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cluponka [151]
3 years ago
8

Based on the electron configuration of the two

Chemistry
2 answers:
Whitepunk [10]3 years ago
4 0

Answer:

A

Explanation:

Cuz the when you pair Li and Cl, it becomes LiCl (it has 1:1 ratio)

Darya [45]3 years ago
3 0

Answer:

A. 1 : 1

Explanation:

First off, it's important to identify the groups both elements belong to. This would enable us know the number of electrons that is needed to be lost or gained to reach it's octet configuration.

To identify the group from the electronic configuration, add the powers of the highest number present,

In Lithuium, the highest number is 2. It's power is 1. So it belongs to group 1. Hence it needs to lose it's one valence electron to reach it's octet state.

In Chlorine, the highest number is 3. The powers ( 3S and 3P) are 2 and 5. belongs to group 7. Hence it needs to gain one more electron to complete its octet configuration.

So what we have now is;

Li⁺ + Cl⁻

Since both charges cancels out, we have LiCl as the product compound. Hence the ratio of metal cationic (+) atom to nonmetal anionic (-) atom in the compound is 1 : 1

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3 The volume of a gas is 50.0 mL at 20.0 K. What will be the new
Damm [24]

Answer:

C. 4.00 K

Explanation:

We can solve this using Charles's Law of the ideal gas. The law describes that when the pressure is constant, the volume will be directly proportional to the temperature. Note that the temperature here should only use the Kelvin unit. Before compressed, the volume of the gas is 50ml(V1) and the temperature is 20K (T1). After compressed the volume becomes 10ml(V2). The calculation will be:

V1 / T1= V2 / T2

50ml / 20K = 10ml / T2

T2= 10ml/ 50ml * 20K

T2= 4K

7 0
3 years ago
A chemical company makes two brands of antifreeze. the first brand is 70% pure antifreeze, and the second brand is 95% pure anti
madreJ [45]

Answer is: 56 gallons of 70% antifreeze and 84 gallons of 95% antifreeze.


ω₁ = 70% ÷ 100% = 0.7; 70% pure antifreeze.

ω₂ = 95% ÷ 100% = 0.95.

ω₃<span> = 85% ÷ 100% = 0.85.
V</span>₁ = ?; volume of 70% antifreeze.

V₂ = ?; volume of 95% antifreeze.<span>
V</span>₃ = V₁ + V₂<span>.
V</span>₃ = 140 gal.

V₁ = 140 gal - V₂<span>.
ω</span>₁ · V₁ + ω₂ ·V₂ = ω₃ · V₃.

0.70 · (140 gal - V₂) + 0.95 · V₂ = 0.85 · 140 gal.

98 gal - 0.7V₂ + 0.95V₂ = 119 gal.

0.25V₂ = 21 gal.

V₂ = 21 gal ÷ 0.25.

V₂ = 84 gal.

V₁ = 140 gal - 84 gal.

V₁ = 56 gal.

4 0
3 years ago
How do the elements in each group differ? How are they similar?
bulgar [2K]

Answer:

All the elements in one group have the same number of valence electrons. ... Since elements in a group have the same number of valence electrons, they behave similarly in chemistry. An example would be the alkali metals (excepting hydrogen. Hydrogen is in this group only because it has one valence electron.

Explanation:

5 0
2 years ago
Read 2 more answers
If an object is accelerating at a rate of 25 m/s2, how long (in seconds) will it take to reach a speed of 550 m/s? (Assume an in
V125BC [204]

Answer:

22s

Explanation:

Given parameters:

Acceleration  = 25m/s²

Final velocity = 550m/s

Initial velocity  = 0m/s

Unknown:

Time taken  = ?

Solution:

To solve this problem, we are going to use one of the motion equations:

                 v  = u + at

v is the final velocity

u is the initial velocity

a is the acceleration

t is the time taken

                  550 = 0 + 25 x t

                  550  = 25t

                    t  = 22s

8 0
3 years ago
Helpppp plzzz (will mark brainlest)
grigory [225]

Answer:

hydrogen and cloride + hydrogen

4 0
3 years ago
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