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Nutka1998 [239]
3 years ago
9

What is every cell that contains certain structures that perform specialized functions

Chemistry
1 answer:
Andrej [43]3 years ago
8 0
I think this one is the organelles.
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What is the molarity of a sodium hydroxide solution containing 2 moles of NaOH with a volume of .5L?
Maksim231197 [3]

Answer:

0.4M NaOH

Explanation:

Molarity, M, is an unit of concentration widely used defined as the ratio between moles of solute (In this case, NaOH) and volume of solution in liters.

As the solution contains 2 moles of NaOH-Moles of solute- in 5L of solution, the molarity is:

2 moles NaOH /  5L =

<h3>0.4M NaOH</h3>
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2 years ago
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A cuz a heterogeneous mixture is no uniform

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Which components can be found in both comparative and experimental investigations, but are never found in descriptive investigat
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HYPOTHESIS, VARIABLES, AND CONTROL GROUP

Explanation:

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3 years ago
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Is it likely that an atom of Te would substitute for an atom of O in a solid compound? yes no indeterminate
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The correct answer is no.

Explanation:

Tellurium is a chemical element denoted by Te and having atomic number 52. It is mildly toxic, brittle, silver-white, and rare metalloid. The element is chemically related to sulfur and selenium, all three of which are chalcogens.  

Oxygen is a chemical element, that is, a substance, which comprises only one kind of atom. Its official chemical symbol is O and exhibits an atomic number 8, this signifies that an atom of oxygen possesses eight protons in its nucleus. In the given question, it is not likely that tellurium would replace for oxygen, as the two elements are highly unlike.  

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3 years ago
Element A has a half-life of 10 days. A scientist measures out 200 g of this substance. After 30 days has passed, the scientist
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N=N₀*2^(-t/T)

N₀=200 g
T=10 d
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N=200*2^(-30/10)=25 g

25 g will remain
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