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
brilliants [131]
3 years ago
12

In which of the following examples has a chemical reaction occurred?

Chemistry
1 answer:
katrin2010 [14]3 years ago
3 0
"A" is the answer. The chemical reaction is when the batter becomes brown.

B is mixing C is mass becoming a liquid and D. is dissolving no chemical reaction happened there.

Hope that helps!
You might be interested in
does the nitro group on the pyridine ring make the ring more electron rich or more electron deficient
Arte-miy333 [17]

Answer:

more electron deficient

Explanation:

The nitro group is an electron withdrawing group. It withdraws electrons from the pyridine ring by resonance.

This electron withdrawal by resonance makes the pyridine ring less electron rich or more electron deficient.

Hence, the nitro group makes the pyrinde ring more electron deficient

3 0
3 years ago
Provide three different examples of how minerals can form on earth
Misha Larkins [42]
A mineral is a naturally occurring , solid, crystalline substance with a specific chemical composition. Minerals are usually inorganic and are formed by ionic, covalent or metallic bonding. Ionic bonds are the dominant type of bonds in mineral strictures. 90% of all minerals are ionic compounds. Minerals bonded by covalent bonds are strong, for example carbon bonded together to form diamond. Metallic bonds are a type of covalent bonds where the atoms have a strong tendency to lose electrons and pack together as cations. 
6 0
3 years ago
Which of the following is NOT true?
zepelin [54]

Answer:

it's answer 2

Explanation:

magnets can only move metal

7 0
2 years ago
How do you find the highest energy level?
joja [24]

Answer:

The larger the number of the energy level, the farther it is from the nucleus. Electrons that are in the highest energy level are called valence electrons. Within each energy level is a volume of space where specific electrons are likely to be located.

4 0
2 years ago
Oxygen gas generated in the thermal decomposition of potassium chlorate is collected over water. At 24ºC and an atmospheric pres
Yanka [14]

Answer:

its 0.163 g

Explanation:

From the total pressure and the vapour pressure of water we can calculate the partial pressure of O2​

PO 2 =P t −P H 2 O

​= 760 − 22.4

=  737.6 mmHg

From the ideal gas equation we write.

W= RT/PVM = (0.0821Latm/Kmol)(273+24)K(0.974atm)(0.128L)(32.0g/mol/) =0.163g

6 0
2 years ago
Other questions:
  • In the lewis structure of ch3oh, how many lone pairs of electrons are there? in the lewis structure of ch3oh, how many lone pair
    14·1 answer
  • What is the term?
    14·1 answer
  • Which statements describe inorganic compounds? Check all that apply
    9·2 answers
  • Which question can be answered using the scientific method ?
    8·1 answer
  • Which statement holds true when the molar mass of hydrogen is 2.0 grams and that of helium is 4.0 grams? Hydrogen effuses 1.4 ti
    8·1 answer
  • Question 11 please HELP
    9·1 answer
  • HELP PLEASE!!!
    5·1 answer
  • Which one of the following is correct about automobile batteries.
    15·1 answer
  • An atom with 3 protons and 4 neutron​
    14·2 answers
  • Your weight changes if you travel to the moon because _____.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!