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ololo11 [35]
3 years ago
7

Of the elements Fe, Hg, U, Te, and Y, which is considered a Group A element?

Chemistry
1 answer:
serg [7]3 years ago
5 0

Answer:

Te is considered a Group A element.

Explanation:

Fe, Hg and Y belong to Group B.

U is a transition element.

<em>Te is the only element that belong to Group A.</em>

I hope I've solved your doubt.

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Name and describe three measures of central tendency used to summarize data.​
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3 years ago
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Answer:

D.Salad

Explanation:

A mixture is a substance that combines two or more substance that are physically combined. A mixture can be easily seperated by a physical means . A mixture is the combination of various substances that are not chemically combined .Examples of mixtures are cake and salad . The  cake contains various substances like egg, flour and sugar. This mixture can be easily separated into it individual entities by a physical means .

Base on the option the only mixture among the option is salad . Salad is a a mixtures that combines substances like tomatoes , fruits and vegetable. The individual substances that makes up the salad can be easily separated.

Sugar is a compound . Water is a compound as it contains two elements and potassium is an element.

6 0
3 years ago
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. How many grams of magnesium chloride can be produced by reacting 2 moles of chlorine gas with excess magnesium bromide? ____Cl
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Answer: 190 g of magnesium chloride can be produced by reacting 2 moles of chlorine gas with excess magnesium bromide.

Explanation:

The balanced chemical reaction is;

Cl_2+MgBr_2\rightarrow MgCl_2+Br_2

Cl_2 is the limiting reagent as it limits the formation of product and MgBr_2 is the excess reagent.

According to stoichiometry :

1 mole of Cl_2 produces = 1 mole of MgCl_2

Thus 2 moles of Cl_2 will produce=\frac{1}{1}\times 2=2moles  of MgCl_2

 Mass of MgCl_2=moles\times {\text {Molar mass}}=2moles\times 95g/mol=190g

Thus 190 g of magnesium chloride can be produced by reacting 2 moles of chlorine gas with excess magnesium bromide

5 0
3 years ago
A piece of copper is placed into silver nitrate. Given that the activity of copper is greater than that of silver, what will hap
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Answer:

D

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When a scientist shares her findings with other scientists she is
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communicating results

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