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
aliya0001 [1]
2 years ago
8

What are some examples of a chemical change? (list more than 2 examples)

Chemistry
2 answers:
postnew [5]2 years ago
5 0
Chemical batteries, Digestion, Photosynthesis, Cooking food
Reil [10]2 years ago
4 0

Cooking any food.

Burning of wood.

Digestion of food.

Acid-base reaction.

You might be interested in
Sevin, the commercial name for an insecticide used to protect crops such as cotton, vegetables, and fruit, is made from carbamic
xeze [42]

Answer:

Explanation:

Ratio of mass of C , N , H and O

= .8007 :0.9333:0.2016:2.133

Ratio of moles of C , N , H and O

= .8007/12 : .9333 / 14 : 0.2016 / 1 : 2.133/16

= .0667 : .0667: .2016 : .1333

= .0667 / .0667 : .0667 / .0667 : .2016 /.0667 : .1333 / .0667

= 1 : 1 : 3: 2

Hence empirical formula = CNH₃O₂

7 .

Weight of titanium Ti = 1.916 g

Weight of oxygen = 3.196 - 1.916 = 1.28 g

Ratio of weight of Ti and O

= 1.916 : 1.28

Ratio of moles  of Ti and O

1.916/48 : 1.28/16  [ Molecular  weight of Titanium is 48 ]

= .04 : .08

= .04/.04 : .08/.04

= 1 :2 .

Empirical formula

TiO₂

5 0
2 years ago
Describe what is happening to the density of the aqueos solution as salt is being added​
Gala2k [10]
Key concepts
Density
Mass
Volume
Concentration
Buoyancy
Water
3 0
3 years ago
Read 2 more answers
Match each state of matter to its description.
WARRIOR [948]

Answer:

Explanation:

solid would be a wall e.g

liquid would be water e.g

gas would be oxygen e.g

6 0
2 years ago
What is the correct electron configuration of the element with atomic number 20?
IgorLugansk [536]

Answer:

D is the correct answer

s orbital contain 2

p orbital contains 6

3 0
2 years ago
What's the boiling point of water at 0 atmospheric pressure?
nirvana33 [79]

Answer:

The water will evaporate and fly out of the bucket; the process will not stop until there is enough water vapor in the atmosphere that the vapor pressure stops the water from boiling further.

Explanation:

4 0
2 years ago
Other questions:
  • The density of copper is 8.9 g/ml. How many Cm of copper are in 0.283kg of copper?
    6·1 answer
  • Look at the reaction below.
    8·2 answers
  • How do scientists determine the number of neutrons in an isotope of an atom? O They find the number of protons. 0 They add the n
    9·1 answer
  • What type of silicate mineral is olivine?
    7·1 answer
  • A liquid that occupies a volume of 9.0 L has a mass of 7.2 kg. What is the density of the liquid in kg/L ?
    10·2 answers
  • 5. Using the terms: metal and nonmetal, describe what types of atoms make up each type of<br> bond.
    12·1 answer
  • What property of matter best describes the way a typical alcohol thermometer works?
    7·1 answer
  • A gas that has a volume of 28 Liters, a Temperature of 318 K, and an unknown pressure initially
    7·1 answer
  • g calculate the quantity of energy produced per gram of uranium 235 for the neutron induced Fusion of uranium
    11·1 answer
  • 21)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!