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3 years ago

Which response includes all the following that are properties of most metals, and no other properties?

Chemistry

1 answer:

oksian1 [2.3K]3 years ago

4 0

Answer:

The correct options are: Z1) They tend to form cations, and Z4) They tend to form ionic compounds when they combine with the elements of Group VIIA.

Explanation:

The chemical elements that have a tendency of losing their valence electrons and are generally present on the left-side of the periodic table are known as metals.

The general characteristics of metals are malleability, ductility, lustre, high thermal and electrical conductivity.

The metals readily lose their valence electrons present in their valence electron shell to form positively charged ions called cations and thus have low ionization energy.

They also tend to form ionic compounds or salts with the reactive non-metals belonging to the Group VIIA of the periodic table.

Therefore, Z1 and Z4 are the properties of most metals.

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A certain reaction is thermodynamically favored at temperatures below 400. K, but it is not favored at temperatures above 400. K

Ilya [14]

Answer:

-0.050 kJ/mol.K

Explanation:

A certain reaction is thermodynamically favored at temperatures below 400. K, that is, ΔG° < 0 below 400. K

The reaction is not favored at temperatures above 400. K, that is. ΔG° > 0 above 400. K

All in all, ΔG° = 0 at 400. K.

We can find ΔS° using the following expression.

ΔG° = ΔH° - T.ΔS°

0 = -20 kJ/mol - 400. K .ΔS°

ΔS° = -0.050 kJ/mol.K

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3 years ago

Read 2 more answers

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Angelina_Jolie [31]

35 Celsius minus the average 20 Celsius. going to be 15. let me know if u need anything else.

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3 years ago

The reactant concentration in a second-order reaction was 0.560 m after 115 s and 3.30×10−2 m after 735 s . what is the rate con

Aloiza [94]

Use the formula for second order reaction:

$\frac{1}{C} = \frac{1}{C_0} + kt$

C = concentration at time t
C0 = initial conc.
k = rate constant
t = time

1st equation : $\frac{1}{0.56} = \frac{1}{C_0} + 115k$

2nd Equation: $\frac{1}{0.033} = \frac{1}{C_0} + 735k$

Find $\frac{1}{C_0}$ from 1st equation and put it in 2nd equation:

$\frac{1}{0.033} = \frac{1}{0.56} - 115k + 735k$

$\frac{1}{0.033} - \frac{1}{0.56} = 620k$

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$y = 5cos(\frac{2\pi }{6} x)$

Explanation:

You can put that equation into a program like desmos on your browser and take a screenshot or use windows snippet tool.

Equation of a Wave: y = Acos(((2*pi)/B)x)

$y = Acos(\frac{2\pi }{B} x)$

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3 years ago

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Kobotan [32]

Answer:

Which is the ph of a solution in which the concentration of hydroxide ion is greater than the concentration of hydrogen ion?

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Explanation:

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