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
andre [41]
3 years ago
6

Number 72 I need help

Chemistry
1 answer:
Mashutka [201]3 years ago
7 0
A. Cs - 55 electrons, 55 protons, 77 neutrons
B. Co - 27 electrons, 22 protons, 32 neutrons
C. Tm - 69 electrons, 69 protons, 94 neutrons
D. Zn - 30 electrons, 30 protons, 40 neutrons

For any neutral atom, protons = electrons = atomic number. Neutrons = atomic mass - atomic number.
You might be interested in
Calculate the molar mass of menthol, C10H20O
Cerrena [4.2K]

Answer:

C10H200

Explanation:

The molecular formula C10H20O (molar mass : 156.27 g/mol) may refer to: Citronellol. Decanal.

7 0
2 years ago
A student titrates 10.00 milliliters of hydrochloric acid of unknown molarity with 1.000 m naoh. it takes 21.17 milliliters of b
Dima020 [189]
Mole ratio for the reaction is 1:1
no of moles in NaOH that reacted= 1*21.17/1000=0.02117mols
 molarity of HCl=0.02117*10/1000
                         =2.117M
4 0
3 years ago
Cansjhdhsbdhajajajhsbsbshs hahahah she jansbsbsns haha be safe
V125BC [204]

Answer:

wait what?

Explanation:

brainliest pls

4 0
3 years ago
When shopping for major appliances, people should look for high energy-rating numbers because those items _____.
madam [21]
The answer would be :Use less energy
6 0
3 years ago
Read 2 more answers
An inflated balloon is left outside overnight. initially it has a volume of 1.84 L when the temperature is 293.4 K and the press
Mrac [35]

Answer:

ffff

Explanation:

5 0
3 years ago
Other questions:
  • Name 3 variables that afect a living systom
    13·1 answer
  • Preserving food by freezing controls reaction rates by
    13·1 answer
  • The liquid state of matter can be described as
    8·2 answers
  • Name of th molecule <br> 1. CH3CH2CHClCHBrCH3<br> 2.C=C-CH3<br> CH3CH=CHCH2
    15·1 answer
  • What effect does atmospheric pressure and altitude have on the boiling point of water?
    14·1 answer
  • Describe the attraction between 2 atoms as a result of sharing electrons
    14·1 answer
  • How large is a piece of gold with density 19.32g/cm and mass 318.97g
    7·1 answer
  • Find the volume of 0.100M hydrochloric acid necessary to react completely with 1.51g Al(OH)3.
    6·1 answer
  • PLEASE HELPPPP IM GIVING THE TEST RN
    11·1 answer
  • How would you distinguish benzoic acid and benzyl alcohol by their infrared spectra?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!