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Lena [83]
3 years ago
5

Hi friends!!!!!!!!!!!​

Chemistry
2 answers:
vodka [1.7K]3 years ago
6 0

Answer:

yo hi grand how it go nice guy

Anna11 [10]3 years ago
5 0

Answer:

hiiiiiiiii jsjsbsnjsja

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Mercury is often released into water bodies with industrial effluents, where it is then converted to the compound form methylmer
sergeinik [125]
 This is more to do with Bioaccumulation of mercury, where the mercury is absorbed into the issue of animals, and so animals higher in the food chain consume a lot of tissue matter hence increasing mercury content in their system.
7 0
3 years ago
Which substance cannot be decomposed by a chemical change?
coldgirl [10]

Copper substance cannot be decomposed by a chemical change.

<h3 />
  • When heated, the copper to carbonate breaks down into copper to oxide. The copper carbonate, which is dark in colour, releases carbon dioxide as well.Because they are the simplest chemically, elements cannot be broken down by chemical processes.

  • Elements are those pure compounds that cannot be broken down by reactions, heating, electrolysis, or other common chemical processes. Examples of elements are oxygen, gold, and silver. Its makeup stays the same, though.  One instance of a physical change is melting.  A physical change is when a sample of matter experiences a change in some of its qualities but not in its identity. Water turns into water vapour when it is heated.

Learn more about copper here:

brainly.com/question/493292

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6 0
1 year ago
How many grams of CaCl 2 are in .48 moles ?
Llana [10]

Answer:

We assume you are converting between moles CaCl2 and gram. You can view more details on each measurement unit: molecular weight of CaCl2 or grams This compound is also known as Calcium Chloride. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CaCl2, or 110.984 grams.

7 0
3 years ago
Read 2 more answers
What is the frequency of a wave that has 3 waves every five seconds?
Dmitry [639]

Answer:

Frequency, f = 0.6 Hz

Explanation:

We have,

Number of waves passing through a point are 3

Time for which the waves are passing is 5 seconds

It is required to find the frequency of a wave. The frequency of a wave is defined as the no of waves per unit time. So,

f=\dfrac{n}{t}\\\\f=\dfrac{3}{5}\\\\f=0.6\ Hz

So, the frequency of a wave is 0.6 Hz.

7 0
3 years ago
What method would a geologist use to determine the approximate age of a rock found in a newly discovered formation?
shtirl [24]
Rock paper scissor and that is on Albert Einstein , he made that up because he is so freaking smart so there you go have a wonderful day
8 0
3 years ago
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