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3 years ago

Suppose you could watch radioactive atoms decay. It would probably get quite boring as time went by. Why?

Chemistry

2 answers:

Trava [24]3 years ago

7 0

Answer:

a,b,c,d,e

Explanation:

just did it on ed 2020

kari74 [83]3 years ago

6 0

Answer: the answer should and most definitely be D.

Explanation: I mean think about it after a while only a few radioactive nuclei are left which means it will dye down after a while which also makes it very boring hope this helps :)

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Question 8 (9 points) <br><br>Match the lab equipment with its purpose

Deffense [45]

Answer:

$\sf \boxed{4} \mapsto Pipet$

$\sf\boxed{7}\mapsto Test \:tube \: rack$

$\sf\boxed{3}\mapsto Test\: table$

$\sf\boxed{5}\mapsto Scoopula$

$\sf\boxed{1}\mapsto Graduated\: cylinder$

$\sf\boxed{9}\mapsto Bunsen \:burner$

$\sf\boxed{2}\mapsto Beaker$

$\sf \boxed{8}\mapsto Spot\: plate$

$\sf\boxed{6}\mapsto Goggles$

Explanation:

Pipet is used to dispense a very small amount of liquid.

Test tube rack is used to hold multiple test tubes at the same time.

Test Table is used to view chemical reactions or hold or heat small amounts of substance.

Scoopula is used to dispense chemicals from a larger container.

Graduated cylinder is used to measure volume very precisely.

Bunsen burner is used to heat objects.

Beaker is used to transport heat or store substance.

Spot plate is used to observe the color changes of small quantities of a reacting mixture.

Goggles are used to protect the eyes from flying objects or chemical splashes.

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7 0

3 years ago

What is the measure of the efficiency of a chemical reaction? percent yield annual yield actual yield theoretical yield

artcher [175]

Answer:

Precent yield

Explanation:

This is takes into account how much of a substance should have been created (theoretical yield) and compares it to what was actually created (the actual yield).

6 0

4 years ago

Find the number of chromium ions in 3.5 mol of chromium ions.

Ray Of Light [21]

Answer:

2.1 x 10^24 Cr ions

Explanation:

You need to multiply the 3.5 mol by the Avogrado's number (6.022 x 10^23) to get your answer.

3 0

3 years ago

1.this substance is a natural non-living material with a uniform structure throughout

vovikov84 [41]