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
OverLord2011 [107]
3 years ago
7

Which element does the following box notation represent:

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

Answer:

D. yan trust meManiwala kalang

You might be interested in
Describe how vitamin A may be used in the body​
PilotLPTM [1.2K]

Answer:

Vitamin A is important for normal vision, the immune system, and reproduction. Vitamin A also helps the heart, lungs, kidneys, and other organs work properly. There are two different types of vitamin A. The first type, preformed vitamin A, is found in meat, poultry, fish, and dairy products.

3 0
3 years ago
Read 2 more answers
Calculate the molarity of a soln of 3 mols of NaOH in 2 L
Grace [21]
Molarity = 1.5

molarity = moles/liters
m= 3/2
m= 1.5
4 0
3 years ago
What is the wavelength of a photon with an energy of 3.50 x 10^-19 J ?
Leokris [45]

Answer:

λ = 5.68×10⁻⁷ m

Explanation:

Given data:

Energy of photon = 3.50 ×10⁻¹⁹ J

Wavelength of photon = ?

Solution:

E = hc/λ

h = planck's constant = 6.63×10⁻³⁴ Js

c = 3×10⁸ m/s

Now we will put the values in formula.

3.50 ×10⁻¹⁹ J =  6.63×10⁻³⁴ Js × 3×10⁸ m/s/ λ

λ =  6.63×10⁻³⁴ Js × 3×10⁸ m/s / 3.50 ×10⁻¹⁹ J

λ =  19.89×10⁻²⁶ J.m / 3.50 ×10⁻¹⁹ J

λ = 5.68×10⁻⁷ m

8 0
3 years ago
Identify the acid, base, conjugate acid, and conjugate base in the following reaction:
myrzilka [38]

Answer:

Acid: HSO4-

Base: NH3

Conjugate Acid: NH4+

Conjugate Base: SO4-2

Explanation:

HSO4- gives a H+ to NH3 making NH4+ the conjugate acid.

Same can be said to the base.

3 0
2 years ago
Q. Which change has a negative entropy change of the system
Effectus [21]

Answer:

D) none of these

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Describe the displacement of ammonia from its salts by warming with an alkali
    7·1 answer
  • Some of the characteristics of a chemical change are the release of a(n) _____________or a change in ___________________________
    5·1 answer
  • Covert 0.2598kl to l
    14·1 answer
  • PLEASE ANSWER
    9·1 answer
  • What are natural resources
    11·1 answer
  • Which of the following is not a possible sublevel?<br><br> 1p<br> 2s<br> 3d<br> 4f
    10·2 answers
  • How many atoms are in oxygen
    5·1 answer
  • Compare producers and consumers in an ecosystem.
    7·2 answers
  • What are interactions between flip flops and sulfuric acid
    8·1 answer
  • Red light has a wavelength of 700 nm and a frequency of 4.3 x 10^14 s^-1. What is the energy of a single photon of red light?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!