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
9

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Chemistry
1 answer:
Pepsi [2]3 years ago
6 0

Hello There!

A "THEORY" summarizes a hypothesis or in some cases summarizes a group of hypotheses that have been supported with repeated testing.

A "HYPOTHESIS" is a proposed explanation that usually happens before testing when you have limited evidence.

____________________________________________________________

It is the act of conducting a test or investigation. "EXPERIMENT"

It is the act of recording an object in action. "OBSERVATION"

You might be interested in
Choose the molecule with the strongest internal bond, (intra-, not intermolecular bond) ​
Verdich [7]

Answer:

A

Explanation:

The molecule with the strongest intramolecular bond is HF. Hydrogen fluoride is the answer due to the strong and highly electronegative nature of Fluorine.

  • Fluorine is the most electronegative element in nature.
  • When it combines with other substances, due to its electronegative property, it draws most of the electrons closest to itself in the bond.
  • This tendency and ability makes the shared electrons closer the fluorine in the bond.
  • The strong polarization that ensues confers a very strong covalent bond pair on the bond formed.
6 0
3 years ago
1. A sample of oxygen is collected over water at 22 ° C and 762 torr. What is the partial pressure of the dry oxygen? The vapor
Rom4ik [11]

Answer: The partial pressure of the dry oxygen is 742 torr

Explanation:

Dalton's Law of Partial Pressure states that the total pressure exerted by a mixture of gases is the sum of partial pressure of each individual gas present. Thus P(total)=P_1+P_2 .........

Given; Total pressure = 762 torr

partial pressure of water = 19.8 torr

partial pressure of dry oxygen = ? torr

Total pressure  = partial pressure of water + partial pressure of dry oxygen

762 torr = 19.8 torr = partial pressure of dry oxygen

partial pressure of dry oxygen = 742 torr

The partial pressure of the dry oxygen is 742 torr

8 0
4 years ago
A ball thrown across a football field is an example of a(n)
Cloud [144]

I don't know what you mean by the question, but in science it is Newton's second law.

"The second law explains how the velocity of an object changes when it is subjected to an external force."

I hope this helped!+*♡

7 0
3 years ago
What volume will be occupied by 33.0 grams of CO2 at 500 torr and 27 °C?
wlad13 [49]

Answer:

V = 27.98 L

Explanation:

Given data:

Mass of CO₂ = 33.0 g

Pressure = 500 torr

Temperature = 27°C

Volume occupied = ?

Solution:

Number of moles of CO₂:

Number of moles = mass/molar mass

Number of moles = 33.0 g/ 44 g/mol

Number of moles = 0.75 mol

Volume of CO₂:

PV = nRT

R = general gas constant = 0.0821 atm.L/ mol.K  

Now we will convert the temperature.

27+273 = 300 K

Pressure = 500 /760 = 0.66 atm

By putting values,

0.66 atm×V = 0.75 mol × 0.0821 atm.L/ mol.K  × 300 K

V = 18.47 atm.L/0.66 atm

V = 27.98 L

4 0
3 years ago
Is this the correct answer?
Alona [7]
I believe so, looks like it
8 0
3 years ago
Other questions:
  • A sample of marble has a volume of 8 cm3 and a density of 2.75 g/cm3. What is its mass?
    9·2 answers
  • How many molecules are in 2.00 mol of water?
    11·1 answer
  • How many electrons can the n=4 shell hold?<br> a. 8b.16c.32d.64?
    11·2 answers
  • Please help me fast!!!
    7·1 answer
  • What would happen if the earth did not have gravity?
    13·2 answers
  • What would be the effect on the calculated ratio (mole of copper:mole of iron) if:
    12·1 answer
  • What would the formula of an ionic compound made of Aluminum and Oxygen be?
    15·1 answer
  • How have organisms changed over time, according to the fossil record?​
    12·1 answer
  • Using tongs place the 250 mL beaker on hot plate
    8·1 answer
  • put the contributions to the understanding of the atomic structure in order from most recent at the top to the earliest at the b
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!