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
Dvinal [7]
3 years ago
14

Abdul swabs one of his sister’s arms with water. He swabs her other arm with rubbing alcohol.

Chemistry
1 answer:
slamgirl [31]3 years ago
5 0

Answer:

B. The amounts of water and alcohol are not the same

Explanation:

You might be interested in
Explain how neutralization reactions are used in acid-base titrations.
nadya68 [22]
Acid-base tiltrations has DNA that can help in the process of neutralization. not so sure about it
8 0
3 years ago
What is the basic SI unit of time
aniked [119]

Answer:

The base unit for time is the second the other SI units are: metre for length, kilogram for mass, ampere for electric current, kelvin for temperature, candela for luminous intensity, and mole for the amount of substance!

Explanation:

I hope i helped =)

5 0
3 years ago
Which of the following is a way that trees have been negatively impacted by human use?
Novay_Z [31]
The people cut down the trees
5 0
3 years ago
What is the empirical formula of a compound containing 40.0% sulfur and 60.0% oxygen by mass?
gizmo_the_mogwai [7]

in order to determine empirical formula we have to determine the mole ratio of the given elements

Let the total mass of the compound is 100g

as given that the compound has 40% sulfur , so mass of sulfur = 40g

as given that the compound has 60% oxygen, so mass of oxygen = 60g

let us calculate the moles of each element

Moles of sulfur = mass / atomic mass = 40 / 32 = 1.25

moles of oxygen = mass / atomic mass = 60/ 16 = 3.75

In order to get simple ratio of moles we will divide both the moles with least number of moles which is 1.25

moles of sulfur = 1.25 / 1.25 = 1

moles of oxygen = 3.75 /1.25 = 3

So empirical formula will be SO₃

3 0
3 years ago
What happens to the number of waves when you decrease the wavelength?
Keith_Richards [23]

C

Decreasing the wavelength increases the frequency of a wave and vice versa, as long as the energy of the wave remains constant.

Explanation:

The energy of a wave is given by the formula;

E= hf

Whereby;

E = energy

h = Plank’s constant

f = frequency

Remember that f can be also represented as;

¹/ λ

Whereby;

λ = wavelength

Wavelength and frequency are therefore inversely proportional.

Decreasing the wavelength increases the frequency of a wave and vice versa, as long as the energy of the wave remains constant.

Learn More:

For more on frequency and wavelength of waves check out;

brainly.com/question/13451801

brainly.com/question/9501542

brainly.com/question/14068647

brainly.com/question/12924624

brainly.com/question/10955773

#LearnWithBrainly

6 0
4 years ago
Other questions:
  • An automobile can travel 40.0 miles on one gallon of gasoline how many kilometers per liter is this
    8·2 answers
  • Which element has an atom with the greatest tendency to attract electrons in a chemical bond?
    6·2 answers
  • 61.0 mol of P4O10 contains how many moles of P
    5·2 answers
  • A solution was prepared by dissolving 0.800 g of sulfur S8, in 100.0 g of acetic acid, HC2H3O2. Calculate the freezing point and
    12·1 answer
  • Which element has the highest standard reduction potential? fluorine hydrogen lead lithium
    6·2 answers
  • A metal sample has a mass of 64.2 g. What is the density of this metal?
    5·1 answer
  • 1. Define λmax and explain why it is desirable to do the experimental procedure at λmax? 2. Around what absorbance would you exp
    5·1 answer
  • Most of earths fresh water is in glaciers <br><br> True or false <br><br> PEASE HELPP
    15·2 answers
  • Determine the mass in grams of Avogadro's number of C12H22O11
    13·1 answer
  • Calculate the grams of so2 gas present at stp in a 5. 9 l container. (atomic weights: s=32, o=16).
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!