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4 years ago

Which element would you expect to have the largest radius based on the Periodic Table?

Chemistry

1 answer:

xz_007 [3.2K]4 years ago

7 0

Answer:

Lead

Explanation:

As you move down the periodic table, the elements get larger and gain additional electron shells, increasing the radius. In order, they are on the table as Chlorine, Selenium, Lead.

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2 Use the chart to answer the question. Solubility Curves of Various Salts 180 160 140 120 100 80 KNO3 in g NaCl in g KCl in g A

VMariaS [17]

According to the information in the graph, it can be inferred that the amount of solute that will precipitate out of solution at 20°C is 130 grams.

<h3>How to calculate the amount of solute that precipitates out of solution?</h3>

To calculate the amount of solute that precipitates out of solution we must identify the solute data at 80°C and 20°C and identify the difference as shown below:

Quantity of solute at 80°C: 170 grams.
Quantity of solute at 20°C: 40 grams.

170 grams - 40 grams = 130 grams

According to the above, the amount of solute that will precipitate out of solution due to the change in temperature is 130 grams of KNO3.

Note: This question is incomplete because the graph is missing. Here is the graph

Learn more about solute in: brainly.com/question/7932885

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2 years ago

ANSWER FAST PLZ 25 POINTS!!!!!!!!!!!!!!!

Viktor [21]

Answer:

Explanation:

not to positive but I hope this is correct ‍♀️

4 0

4 years ago

According to the equation for this chemical reaction, what does the 2 in front of 2Ag tell us?

storchak [24]

The number of molecules involved in the reaction, in this case, the number of Ag atoms involved.

3 0

4 years ago

Read 2 more answers

Predict the size of a sodium atom

Margaret [11]

Answer:

227 pm

Explanation:

8 0

2 years ago

A chemist reacts 30.0 mL of 5.6 M HCl with an excess of Mg(OH)2 How many grams of magnesium will be produced

Mkey [24]

Answer:

2.042 g

Explanation:

The reaction that takes place is:

2HCl + Mg(OH)₂ → Mg²⁺ + 2Cl⁻ + 2H₂O

First we calculate how many HCl moles were added, using the given volume and concentration:

30 mL ⇒ 30 / 1000 = 0.030 L

5.6 M * 0.030 L = 0.168 mol HCl

Then we convert HCl moles into Mg²⁺ moles, using the stoichiometric coefficients:

0.168 mol HCl * $\frac{1molMg^{+2}}{2molHCl}$ = 0.084 mol Mg⁺²

Finally we convert Mg moles into grams, using its molar mass:

0.084 mol Mg⁺² * 24.305 g/mol = 2.042 g

3 0

3 years ago