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
RideAnS [48]
4 years ago
10

Mario believes he has found the reason that some things glow in the dark while others do not. What is the most important thing h

e will need to do before his theory will be accepted by other scientists? A. Create a petition and ask everyone who believes in his theory to sign it. B. Develop experiments that can be repeated to test his theory. C. Develop an online survey so people can vote on the accuracy of his theory. D. Write a book promoting his theory.
Chemistry
1 answer:
diamong [38]4 years ago
3 0
B. <span>Develop experiments that can be repeated to test his theory.</span>
You might be interested in
Can multiple people use one brainly account at the same time on a computer??
viva [34]

Answer:

No

Explanation:

...............................

3 0
3 years ago
Read 2 more answers
You evaporate all of the water from 100 mL of NaCl solution and obtain 11.3 grams of NaCl. What was the molarity of the NaCl sol
kicyunya [14]

Answer:

                      Molarity  =  1.93 mol.L⁻¹

Explanation:

             Molarity is the unit of concentration used to specify the amount of solute in given amount of solution. It is expressed as,

                         Molarity  =  Moles / Volume of Solution    ----- (1)

Data Given;

                  Mass  =  11.3 g

                  Volume  =  100 mL  =  0.10 L

First calculate Moles for given mass as,

                   Moles  =  Mass / M.mass

                   Moles  =  11.3 g / 58.44 g.mol⁻¹

                   Moles  =  0.1933 mol

Now, putting value of Moles and Volume in eq. 1,

                        Molarity  =  0.1933 mol ÷ 0.10 L

                        Molarity  =  1.93 mol.L⁻¹

3 0
4 years ago
How many grams are in 2.54 x 10^23 molecules of CO2
Ivan

Answer:

=<em><u> 0.42 moles of CO2 </u></em>

Explanation:

From Avogadro's constant

6.02×10^23 molecules are in 1 mole of CO2

2.54×10^23 molecules will be in

=[(2.54×10^23) ÷ (6.02×10^23)]

= 0.42 moles of CO2

8 0
3 years ago
PLEASE HELP!! PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP’
ahrayia [7]

Answer:

B is the answer because it doesn't matches the num of valence electrons

8 0
3 years ago
Read 2 more answers
(f) Which of the following alkenes is the major product when 2-bromo-2-methylpentane is treated with sodium ethoxide in ethanol?
belka [17]

Answer:

D) 2-methylpent-2-ene

Explanation:

This is an elimination reaction of Halogenoalkane. 2-bromo-2-methylpentane when is heated with NaOH or NaOC2O5( sodium ethoxide) in ethanol will form alkene rather than alcohol.

2-methylpent-1-ene is minor product since double bond form with secondary Carbon rather than primary Carbon.

8 0
3 years ago
Read 2 more answers
Other questions:
  • 7440.00 + (6.00 × 10^-3 × 5.43 × 10^8)
    15·2 answers
  • All of the following animals are adapted to living in the temperate zone EXCEPT:
    15·1 answer
  • The electronegativity of manganese is 1.6, sulfur is 2.5, oxygen is 3.5, chlorine is 3.0, and bromine is 2.8. With which element
    5·1 answer
  • Chemical energy is<br> energy that is
    12·2 answers
  • What must occur in order for a solution to form?
    8·2 answers
  • The quantity 0.202 g has _____________________________ significant<br> figures.
    5·1 answer
  • Why do cars need a cooling system in conjunction with the engine?
    5·1 answer
  • Neutral atoms of a specific element can have different numbers of which of the following?
    8·1 answer
  • Which of the following is most likely a homogeneous mixture?
    10·2 answers
  • Science quiz question #9
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!