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
Tpy6a [65]
3 years ago
5

The characteristic bright–line spectrum of potassium is produced when electrons

Chemistry
1 answer:
OLEGan [10]3 years ago
8 0

Answer: B.

Explanation:

When the electron changes levels, it decreases energy and the atom emits photons. The photon is emitted with the electron moving from a higher energy level to a lower energy level. The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level.

Hope this helps!

You might be interested in
You have 0.5 l of air at 203 k in an expandable container at constant pressure. you heat the container to 273 k. what is the new
Leviafan [203]
0.593 L. V1/T1 = V2/T2
5 0
2 years ago
Given the chemical formulas of the following compounds, name each compound and state the rules you used to determine each name.
Svetlanka [38]
When naming an ionic compound, write the name of the cation, which is the metal first. Then, write the name of the anion, which is the nonmetal. However, you remove the last 2-3 letters and replace suffixes. 

1. RbF --> Rubidium Fluoride
Change fluorine to fluoride
2. CuO --> Copper (II) Oxide
Change oxygen to oxide. Oxide has a charge of -2. Since no subscripts are written, it means they have the same opposite charge. So, we use Copper (II).
<span>3. (NH</span>₄<span>)</span>₂<span>C</span>₂<span>O</span>₄  ---> Ammonium Oxalate
NH₄ is ammonia, but we change it to ammonium for polyatomic ions. 
5 0
3 years ago
What is the mass of a 0.23 L substance, if it has density of 1.90 g/mL?
jolli1 [7]

Answer:

437 g

Explanation:

as mass = density × volume

8 0
2 years ago
What charge would an arsenic, As, ion have? Explain.
leva [86]

Answer:

Arsenic (As) anion has -‐3 charge, but also forms cations with +3 or +5 charge.

Explanation:

5 0
2 years ago
Metric dimensional analysis worksheet problem: 645 kg to g
Andrews [41]

Answer:

645000 grams my dude

3 0
2 years ago
Other questions:
  • For the following reaction, 5.91 grams of carbon monoxide are mixed with excess oxygen gas . The reaction yields 6.70 grams of c
    11·1 answer
  • Sulfur reacts with oxygen and creates two compounds. Compound A contains 1.34 g of sulfur for every 0.86 g of oxygen. Compound B
    14·1 answer
  • How many grams of Na2SO4 should be weighed out to prepare 0.5L of a 0.100M solution?​
    8·1 answer
  • What are the four states of matter?
    5·2 answers
  • Most polyatomic ions are cations.<br> TRUE<br> FALSE
    7·1 answer
  • How many atoms are there in 2.43 g of calcium?
    14·1 answer
  • The average kinetic energy of particles of matter id called?
    5·2 answers
  • Which of the following elements will lose electrons to form an ion
    5·1 answer
  • Which elements are<br> considered "Noble Metals"?
    5·1 answer
  • If you burn a citronella candle near your picnic will it keep mosquitoes away
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!