotic components of ecosystem.

Explanation:

aquatic components are of two types-

freshwater ecosystem( lakes and ponds, river and streams)

marine ecosystem(ocean ecosysyem, estuaries)

planktons-

planktons are found in limnetic zone, availability of sunlight is much here. planktons  are zooplanktons and phytoplanktons  are very important link in aquatic ecosystem.

sponges

In marine water, the <em>benthic zone</em> is the area below the<em> pelagic zone.</em> Here temperature decreased because of less light perception. This zone is very nutrient rich so organisms which are present here are- bacteria, fungi, sea anemone, sponges and some fishes.

3 0
3 years ago
Read 2 more answers
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