1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jolli1 [7]
3 years ago
14

(hurry will give brainliest)What element that has 5 Valence Electrons and 4 energy levels?

Chemistry
1 answer:
abruzzese [7]3 years ago
8 0

Answer:

arsenic (As)

Explanation:

You might be interested in
How many H2O molecules are in 183.2 grams of H20 gas?
jek_recluse [69]

Answer: There are 61.24 \times 10^{23} molecules present in 183.2 grams of H_{2}O gas.

Explanation:

Given: Mass = 183.2 g

Number of moles is the mass of substance divided by its molar mass.

As molar mass of water is 18 g/mol. Therefore, moles of H_{2}O are calculated as follows.

Moles = \frac{mass}{molar mass}\\= \frac{183.2 g}{18 g/mol}\\= 10.17 mol

According to the mole concept, there are 6.022 \times 10^{22} molecules present in one mole of a substance.

Hence, molecules present in 10.17 moles are calculated as follows.

10.17 mol \times 6.022 \times 10^{23}\\= 61.24 \times 10^{23}

Thus, we can conclude that there are 61.24 \times 10^{23} molecules present in 183.2 grams of H_{2}O gas.

6 0
3 years ago
Asolution has a pH of 8. Which best describes the solution?
alekssr [168]

Answer:

a weak base

Explanation:

pH levels:

0-3 Strong Acid

4-6 Weak Acid

7 Neutral

8-10 Weak Base

11-14 Strong Base

6 0
3 years ago
Read 2 more answers
What change takes place in a nuclear fusion reaction?
irakobra [83]
A nuclear reaction<span> in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a new type of atomic nucleus.
      Hope this helps :)
</span>
7 0
3 years ago
Read 2 more answers
The answer please thank you
otez555 [7]

Answer:

B

Explanation:

5 0
3 years ago
Need help, please. :)
wolverine [178]

A change of one unit on the pH scale represents a change in the concentration of hydrogen ions by a factor of 10, a change in two units represents a change in the concentration of hydrogen ions by a factor of 100. Thus, small changes in pH represent large changes in the concentrations of hydrogen ions.

6 0
3 years ago
Other questions:
  • A woman lives several miles from this explosion. Which statement is MOST LIKELY true? A) She will see the explosion before she h
    5·2 answers
  • A compound contains potassium, nitrogen, and oxygen. the experimental analysis gave values of 45.942 % potassium and 16.458 % ni
    15·2 answers
  • At what temperature does uranium hexafluoride have a density of 0.5820 g/L at 0.5073 atm?
    6·1 answer
  • Does anyone know what order?
    7·2 answers
  • Fill in the blank
    11·1 answer
  • Please help:/ I can’t figure out the answer
    6·1 answer
  • Which of the following equations correctly describes how to calculate net income? a. net income = (cost of goods sold) - (net sa
    5·1 answer
  • PLS HELP ASAP <br><br> How does the mass of an object affect its force?
    5·1 answer
  • Please help, it's a task in science and I'm really bad at this subject.
    8·1 answer
  • An increase in ocean salinity can increase ____, creating a current.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!