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Tems11 [23]
3 years ago
13

How many moles are there in 100 grams of Na3PO4?

Chemistry
1 answer:
kondaur [170]3 years ago
5 0
65.2 g x (1 mol/163.9 g) = 0.398 moles of Na3PO4.
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How would you obtain pure sugar from a mixture of sugar, charcoal, and copper?
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Pure sugar can be obtained from sugar solution by the process of crystallization. It involves heating which leads to evaporation of water to make the solution saturated. The saturated solution when left undisturbed convert to pure crystals of the sugar.
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1 year ago
Select all that identify a covalent bond.
saw5 [17]

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8 0
2 years ago
Please help me with chem, it would be very appreciated!
Lelu [443]

To determine the shapes of molecules, we must become acquainted with the Lewis electron dot structure. Although the Lewis theory does not determine the shapes of molecules, it is the first step in predicting shapes of molecules. The Lewis structure helps us identify the bond pairs and the lone pairs.

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5 0
3 years ago
Equal but opposite forces acting on an object results in what?
forsale [732]

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Action given and reaction taken

Also known as

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3 0
2 years ago
Among the alkali earth metals, the tendency to react with other substances
tatyana61 [14]
Answer: option <span>A) increases from bottom to top within the group.

Explanation:

</span>It is a known trend that the metallic character of the elements increase from let to right and from top to bottom.

The greater the metallic character the greater the reactivity of the metal.

So, the elements of the columns 1 and 2 are the most reactive metals and among them the elements at the bottom are yet more reactive.

<span>The higher reactivity of the metals that are lower in the periodic table is attributed to the greater total number of electrons.

The greater the total number of electrons the more reactive the metals as their outermost electrons (the valence electrons which are those that react) are located further from the nucleus and therefore they are held less strongly, which makes them react more easily.</span>
5 0
3 years ago
Read 2 more answers
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