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
Fed [463]
3 years ago
10

How many independent variables can be tested in a standard scientific experiment

Chemistry
1 answer:
Shalnov [3]3 years ago
6 0

One independent variable

You might be interested in
A geological process (2 points)
densk [106]
They are all correct good job bud I hope it helps and good luck

4 0
3 years ago
Read 2 more answers
The molecular weight of vitamin C , C6H8O6 is 176.12 grams over mol
IgorC [24]

Answer:

0.0250 g.

Explanation:

∵ no. of moles (n) = mass / molar mass.

<em>∴ mass of Vitamine C = (n)(molar mass)</em> = (0.000142 mol)(176.12 g/mol) = 0.02501 g = <em>0.0250 g. "three significant figures"</em>

3 0
3 years ago
What is the electron configuration for sulfur? A. 1s2 2s2 2p6 3s2 3p4 B. 1s2 1p6 2s2 2p6 3s2 C. 1s2 2s2 2p6 3s2 3p3 4s1 D. 1s2 2
3241004551 [841]
Sulfur has two filled energy levels and six electrons on the third energy level. The corresponding electron configuration is A.
B is incorrect because there are no p orbitals at the first energy level, ie, no 1p orbitals. C is incorrect because the 4s1 electron would spontaneously drop into the 3p orbitals. D is incorrect because the 3d electrons would spontaneously drop into the 3p orbitals.
3 0
3 years ago
Read 2 more answers
What is the net redox reaction that occurs when Au comes into contact with acidic KMnO4? (Use the lowest possible coefficients.
Natalka [10]

Answer:

3MnO₄⁻ + 24H⁺ + 5Au → 5Au³⁺ + 3Mn²⁺ + 12H₂O.

Explanation:

  • KMnO₄ is strong oxidizing agent which is reduced and oxidizes Au according to the two-half reactions:

The oxidation reaction: Au → Au³⁺ + 3e.

The reduction reaction: MnO₄⁻ + 8H⁺ + 5e → Mn²⁺ + 4H₂O.

  • To obtain the net redox reaction, we multiply the oxidation reaction by 5 and the reduction reaction by 5 to equalize the no. of electrons in the two-half reactions.

<em>So, the net redox reaction will be:</em>

<em>3MnO₄⁻ + 24H⁺ + 5Au → 5Au³⁺ + 3Mn²⁺ + 12H₂O.</em>

<em></em>

8 0
3 years ago
Which of the following changes requires an oxidizing agent?
KatRina [158]
2F⁻ → F₂ + 2e⁻

(mainly electrochemical oxidation)
8 0
3 years ago
Read 2 more answers
Other questions:
  • A 59.1g sample of aluminum is put into a calorimeter (see sketch at right) that contains 250.0g of water. The aluminum sample st
    10·1 answer
  • ASAP !!!! On a hot summer day the temperature is 30.0C. what is the volume of a weather balloon that has 34.5 moles of helium at
    12·1 answer
  • W
    6·1 answer
  • What masses of kbr and water are needed to produce 300. g of a solution that is 3.00 % by mass?
    6·1 answer
  • 7. The charge on the electron cloud
    10·1 answer
  • How does one calculate the mass of the sample?
    13·1 answer
  • Sodium (Na) and iodine gas (I2) react to form sodium iodine (NaI).
    7·1 answer
  • 21.82 L of 4.65 M HCl is added to 9.31 L of 8.55 M NaOH. What is the concentration of HCl in the resulting solution? **hint: mak
    5·1 answer
  • (there are 3 quetions) how is heat being transfered in:
    9·2 answers
  • Which of the compounds below will ionize in
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!