CHEMISTRY HIGH SCHOOL

When a reaction occurs between atoms with ground state electron configuration 1s2 2s1 and 1s2 2s2 2p5 the predominant type of bond formed is

Answers

Answer 1
Answer:

Answer:

Ionic

Explanation:

Step 1: Define

1s²2s¹ is Lithium (Li)

1s²2s²2p⁵ is Chlorine (Cl)

Step 2: RxN

2Li (s) + Cl₂ (g) → 2LiCl (s)

Step 3: Identify

LiCl is a metal and a non-metal bonded together. Therefore, it will be an ionic bond. The Lithium would transfer it's electron to Chlorine (since it wants a full outer shell 0f 8 and it currently as 7) and form a salt.

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What is the molarity of a 10 L solution containing 5.0 moles of solute?
PLEASE HELP!! Perform the followingmathematical operation, andreport the answer to theappropriate number ofsignificant figures.5.1 – 2.3685 = [?]
How do the energy and the most probable location of an electron in the third shell of an atom compare to the energy and the most probable location of an electron in the first shell of the same atom?(1) In the third shell, an electron has more energy and is closer to the nucleus.(2) In the third shell, an electron has more energy and is farther from the nucleus.(3) In the third shell, an electron has less energy and is closer to the nucleus.(4) In the third shell, an electron has less energy and is farther from the nucleus.

A solution with a pH of 8.0 isa. acidic.
b. neutral.
c. weakly basic.
d. strongly basic.

Answers

A solution with a pH of 8.0 is weakly basic. Thus ,the correct option is C.

The pH scale gives the measure of the acidity or basicity of a solution. It ranges from 0 to 14, where a pH of 7 is considered neutral. Solutions which have a pH less than 7 are acidic, while solutions which have  a pH greater than 7 are basic.

In this case, since the pH is 8.0, which is greater than 7, the solution is basic. However, it is important to note that the basicity of the solution is weak, as it is only slightly above neutral.

For example, think of a pH of 8.0 as being similar to water from a freshwater lake. It's not strongly basic like bleach or ammonia, but it still has a slightly basic nature compared to a neutral solution.

Thus, the correct option is C.

Learn more about pH,here:

brainly.com/question/2288405

#SPJ5
c. weakly basic. the higher the pH, the more basic/ alkalo

What is the mass of NH4Cl that must dissolve in 200. grams of water at 50.°C to make a saturated solution?(1) 26 g (3) 84 g
(2) 42 g (4) 104 g

Answers

Answer: It's 104 g

Explanation: yes
at 50ºC:

50 g NH₄Cl----------------- 100 g (H₂O)
?  mass NH₄Cl------------- 200 g (H₂O)

mass NH₄Cl = 200 . 50 / 100

mass 

How many moles of atoms are in 5.00 g of 13C

Answers

0.384 moles of atoms are in 5.00 g of ¹³C of isotope.

How we calculate moles?

Moles of any substance will be calculate by dividing the given mass of the substance to the molar mass of that substance.

In the question given that:

Given mass of carbon = 5grams (because isotope of carbon is present ¹³C)

Molar mass of carbon = 13g/mol (because isotope of carbon is present ¹³C)

Moles of carbon = 5grams / 13g/mol

Moles = 0.384 moles

Hence, 0.384 moles is the required moles.

To know more about moles, visit the below link:

brainly.com/question/300875
  Mr = 13 g / mol 
mass = 5 g 
Mol = 5/13 mol :)

in the equation 2kclo3 → 2kcl + 3o2, how many moles of oxygen are produced when 3.98 mol of kclo3 decompose completely?

Answers

 2 KClO₃=  2 KCl + 3 O₂

2 moles KClO₃ -------> 3 moles O₂
3.98 moles KClO₃ -----> ?

moles O₂ = 3.98 x 3 / 2

moles O₂ = 11.94 / 2

= 5.97 moles of O₂

hope this helps!

Which pair of nuclei can undergo a fusion reaction?a) uranium-238 and lead-208
b) hydrogen-2 and hydrogen-3
c) zinc-64 and calcium-44 d) potassium-40 and cadmium-113

Answers

The correct answer is B. Fusion only happens between small atoms. Thus, hydrogen-2 and hydrogen-3 can undergo fusion. Fusion reaction happens when two or more nuclei combine or collide to form an element with a higher atomic number. In this process, some of the matter of the fusing nuclei is converted to energy.

Write this number showing three significant figures. Remember to round. 10,411

Answers

10,400 Is the answer
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