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
Alchen [17]
3 years ago
14

A positively charged ion is called a cation which means there are more protons in the atom compared to the number of protons in

the neutral atom. True False
Chemistry
1 answer:
Lelechka [254]3 years ago
7 0
False False False False False False Ф
You might be interested in
Standard reduction potentials for nickel(II) and copper(II) The standard reduction potential for a substance indicates how readi
AleksandrR [38]

Answer:

The standard potential, E cell, for this galvanic cell is 0.5670V

Explanation:

Ni²⁺(aq)  +  2e⁻   →   Ni(s)           E red =  - 0.23V      ANODE

Cu²⁺(aq) +  2e-    →  Cu(s)          E red = + 0.337V    CATHODE

ΔE° = E cathode - E anode

ΔE° = 0.337V - (0.23V) = 0.5670 V

6 0
2 years ago
the red line observed in the line spectrum for hydrogen has 3.03x10^-19J, what is the wavelength, in nm, of this?
djverab [1.8K]

Answer:

λ = 6.5604 x 1016 nm

Explanation:

Given Data:

The energy of the red line in Hydrogen Spectra = 3.03 x 10-19

Formula to calculate Wave length

E= hv

Where E is Energy

h is Planks Constant = 6.626 x 10–34 J s

v is frequency

In turn

v= c/ λ

where c is speed of light = 3.00 x 108 m s–1

λ is wavelength = to find

Solution:

Formula to be Used:

E= hv………………………… (1)

Putting the value v in equation 1

               E= h c/ λ…………………… (2)

Put the value in equation 2

3.03 x 10-19 J  = (6.626 x 10–34 J s) x (3.00 x 108 m s–1) / λ ……………………….(3)

By rearranging equation 3

λ = (6.626 x 10–34 J s) x (3.00 x 108 m s–1) /3.03 x 10-19  J

λ = 6.5604 x 107 m

The answer is in “m”

So we have to convert it into nm

So for this to convert “m” to “nm” multiply the answer with 109

λ = 6.5604 x 107 x 109

λ = 6.5604 x 1016 nm

6 0
3 years ago
Which of the following contribute(s) to most of the mass of an atom?
xenn [34]

Answer:

1.

B) protons and newtrons

2.

D)

3.

C)

4.

A)

6 0
3 years ago
Which population increases the amount of soil nutrients available to plants?
Hitman42 [59]
The population tha increases the amount of soil nutrients available to plants is D) bees that help spread pollen from one plant to another.
5 0
3 years ago
Read 2 more answers
Energy levels of the Atom O
Artyom0805 [142]

Answer:

Oxygen has 2 energy levels

Explanation:

4 0
2 years ago
Other questions:
  • What is the electron structure of a sodium atom?
    8·2 answers
  • C3H7-C(=O)-NH2 IUPAC NAME ?
    10·2 answers
  • A hurricane and a typhoon are the same thing true or false?
    9·2 answers
  • 1
    14·1 answer
  • In one sentence, describe the general chemical structure of carbohydrates. In a second sentence, list the major biochemical func
    10·1 answer
  • The reaction below shows the decomposition of water into oxygen and hydrogen gas.
    11·1 answer
  • What is the pH of a 0.00200 M HCl solution?
    13·1 answer
  • Which of the following would not cause an increase in the pressure of a gaseous system in a container? A The container is made l
    14·2 answers
  • In P plants the gene for the color of the sea has two alleys in the punnets square show me love the dominant alley Y represents
    12·1 answer
  • What's a household item that has  electrical energy
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!