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
Slav-nsk [51]
3 years ago
9

Which temperatures originally represented the fixed points Celsius temperature scale?

Chemistry
1 answer:
frez [133]3 years ago
8 0

Answer:Since 1743 the Celsius scale has been based on 0 °C for the freezing point of water and 100 °C for the boiling point of water at 1 atm pressure. Prior to 1743 the values were reversed (i.e. the boiling point was 0 degrees and the freezing point was 100 degrees).

Explanation: i no it

You might be interested in
The octet rule states that an atom other than hydrogen tends to form bonds until it is surrounded by
Jobisdone [24]
Until it is surrounded by love. No, just kidding. the answer is "8 valence electrons"
4 0
3 years ago
The increase in the population of people living in urban areas will cause a decrease in urban sprawl.
Marina CMI [18]
This is false/ i know because i live in an urban area and it increases by human construction.
5 0
3 years ago
Read 2 more answers
What was George Washington Caver professional information ​
Sedbober [7]

Explanation:

George Washington Carver was born enslaved and went on to become one of the most prominent scientists and inventors of his time, as well as a teacher at the Tuskegee Institute. Carver devised over 100 products using one major crop — the peanut — including dyes, plastics and gasoline.

5 0
3 years ago
Read 2 more answers
a car is traveling at a speed of 55 mph the speed increased to 75 mph if the time needed to hange its speed is 4 seconds whats t
Savatey [412]

v = 75 mph = 33.52 m/s

u = 55 mph = 24.58 m/s

t = 4 sec

acceleration = v-u/t

= 33.52-24.58/4

= 8.94/4

= 2.235 m/s

6 0
3 years ago
Why the ph of glycine increases when 0.1 M NaOH is added dropwise​
shtirl [24]

Answer:

The acid-base reaction produces glycine reduction, and hence the increase of glycine pH.

Explanation:

The glycine is an amino acid with the following chemical formula:

NH₂CH₂COOH  

The COOH functional group is what gives the acid properties in the molecule.      

Hence, when NaOH is added to glycine an acid-base reaction takes place in which COOH reacts with the NaOH added:

NH₂CH₂COOH + OH⁻ ⇄ NH₂CH₂COO⁻ + H₂O

The glycine concentration starts to shift to its ion form (NH₂CH₂COO⁻) because of the reaction with NaOH, that is why the pH glycine increases when NaOH is added.  

Therefore, the acid-base reaction produces glycine reduction, and hence the increase of glycine pH.  

I hope it helps you!  

7 0
3 years ago
Other questions:
  • Suppose you measure the absorbance of a yellow dye solution in a 1.00 cm cuvette. The absorbance of the solution at 427 nm is 0.
    11·1 answer
  • Match the correct properties and characteristics of each type of rock?
    11·2 answers
  • chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12×10−12 . What is the solubility (in mol/L) of silv
    12·1 answer
  • Convert the following reaction into its formula equation and complete the product.
    5·1 answer
  • Which of the following statements about gases is false?
    12·1 answer
  • 4. How do these measurements compare? 2500 meters and 200 grams *
    15·1 answer
  • SHOW WORK<br> A football field is 120.0 yards long, how long is a football field in inches?
    7·1 answer
  • This is timed!!! Please help!
    9·1 answer
  • How many molecules are in 502.1 g of NaF?
    5·1 answer
  • What is the relationship between thermal energy, kinetic energy and the transition between the three states of matter
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!