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
Which energy source from a reservoir would provide affordable, abundant electricity for a factory? solar panels wind turbines ga
Sunny_sXe [5.5K]

The energy source from a reservoir would provide affordable, abundant electricity for a factory is a hydroelectric power plant; option D.

<h3>What is energy?</h3>

Energy is the ability to do work.

Energy generating plants may either use wind, water or solar energy to produce electrical energy.

The most abundant source of energy from a reservoir is hydroelectric power plant.

Therefore, the energy source from a reservoir would provide affordable, abundant electricity for a factory is a hydroelectric power plant.

In conclusion, hydroelectric power plants are reservoirs of abundant energy supply.

Learn more about hydroelectric power plants at: brainly.com/question/3406557

#SPJ1

7 0
1 year ago
Add electron dots and charges as necessary to show the reaction of calcium and oxygen to form an ionic compound.
xxMikexx [17]
The two atoms shown in the equation are CALCIUM and oxygen. 

<span>You start off with a neutral calcium atom with a shell of two electrons, a shell of 8 around that, a shell of 8 around that, and a shell containing 2...with no charge. </span>
<span>20 protons + 20 electrons. </span>

<span>You also have an oxygen atom with a shell of 2, and a shell of 6...with no charge. </span>
<span>8 protons + 8 electrons. </span>

<span>Each ionizes to form a calcium ion with 2 electrons removed (from the outer shell), leaving a +2 charge (20 protons, 18 electrons)... </span>
<span>and an oxygen ion with 2 electrons added (to the outer shell), leaving a -2 charge (8 protons, 10 electrons). </span>

<span>Their electrostatic attraction causes them to come together to form an ionic compound of CaO in a crystal lattice.</span>
7 0
3 years ago
In a kitchen, during preparation of food or tea, salt and sugar are
Rzqust [24]

Answer:

A mixture of salt and sugar can be separated by the process of filtration.

5 0
1 year ago
What is calculated by dividing mass volume
dem82 [27]
By dividing mass with volume, you will end up with density
7 0
3 years ago
4. Ammonium nitrate (NH4NO3) fertilizer decomposes explosively into gaseous nitrogen, oxygen, and water, resulting in huge therm
AURORKA [14]

Answer:

280 g

Explanation:

Let's consider the decomposition of ammonium nitrate.

NH₄NO₃(s) ⇒ N₂(g) + 0.5 O₂(g) + 2 H₂O(g)

We can establish the following relations:

  • The molar mass of NH₄NO₃ is 80.04 g/mol.
  • The molar ratio of NH₄NO₃ to N₂ is 1:1.
  • The molar mass of N₂ is 28.01 g/mol.

The mass of N₂ produced when 800 g of NH₄NO₃ react is:

800gNH_{4}NO_{3}.\frac{1molNH_{4}NO_{3}}{80.04gNH_{4}NO_{3}} .\frac{1molN_{2}}{1molNH_{4}NO_{3}} .\frac{28.01gN_{2}}{1molN_{2}} =280gN_{2}

6 0
3 years ago
Other questions:
  • Explain the composition of dna nucleotides and the structure of the dna molecule need help
    11·1 answer
  • Many trials are not needed before a hypothesis can be accepted
    5·1 answer
  • How many grams of CO are needed with an excess of Fe2O3 to produce 35.0 g Fe?
    15·1 answer
  • A common function of proteins and carbohydrates in the plasma membrane is...
    7·1 answer
  • i’m in desperate need of help haha. btw it’s 200 ml of a clear liquid and 50 ml of a different clear liquid. please help
    10·1 answer
  • Example of a stimulas and response in a organism
    11·1 answer
  • Determine the empirical formula of a
    9·1 answer
  • A high speed train travels 176 miles in 7 hours. What is the speed of the train
    15·1 answer
  • A bus travels 20km in 30minutes what is the average speed of the bus?
    10·1 answer
  • - Nitinol is an alloy of *
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!