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
serg [7]
3 years ago
8

What is enthalpy in chemistry pls help

Chemistry
1 answer:
Yakvenalex [24]3 years ago
8 0
<span>a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system.</span>
You might be interested in
An ion always has a ________ or ________ charge. While a covalent bond always has no _________, meaning it is __________.
almond37 [142]
An ion has a positive or negative charge. While a covalent bond always has no charge, meaning it is neutral. 
5 0
3 years ago
40 g of CaCO3 is how many moles of CaCO3?<br> 10 moles<br> 0.4 moles<br> 40 moles<br> 100 moles
AleksandrR [38]

Answer:

0.4 moles

Explanation:

To convert between moles and grams you need the molar mass of the compound. The molar mass of of CaCO3 is 100.09g/mol. You use that as the unit converter.

40gCaCO3* 1mol CaCO3/100.09gCaCO3 = 0.399640 mol CaCO3

This rounds to 0.4 moles CaCO3

8 0
3 years ago
Which is the best practice recommended in the safety video to mix and acid or a base with a solvent?
Vesna [10]

Answer:

Never pour water into acid but acid into water

Explanation:

If water is poured into extremely concentrated acid/bases, the rate of volatility and exothermic reaction is too rapid and might cause a chemical eruption, leading to acid burns.

Safety precautions hence dictate the reverse is practiced.

I believe this is a clear answer.

4 0
3 years ago
What is the SI unit for energy? How is it abbreviated?
hjlf

Answer:

Joule - J

Explanation:

As energy is defined via work, the SI unit of energy is the same as the unit of work – the joule (J).

3 0
3 years ago
E the table below for the next three questions.
Sliva [168]

Answer:

Explanation:i would go wit d

6 0
3 years ago
Other questions:
  • What can the vast majority of elements in the periodic table be classified?
    13·2 answers
  • In order to amend the Articles of Confederation, how many votes were needed? A) 7 B) 9 C) 10 D) 13
    6·2 answers
  • Can yall help on this ??? Asappp
    12·2 answers
  • "Science" and "technology are words that often are mixed up, even though they have
    14·1 answer
  • How does a balenced chemical equation satisfy the Law of Conservation of Mass?
    6·1 answer
  • Based on the oxidation states of the atoms in this reaction, answer the questions. 4Fe(0) + 3O2(0) → 2Fe2(3+)O3(2-) How many ele
    10·1 answer
  • Which of the following could be a benefit of climate change?
    15·1 answer
  • When gas molecules collide with other gas molecules or the walls of a container, does it affect their speed?
    15·1 answer
  • Rock whose texture, mineralogy, or chemical<br> composition has been altered without melting it.
    13·1 answer
  • PLEASE HELP URGET!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!