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3 years ago

What are bonds in metals like? Please Answer - In full sentences (3)

2 answers:

8 0

Metallic bonding involves the sharing of valence electrons among a number of metal ions. The valence electrons stay delocalized and are not held tightly by any one metal cation. The nature of the metallic bonding is such that it attributes all metallic properties such as ductility, malleability and more. In metallic bonding there is electrostatic attraction between the delocalized electrons and the metallic cation.

NARA [144]3 years ago

7 0

Metallic bonds are bonds between 2 metals. Their electrons flow around freely unlike covalent or ionic bonds.

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Naturally occurring europium (Eu) consists of two isotopes was a mass of 151 and 153 . Europium-151 has an abundance of 48.03% a

Minchanka [31]

Answer:

151.94 u

Explanation:

The atomic mass of Eu is the <em>weighted average</em> of the atomic masses of its isotopes.

We multiply the atomic mass of each isotope by a number representing its relative importance (i.e., its <em>percent abundance</em>).

The atomic masses of Eu-151 and Eu-153 are 150.92 u and 152.92 u, respectively.

Set up a table for easy calculation.

0.4803 × 150.92 u = 72.472 u

0.5197 × 152.92 u = <u> 79.473 u </u>

TOTAL = 151.94 u

6 0

4 years ago

Read 2 more answers

If there is only one type of cation that can be formed from an element, what do we do with its name?

KatRina [158]

Answer:

Magnesium, Mgstart text, M, g, end text, is a group 2 element that will form 2+ cations. Because it usually forms cations of only one type, we don't need to specify its charge. We can simply refer to the cation in the ionic compound as magnesium. ... Therefore, the name for the compound is magnesium phosphide.

Explanation:

(this may or not be correct)

-also i finished that drawing you wanted :p-

6 0

3 years ago

Which of the following is the most polarizable: F2,H2, C2H6, or all of them?

lukranit [14]

C2H6 is the most polarizable and other two are non-polar molecules

4 0

3 years ago

A researcher studying the nutritional value of a new candy places a 4.10 g sample of the candy inside a bomb calorimeter and com

Ierofanga [76]

<h3>Answer:</h3>

5.078 Cal/g

<h3>Explanation:</h3>

We are given;

Mass of the sample of candy as 4.10 g

Change in temperature, °C = 2.1 °C

Heat capacity of the calorimeter, C = 41.50 kJ/K

We are required to calculate the nutritional Calories per gram of candy

Since the Candy sample was burnt

Then the heat lost by the candy is equivalent to the heat absorbed by the calorimeter.

Therefore, we need to calculate the heat energy absorbed by the calorimeter.

Quantity of heat = Heat capacity × Change in temperature

Q = C×Δt

Q = 41.50 kJ/K × 2.1 K

= 87.15 kJ

Therefore;

The heat released by 4.10 g of candy is 87.15 kJ

Calories per gram = Heat energy ÷ mass of candy

But; 1 kJ = 4.186 Calories

Therefore;

Number of calories = 87.15 kJ ÷ 4.186 Claories/kJ

= 20.82 Calories

Hence, calories per gram = 20.83 Cal ÷ 4.10 g

= 5.078 Cal per g

= 5.078 Cal/g

Thus, the nutritional Calories per gram of candy is 5.078 Cal/g

3 0

4 years ago

A student performs the following experiment.

jenyasd209 [6]

Answer:

yes

Explanation:

not becming

3 0

4 years ago