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
Marrrta [24]
4 years ago
14

Replicating an experiment _____.

Chemistry
2 answers:
kramer4 years ago
7 0

Answer:

The answer is A.

Explanation:

When you repeat and experiment, it has a larger chance of being Valid. You're welcome, by the way. (:

Georgia [21]4 years ago
4 0

Answer:

a

Explanation:

You might be interested in
Separating fluids, such as blood, is best accomplished using:
Vera_Pavlovna [14]

Centrifugation is usually use to separate different components of blood.

4 0
3 years ago
Burning coal releases the following pollutants except
Jobisdone [24]
B stratospheric zone
8 0
3 years ago
A student carried out a titration using HC2H3O2(aq)HC2H3O2(aq) and NaOH(aq)NaOH(aq). The net ionic equation for the neutralizati
AnnZ [28]

Answer:

The amount of HC₂H3₃2(aq) in the flask after the addition of 5.0mL of NaOH(aq) compared to the amount of HC₂H₃O₂(aq) in the flask after the addition of 1.0mL is much smaller because more HC₂H₃O₂(aq) is required to react with 5.0 mL NaOH than with 1.0 mL NaOH.

Explanation:

Equation of the reaction between acetic acid, HC₂H₃O₂(aq) and sodium hydroxide, NaOH(aq) is given below:

CH₃COOH (aq) + NaOH (aq) ----> CH₃COONa (aq) + H₂O

The equation of the reaction shows that acetic acid andsodium hydroxide will react in a 1:1 ratio

Since the concentration of NaOH was not given, we can assume that the concentration is 0.01 M

Moles of NaOH in 5.0 mL of 0.01 M NaOH = 0.01 × 5/1000 = 0.00005 moles

Moles of NaOH in 1.0 mL of 0.01 M NaOH = 0.01 ×1/1000 = 0.0001 moles

Ratio of moles of NaOH in 5.0 mL to 1.0 mL = 0.00005/0.00001 = 5

There are five times more moles of NaOH in 5.0 mL than in 1.0 mL and this means that 5 times more the quantity of HC₂H₃O2(aq) required to react with 1.0 mL NaoH is needed to react with 5.0 mL NaOH.

Therefore, the amount of HC₂H₃O2(aq) in the flask after the addition of 5.0mL of NaOH(aq) compared to the amount of HC₂H₃O₂(aq) in the flask after the addition of 1.0mL is much smaller because more HC₂H₃O₂(aq) is required to react with 5.0 mL NaOH than with 1.0 mL NaOH.

4 0
3 years ago
Which of the following is NOT a unit energy? (select all that applies)
never [62]

Answer:

Kelvin, Celsius, Fahrenheit

Explanation:

See my other answer for an explanation.

4 0
4 years ago
Read 2 more answers
Three different sub-atomic particles are described below: Particle X: Uncharged Particle Y: Carries positive charge Particle Z:
bazaltina [42]

 The statement  which is true  about  the three sub atomic particles  is

X is  a neutron,Y is a protons and z is an electron

<u><em>Explanation</em></u>

  •  Atom  has three  sub  atomic    particles,that  is  neutrons,protons and electrons.
  • Neutrons have no electric  charge,protons  are positively  charged while electrons  are  negatively  charged.
  • Both  neutrons and proton are located in the nucleus while electrons  are  located outside the  nucleus.
  • since electrons   are located  outside the  nucleus  they  orbit  around the nucleus.
3 0
3 years ago
Read 2 more answers
Other questions:
  • At physiological ph, the ionized state of the amino (nh2) group in the r group of lysine is:
    12·1 answer
  • If the boiling point of a certain amount of a liquid is 150 degrees, what is the boiling point of twice that amount of the liqui
    13·1 answer
  • Find the molar mass of KC1
    10·1 answer
  • The freezing and thawing action of water affects a rock by?
    9·2 answers
  • The graph shows the distribution of energy in the particles of two gas samples at different temperatures, T1 and T2. A, B, and C
    13·1 answer
  • What are isotopes?
    10·2 answers
  • Draw the Lewis structure, including unshared pairs, of the following molecules. Carbon has four bonds in the compound.
    13·1 answer
  • Who is all bor.ed bc im bor.ed who wan.na talk UwU
    13·2 answers
  • Respiration describes the process that living cells use to release energy by combining sugar and oxygen. The primary chemical ch
    5·1 answer
  • Which actions would the nurse implement when a client develops an anaphylactic reaction? select all that apply. one, some, or al
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!