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Shtirlitz [24]
3 years ago
7

24. Element X has five valence electrons, element Y has one valence electron, and element Z has one valence electron. Which two

of these elements are most likely to have similar properties? Explain your answer.
Chemistry
2 answers:
Nataly_w [17]3 years ago
8 0

x and z dont have same velence electrons.... x and y have same


natka813 [3]3 years ago
3 0
Elements Y and elements Z would have similar properties due to the fact that they both posses the same number of valence electrons. They both have a single valence electron that determines the corresponding elements bonding properties and the fact that it can either donate 1 valence electron to produce an ion that would be attracted to another atom, that is also an ion. Assuming that these elements are group 1 elements, they do not undergo in covalent bonding.
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BabaBlast [244]

The methyl orange  would be the best indicator for titrating the weak base sodium bicarbonate using HCl titrant

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In acid base titration at the end point the amount of the acid becomes chemically equivalent to the amount of the base present .The methyl orange  would be the best indicator for titrating the weak base with strong acid .

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1 year ago
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How many grams of sodium bromide must be dissolved in 400.0 g of water to produce a 0.500 molar solution?
kiruha [24]

Answer:

D. 20.6g

Explanation:

Molarity is defined as ratio between moles of solute (sodium bromide, NaBr) per liter of water.

As density of water is 1g/mL; volume of 400.0g of water is 400.0mL = 0.4000L.

That means 0.400L of 0.500M solution contains:

0.400L × (0.500mol / 1L) = <em>0.200moles of sodium bromide</em>.

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0.200mol NaBr × (102.9g/mol) = 20.6g of NaBr

Right answer is:

<em>D. 20.6g</em>

8 0
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Answer:
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