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
Alchen [17]
3 years ago
8

Which of the following are units for energy? Gram, joule, kilogram, calorie

Chemistry
1 answer:
Mandarinka [93]3 years ago
6 0
The answer is Joule. Kilograms and Grams is a unit for weight
You might be interested in
What is the primary greenhouse gas?
elena55 [62]
I think co 2 maybe
I cant remember
8 0
4 years ago
What is the difference between hot and cold atoms?
lesya [120]
In hot water the molecules move faster versus In cold water they move slower (hope that helps)
6 0
3 years ago
Suppose 2.8 moles of methane are allowed to react with 5 moles of oxygen.
Ronch [10]

Answer : The limiting reagent is O_2

Solution : Given,

Moles of methane = 2.8 moles

Moles of O_2 = 5 moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

CH_4+2O_2\rightarrow CO_2+2H_2O

From the balanced reaction we conclude that

As, 2 mole of O_2 react with 1 mole of CH_4

So, 5 moles of O_2 react with \frac{5}{2}=2.5 moles of CH_4

From this we conclude that, CH_4 is an excess reagent because the given moles are greater than the required moles and O_2 is a limiting reagent and it limits the formation of product.

Hence, the limiting reagent is O_2

8 0
3 years ago
State the postulate of Bohr theory
KengaRu [80]

Answer:

Bohr's model of the hydrogen atom is based on three postulates:

1) An electron moves around the nucleus in a circular orbit,

2) An electron's angular momentum in the orbit is quantised,

3) The change in an electron's energy as it makes a quantum jump from one orbit to another is always accompanied by the emission or absorption of a photon. Bohr's model is semi-classical because it combines the classical concept of electron orbit (postulate 1) with the new concept of quantisation ( postulates 2 and ).

4 0
3 years ago
acetaminophen is a stronger acid than methanol, and sodium methoxide is a stronger base than. write an acid base equilibrium rea
torisob [31]

Answer:

The equilibrium shifts to the right that is the forward reaction.

Explanation:

The chemical compound known as "Acetaminophen" is a chemical compound that is generally known to a layman as Paracetamol and it belongs to the drug class known as anagelsics which helps in the treatment of pain or say in the reduction of pain. Acetaminophen has the chemical Formula to be C8H9NO2, with the Molar mass of 151.163 g/mol and Boiling point of 420 °C.

The reaction between Acetaminophen and sodium methoxide gives methanol and acetaminophen sodium salt. Therefore, the acid base equilibrium reaction of these species is given as;

C8H9NO2 + CH3ONa <========> CH3OH + acetaminophen sodium salt.

The equilibrium shifts to the right that is the forward reaction.

8 0
3 years ago
Other questions:
  • 6. Which group of compounds is described as insoluble?
    5·1 answer
  • Muscles work in _____ so when other muscles contract the other ___
    13·1 answer
  • The reaction below is at dynamic equilibrium. mc004-1.jpg Which statement is true for the equilibrium system? The concentration
    13·2 answers
  • Does the color of bell peppers effect the number of seeds inside? Please someone help ASAP I need it today
    9·1 answer
  • On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the nex
    15·1 answer
  • Which scientist is known for developing the planetary model of the atom
    15·1 answer
  • What causes atoms to have magnetic properties
    9·2 answers
  • Explain the properties of acids
    5·1 answer
  • The reaction of an acid and a base will always produce what kind of salt?
    15·1 answer
  • What titrant will be used to titrate the 0. 02 m hcl phenol red solution?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!