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
uysha [10]
3 years ago
5

Which of the following is an

Chemistry
1 answer:
eimsori [14]3 years ago
5 0

Answer:

2 and 4

Explanation:

The rest of the changes are chemical. 1 has a chemical reaction happen which makes light sticks glow. 3 is because browning the meat actually causes some new compounds to form and cause caramelization.

For 2, the oxygen is simply heating up and expanding which pops the balloon. 4 is just a phase change of water vapor to liquid water.

You might be interested in
Does the Ba(OH)2 solution contain ions?
LUCKY_DIMON [66]
Yes. It does contain Ions. 
4 0
3 years ago
Read 2 more answers
According to the data, the temperature of the
Vadim26 [7]

Answer: 351

Explanation: From °C to kelvin we do

K=273+°C

From Kelvin to °C we do

°C=K-273 or -273+ K

7 0
3 years ago
1. What kind of diagram shows how energy flows from one organism to another?
shusha [124]
It would be D.the food chain
5 0
3 years ago
Which<br> countries were the world leaders in space exploration throughout the 1960's?
g100num [7]

Answer:

the us and the soviet union

Explanation:

7 0
3 years ago
What do radio waves and gamma rays have in common?
padilas [110]

Answer: The sequence from longest wavelength (radio waves) to shortest wavelength (gamma rays) is also a sequence in energy from lowest energy to highest energy. ... The energy carried by a radio wave is low, while the energy carried by a gamma ray is high. Different materials can block different types of light.

PLEASE MARK BRAINLIEST

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is the ground state of an atom? Which is its excited state? Which is an impossible electron configuration
    6·2 answers
  • Will give Brainliest to the best answer! Please help ASAP!
    13·1 answer
  • How many grams of diphosphorus trioxide are required to produce 10.2 moles of phosphorus acid
    6·1 answer
  • What occurs at one of the electrons in both an electrolytic cell and voltaic cell
    6·1 answer
  • Classify unopened root beer as an element, a compound, a homogeneous mixture, or a heterogeneous mixture
    10·1 answer
  • Different oil refineries in UAE
    10·1 answer
  • In Experiment 1, salicylic acid was treated with an excess of acetic anhydride to synthesize aspirin. Once the reaction went to
    14·1 answer
  • When particles have more room to spread apart from each other, they will exert ????
    11·1 answer
  • How many molecules of NaOH are in 23<br> moles of NaOH
    8·1 answer
  • Which of the following best describe the chronological way of specimen preparation?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!