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
horrorfan [7]
3 years ago
15

Rachel is using a Bunsen burner to heat a solution. Which of the following would let her control the rate of reaction in the sol

ution? a replacing the amount of flame gas used with different rate.. b controlling the amount of air entering the combustion tube .. c placing the berner in open surroundings
Chemistry
2 answers:
kenny6666 [7]3 years ago
8 0

Answer:

b controlling the amount of air entering the combustion tube

Explanation:

In the Bunsen burner there is an adjustable collar which can be regulated to adjust the amount of oxygen (air) entering the burner and reacting with the gas. There is also a gas value which can be regulated to adjust the volume of gas entering the burner and thus controlling the height and the intensity of the flame generated by the Bunsen burner.

emmasim [6.3K]3 years ago
5 0
"Controlling the amount of air entering the combustion tube" is the statement among the statements given in the question that <span>would let her control the rate of reaction in the solution. The correct option among all the options that are given in the question is the second option or option "b". I hope the answer helps you.</span>
You might be interested in
Which statement describes the use of a flowchart?
castortr0y [4]

Answer: I believe it is B

5 0
3 years ago
Read 2 more answers
Hydrogen reacts with chlorine to form hydrogen chloride (HCl (g), mc012-1.jpgHf = –92.3 kJ/mol) according to the reaction below.
Kobotan [32]

<u>Given:</u>

H2(g) + Cl2 (g) → 2HCl (g)

<u>To determine:</u>

The enthalpy of the reaction and whether it is endo or exothermic

<u>Explanation:</u>

Enthalpy of a reaction is given by the difference between the enthalpy of formation of reactants and products

ΔH = ∑nHf (products) - ∑nHf (reactants)

      = [2Hf(HCl)] - [Hf(H2) + Hf(Cl2)] = 2 (-92.3) kJ = - 184.6 kJ

Since the reaction enthalpy is negative, the reaction is exothermic

<u>Ans:</u> The enthalpy of reaction is -184. kJ and the reaction is exothermic

3 0
3 years ago
Read 2 more answers
Need boy who is at leaast 12
Dahasolnce [82]

Answer:

helloo!!!!!!! I am 12 :)

4 0
2 years ago
What molecules can produce more energy per gram than sugars and are used for storing energy in animals?
Andrei [34K]
The answer is lipids
3 0
3 years ago
Read 2 more answers
Locate the element zinc (Zn) on the periodic table. How many protons does an atom of zinc contain? How many electrons does an at
Lady bird [3.3K]
<h2>Answer:</h2><h3>Part 1:</h3>

Location the element zinc (Zn) on the periodic table:

  •    Group number : 12
  •     Period number : 4
  •     Block :  d block
  •      Element : Transition elements.
<h3>Part 2:</h3>

Protons in an atom of Zn:  30

<h3>Part 3:</h3>

Electrons in a Zn atom: 30

<h3>Part 4 :</h3>

Neutron in an atom of Zn: 35


<h3 />
4 0
3 years ago
Read 2 more answers
Other questions:
  • Why does sulfur have more than 8 electrons in its valence?
    11·1 answer
  • Which layer of soil in the diagram contains clay and other particles of rock but little humus ?
    10·2 answers
  • Polyesters are formed from the reaction of __________.
    13·1 answer
  • Is the haber process for the industrial synthesis of ammonia spontaneous or nonspontaneous under standard conditions at 25 ∘c? n
    9·1 answer
  • Ozone is dangerous to human health only when it is found in the what?
    7·2 answers
  • Examples of chemical changes in nature
    9·2 answers
  • Dilute hydrochloric acid is gradually added to a solution that is buffered at pH 4.76. How will the pH of the solution be affect
    7·1 answer
  • Trimix is a general name for a type of gas blend used by technical divers and contains nitrogen, oxygen and helium. In one Trimi
    6·1 answer
  • Crystal violet standard solutions were prepared and their absorbance at a certain wavelength was measured using a spectrophotome
    9·1 answer
  • This piece of paper has been tuned into a work of art with many vibrant colors and decorated with multiple shapes, but it is sti
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!