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
dsp73
3 years ago
13

What is the purpose of the uninoculated control tubes used in the oxidation fermentation test?

Chemistry
1 answer:
Black_prince [1.1K]3 years ago
5 0
The purpose of the uninoculated control tubes used in this test is that two uninoculated control tubes are needed to show the results of the medium in both aerobic and anaerobic environments. It is used to show it is sterile and also as a color comparison, used also to show that the medium remains green under both conditions. 
You might be interested in
7. What must you do before you make a hypothesis?
almond37 [142]

Answer:

Ask a question?

Explanation:

look at the scientific method uwu

6 0
3 years ago
Metals react with ______ to form compounds that are alkaline.
kondor19780726 [428]

Metals react with ______ to form compounds that are alkaline.

A. metalloids

B. oxygen (O)

C. non-metals

D. hydrogen (H)

The answer is D, Hydrogen (H).

7 0
3 years ago
Read 2 more answers
How many moles of oxygen gas are needed to produce 4 moles of carbon dioxide gas?
11111nata11111 [884]
Answer: 8 moles
Explanation:
Nc2H6= 4 mol
2C2H6 + 7O2 → 4CO2+6H2O
CO2=4/2⋅4
NCO2= 8 moles
( I write this on paper so the letters and format might be confusing) sorry!!
3 0
3 years ago
Zn + 2HCI --> ZnCl2 + H2
Elena-2011 [213]
Moles= mass\ relative formula mass(Ar)
moles of zinc= 7.9/30= 0.263
so we have 0.263 moles of zinc, and you need twice the amount of chlorine so therefore 0.526moles of chlorine= 0.526x 17=8.942g of chlorine
i cba to work the rest out but the most reasonable answer is 0.24 mol however if you need to use working outs, use the formula i provided earlier
8 0
3 years ago
4. Which of the following statements
Gnesinka [82]

Answer:

The answer is B

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • In what type of reaction does a single uncombined element replace another element in a compound?
    12·1 answer
  • The national drug code number (NDC) of the drug is included in this section of a drug monograph
    6·1 answer
  • Which subatomic particle has negligible mass and travels around outside the nucleus?
    6·1 answer
  • Jack hypothesize that more mold will grow on a slice of bread that is left in the dark that a slice of bread left in the light h
    5·1 answer
  • A 25.0 mL sample of a solution of a monoprotic acid is titrated with a 0.115 M NaOH solution. The end point was obtained at abou
    14·1 answer
  • 11th grade chemistry study guide need help
    6·1 answer
  • An example of an extensive property of matter is?<br>temp<br>pressure<br>mass<br>hardness
    9·1 answer
  • A 25 mL sample of 0.100 M HNO3 completely reacts with NaOH according to this equation:
    14·2 answers
  • Which of the following will produce a 2 molar solution of copper (II) chloride?
    6·1 answer
  • How does specific heat capacity affect heating rate
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!