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Aleks04 [339]
3 years ago
15

Each of the atoms in alkali earths metal Family( group 2) has ___ valence Electrons .

Chemistry
1 answer:
sweet [91]3 years ago
4 0

Answer:

the answer is 2 valence electrons

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List the objects from the smallest to the largest mass.
ddd [48]

i need help ls i thank its book 500 grams

3 0
3 years ago
MoO3+Al = ???<br> What are the products?
tigry1 [53]

Answer:

The electronic structures of pentacene/MoO3/Al and pentacene/Al were studied using in situ photoemission spectroscopy. The secondary electron cutoffs, highest occupied molecular orbitals (HOMOs) and core level changes were measured upon deposition of the pentacene and MoO3 to study the electronic structures at the interface.

Hope it helps!

3 0
3 years ago
What is the concentration of a solution with a volume of 1.38 mL that contains 17.36
Elden [556K]

Answer:

C = 107.97 mol/L

Explanation:

Given data:

Volume of solution = 1.38 mL (1.38 mL× 1 L /1000 mL = 0.00138 L)

Mass of ammonium sulfite = 17.36 g

Concentration of solution =?

Solution:

We will calculate the number of moles of ammonium sulfite.

Number of moles = mass/molar mass

Number of moles = 17.36 g / 116.15 g/mol

Number of moles = 0.149 mol

Concentration:

C = n/V

C = concentration

n = number of moles of solute

v = volume in L

C = 0.149 mol / 0.00138 L

C = 107.97 mol/L

5 0
3 years ago
ClO(4)− Express your answer as a chemical formula.
Nimfa-mama [501]

ClO(4)− is regarded as perchlorate ion and are produced commercially in most situations as salts via industries and in the laboratory.

<h3>What is Perchlorate ion?</h3>

This ion is referred to as a monovalent inorganic anion and is obtained by deprotonation of perchloric acid. It is composed of chlorine and oxygen atoms in the ratio 1 to 4 respectively.

This has  32 valence electrons available in the Lewis structure and is used in the commercial production of solid rocket fuel.This ion has a molar mass of 99.451 g mol−1 and is used in different processes such as an oxidizer and to control static electricity during the process of food preservation in industries.

Therefore ClO₄− is also regarded as perchlorate ion and is the most appropriate choice.

Read more about Perchlorate ion here brainly.com/question/16895150

#SPJ1

3 0
2 years ago
**PLATO QUESTION, PLEASE ANSWER CORRECTLY**
Ivenika [448]
The corect answers will be:
1) A
2) B
3) D

Hope this helped :)
7 0
3 years ago
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