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
Schach [20]
3 years ago
14

QUESTION 1

Chemistry
1 answer:
s2008m [1.1K]3 years ago
8 0

Answer:

electron=negative

proton=positive

neutron=neutral

You might be interested in
The question is in the attachment
yKpoI14uk [10]

Answer:

About redox reaction which of the given statements are true?

Explanation:

Redox reaction is the one in which both oxidation and reduction reactions take place simultaneously.

For example:

C(s)+O_2(g)->CO_2(g)

In this reaction, carbon undergoes oxidation and oxygen undergoes reduction simultaneously.

During this reaction, mutual exchange of electrosn take place between the oxidant and the reductant.

Among the given options,

Option B. electrons are transferred

and

option C.They include both oxidation and reduction takes place are the correct answers.

7 0
3 years ago
Identify the reaction that occurs when the acid hbr is added to the buffer solution. Add hbr
Tamiku [17]
Hmmm hard to tell. Sorrry :(/((/(/
7 0
3 years ago
A solution has an H3O+ concentration of 3.5 x 10^-5 M. Is it acidic or basic?
irakobra [83]

The mass of NaCl produced is 0.117 g.

<h3>What is the pH?</h3>

The pH of a solution is what tells us if the solution is acidic or basic. The solution is acidic if the pH of the solution is less than 7.

1) pH = - log(3.5 x 10^-5 M)

= 4.45

Thus the solution is acidic.

2) We can see that the concentration as given is the concentration of OH^-

[OH ] = 4.0 x 10^-3 M

pOH = -log (4.0 x 10^-3 M)

pOH = 2.39

pH = 14 -  2.39

pH = 11.61

The equation of the reaction is; NaOH + HCl ----- > NaCl + H2O

Number of moles of NaOH =  0.40 M * 10/1000 = 0.004 moles

Number of moles of HCl = 0.20 M  * 10/1000 = 0.002 moles

We can see that HCl is the limiting reactant

Mass of NaCl produced ;

0.002 moles * 58.5 g/mol = 0.117 g

Learn more about reaction:brainly.com/question/3588292

#SPJ1

7 0
2 years ago
Which phrase describes how metamorphic rocks form?
tiny-mole [99]

Answer:

B

Explanation:

7 0
3 years ago
Read 2 more answers
A student mixes 40. Ml of 0. 10mhbr(aq) with 60. Ml of 0. 10mkoh(aq) at 25°c. What is the [oh−] of the resulting solution?
diamong [38]

After the complete neutralization reaction occurs, excess hydroxide ion is left unreacted the hydroxide ion of the resulting solution, [OH-] is 0.02 M.

<h3>What is the concentration of the hydroxide ion, [OH-]?</h3>

The hydroxide ion concentration is the amount in moles of hydroxide ion in a solution.

The hydroxide ion concentration is written as [OH-].

The equation of the reaction is given below:

1 mole of HBr reacts with 1 mole of KOH

Moles of HBr = 40 mL × 0.1 M = 4 mm moles

Moles of KOH = 60 mL × 0.1 M = 6 m moles

Moles of [OH-] = 6 - 4 = 2 m moles

Volume of solution = 100 mL

[OH-] = \dfrac{2m\; moles}{100\; mL} = 0.02 M

Thus, the concentration of the hydroxide ion, [OH-] is 0.02 M.

Learn more about hydroxide ion

brainly.com/question/25883474

#SPJ4

3 0
2 years ago
Other questions:
  • Which of the following will affect the rate of a chemical reaction?
    14·2 answers
  • What is a scientist?
    14·2 answers
  • A sample of sodium reacts completely with 0.213 kg of chlorine, forming 351 g of sodium chloride. What mass of sodium reacted?
    7·1 answer
  • Are alcohols with more than one hydroxyl group attached to a carbon sequence.
    12·1 answer
  • The first organism in a food chain muust always be what type e of organism
    8·1 answer
  • As a race car races around the track, friction between the tire and the road heats the air in the tires and the pressure inside
    12·1 answer
  • ASAAPPP NEED HELP IF ANYONE IS AROUND
    14·1 answer
  • In covalent bonds, electrons are ____.
    14·1 answer
  • In metallic bonds, the mobile electrons surrounding the positive ions are called a(n)
    9·1 answer
  • How would you ask a girl out. I know that I can use my voice, but I don’t know what to say.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!