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
Leona [35]
3 years ago
8

In the periodic table, the period number indicates

Chemistry
1 answer:
sergey [27]3 years ago
8 0

Answer: option B. The number of the outer most energy level for elements in that period

Explanation:

You might be interested in
Calculate the mass of 9.75x1021 atoms of helium.
Leya [2.2K]

Answer: 99.5475

Hope this helps(:

5 0
2 years ago
Approximately how many mineral species have scientists identified?
nekit [7.7K]
I think it’s 5000 because it says that their is over 4,124 valid species of minerals.
3 0
3 years ago
Read 2 more answers
What mass of powdered drink mix is needed to make a 0.5 M solution of 100 mL?
Maru [420]

Answer:

There is 17,114825 g of powdered drink mix needed

Explanation:

<u>Step 1 :</u> Calculate moles

As given, the concentration of the drink is 0.5 M, this means 0.5 mol / L

Since the volume is 100mL, we have to convert the concentration,

⇒0.5 / 1   =  x /0.1    ⇒ 0.5* 0.1  = x = 0.05 M

This means there is 0.05 mol per 100mL

e

<u>Step 2 </u>: calculate mass of the powdered drink

here we use the formula n (mole) = m(mass) / M (Molar mass)

⇒ since powdered drink mix is usually made of sucrose (C12H22O11) and has a molar mass of 342.2965 g/mol.

0.05 mol = mass / 342.2965 g/mol

To find the mass, we isolate it ⇒0.05 mol * 342.2965 g/mol = 17,114825g

There is 17,114825 g of powdered drink mix needed

3 0
3 years ago
Read 2 more answers
PLSSS HELP
lions [1.4K]
Sun, use fusion to combine hydrogen atoms into helium atoms,
5 0
3 years ago
Read 2 more answers
I. Choose the letter of the correct answer. Write your answer on a separate sheet of paper.
omeli [17]

Answer:

,,,

Explanation:

..

6 0
2 years ago
Other questions:
  • A balloon filled with air has a volume of 4.24 liters at 23.00°
    6·2 answers
  • What is the best example of electromagnetic energy in everyday life
    10·2 answers
  • How many grams of iron metal do you expect to be produced when 265 grams of an 84.5 percent by mass iron (II) nitrate solution r
    9·2 answers
  • A chemist test new mixtures for paint samples and decides one mixtuees stickiness makes is worthless
    8·1 answer
  • Any entrée can be labeled "healthy" on a menu as long as it contains natural ingredients. True False
    15·2 answers
  • How does the structure of the cell membrane help the cell regulate water?
    7·1 answer
  • If an atom has twelve electrons, how many electrons are in the n=1 energy level? How many electrons are in the n=2 energy level?
    5·1 answer
  • How do you reduce ester to carboxylic acid?
    8·1 answer
  • Biologists classify all living things into __ kingdoms.<br> A.five<br> B.three<br> C.six<br> D.seven
    10·2 answers
  • What is the name of the molecular covalent compound kbr.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!