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
zubka84 [21]
3 years ago
14

Which of the following is NOT a qualitative observation

Chemistry
1 answer:
frozen [14]3 years ago
4 0

what is the following???

a qualitative observation is when somehthings appearance changes like form red to blue, and qualitative is when the umber of something changes.

Hope this helps

Kenny

You might be interested in
How to put Roman numerals in a science equation
Bogdan [553]
Example:

Oxygen(III)
6 0
3 years ago
Fill in the blank.
labwork [276]

Answer:

Kinetic energy, Kelvin temperature, direction, warmer, cooler, Kelvin, Absolute zero

Explanation:

THe answers are in order and when there is a comma move to the next ______

7 0
2 years ago
Usually , it takes very little time for a community to develop during primary succession False True
Arte-miy333 [17]
False! Primary succession is when a community has to completely start over which takes a long time.
6 0
3 years ago
Calculate the pressure of 3.2 moles of an ideal gas that occupies a volume of 87 m3 at a temperature of 312 K.
Anestetic [448]

Answer:

                  P  =  0.0009417 atm

Or,

                 P  =  9.417 × 10⁻⁴ atm

Or,

                  P  =  0.0954157 kPa

Or,

                  P  =  0.715677 mmHg (Torr)

Explanation:

Data Given:

                 Moles  =  n  =  3.2 mol

                 Temperature  =  T  =  312 K

                  Pressure  =  P  =  ?

                  Volume  =  V  =  87 m³ = 87000 L

Formula Used:

Let's assume that the gas is acting as an Ideal gas, the according to Ideal Gas Equation,

                  P V  =  n R T

where;  R  =  Universal Gas Constant  =  0.082057 atm.L.mol⁻¹.K⁻¹

Solving Equation for P,

                  P  =  n R T / V

Putting Values,

                  P  =  (3.2 mol × 0.082057 atm.L.mol⁻¹.K⁻¹ × 312 K) ÷ 87000 L

                  P  =  0.0009417 atm

Or,

                 P  =  9.417 × 10⁻⁴ atm

Or,

                  P  =  0.0954157 kPa

Or,

                  P  =  0.715677 mmHg (Torr)

4 0
3 years ago
Read 2 more answers
How many grams of sodium are needed to produce 12.5g of sodium oxide
Hatshy [7]

Answer:

25 possibly

Explanation:

I'm not too sure about this, but sodium oxide is Na2O, 2 sodium and 1 oxygen, so 12.5g * 2 is 25

If someone else comes up with a more convincing argument listen to them

4 0
3 years ago
Other questions:
  • Kinetic energy is energy that an object possesses because of its
    14·1 answer
  • The acid-dissociation constant at 25.0 °c for hypochlorous acid (hclo) is 3.0 ⋅ 10−8. at equilibrium, the molarity of h3o+ in a
    11·1 answer
  • What best describes the degree to which a material can transmit Heat A:melting point B:boiling point C: thermal conductivity D:
    7·2 answers
  • Which of these will melt the fastest
    6·1 answer
  • A student assisting with the experiment would observe all of the following about the electron transport chain EXCEPT:A. Electron
    11·1 answer
  • How many grams of iron metal do you expect to be produced when 305 grams of a 75.5 percent by mass iron(II) nitrate solution rea
    15·2 answers
  • helium gas in a 2.00 L cylinder is under 1.12 atm pressure. At 36.5°C that same gas sample has a pressure of 2.56 atm. What was
    15·1 answer
  • The oxidation number of magnesium in magnesium chloride is _____.
    15·1 answer
  • What is the difference between acids and strong acids?
    11·1 answer
  • The reader can infer from the article that __________.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!