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
Vika [28.1K]
3 years ago
6

Which of the following is the best hypothesis?

Chemistry
1 answer:
torisob [31]3 years ago
8 0

Answer:

b

Explanation:

i think it is b

You might be interested in
Which sentence is a scientific statement? A. There is a substance around us that cannot be detected. B. Kids should go to school
stellarik [79]

Answer:

Experimentation is the best way to obtain knowledge.

Explanation:

This is a statement and it is scientific

6 0
3 years ago
Commercial grade HCl solutions are typically 39.0% (by mass) HCl in water. Determine the molality of the HCl, if the solution ha
marta [7]

Molality of the solution is defined as the number of moles of a substance dissolved divided by the mass of the solvent:

Molality = number of moles / solvent mass

From the concentration of 39% (by mass) of HCl in water, we construct the following  reasoning:

in 100 g solution we have 39 g hydrochloric acid (HCl)

number of moles  = mass / molecular weight

number of moles of HCl = 39 / 36.5 = 1.07 moles

solvent (water) mass = solution mass - hydrochloric acid mass

solvent (water) mass = 100 - 39 = 61 g

Now we can determine the molality:

molality = 1.07 moles / 61 g = 0.018

8 0
3 years ago
An FM radio station broadcasts electromagnetic radiation at a frequency of 103.4 MHz (megahertz; MHz =106s–1). Calculate the w
kap26 [50]

Answer:

Wavelength=2.899\ m

Explanation:

The relation between frequency and wavelength is shown below as:

c=frequency\times Wavelength

c is the speed of light having value 2.998\times 10^8\ m/s

Given, Frequency = 103.4 MHz = 103.4\times 10^{6}\ Hz  ( as 1 MHz = 10⁶ Hz)

Thus, Wavelength is:

Wavelength=\frac{c}{Frequency}

Wavelength=\frac{2.998\times 10^8}{103.4\times 10^{6}}\ m

Wavelength=2.899\ m

5 0
3 years ago
10 points: What do Lewis structures show?
Gnesinka [82]
C only valence electrons

8 0
3 years ago
How do ionic bonds differ from covalent bonds?​
Alja [10]
Ionic bonds are a metal and a non metal bond and a covalent bond is two no metals banded together.
4 0
2 years ago
Other questions:
  • Calcium has a cubic closest packed structure (fcc) as a solid. Assuming that calcium has an atomic radius of 197 pm, calculate t
    12·1 answer
  • What compound is always part of an aqueous solution
    11·2 answers
  • Of the following gases, ______ will have the greatest rate of effusion at a given temperature.A) NH3B) CH4C) ArD) HBrE) HCl
    9·1 answer
  • Why doesn't the evaporation flask have bubbles below the surface
    15·1 answer
  • From the information presented in the movie, what can you
    5·1 answer
  • Which refers to the force that one massive object exerts to attract another object?
    15·2 answers
  • HELP!!! WILL MARK BRAINLIEST!!! <br> picture attached below
    12·1 answer
  • What is one benefit that nuclear power plants currently provide for our environment?
    9·2 answers
  • Which of the following is not a producer?<br> 1. Tulip<br> 2. Grass<br> 3. Pine Tree<br> 4. Mushroom
    9·2 answers
  • 62. A substance breaks down into its component elements
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!