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
elixir [45]
3 years ago
9

What chemical changes happen at school

Chemistry
1 answer:
kykrilka [37]3 years ago
8 0

Burning, cooking

Explanation:

Chemical changes that happens in school are:

Cooking of meals

 Burning of wastes

 Chemical reactions in laboratories

Rusting of iron used in construction

  • A chemical change is a change that produces new kinds of substances.
  • These changes are usually accompanied by energy and mass changes.
  • Most of such changes are not reversible.

Chemical changes are driven by change in chemical properties of matter.

In a school, iron components might begin to rust. This is a chemical change.

learn more:

Chemical change brainly.com/question/9388643

#learnwithBrainly

You might be interested in
How are the number of protons represented in the periodic table?
Sav [38]

Answer:

The atomic number represents the number of protons

Explanation:

5 0
3 years ago
Read 2 more answers
When parallel light rays exit a concave lens,the light ray is?
ad-work [718]
When parallel rays exit a concave lens, the light rays are divergent.
The rays diverge or bend away from the axis it has been traveling upon entering the lens when it reaches the other side of the lens. These rays appear to have come from the same focal point before entering the concave lens. When these parallel rays are extended, it will be traced back to a single point of origin.
5 0
3 years ago
Read 2 more answers
Hydrogen sulfide gas is reacted with dioxygen gas to produce gaseous sulfur dioxide and water. True or false?.
wel

Hydrogen sulfide gas is reacted with dioxygen gas to produce gaseous sulfur dioxide and water. It is false.

When hydrogen sulfide gas reacts with dioxygen gas, it produces water and solid Sulphur and not gaseous sulfur. The chemical equation of the given substances is :

                   2H2S +  O2 → 2S + 2H20

It is a redox reaction as both Oxidation and reduction happens in it. Oxidation of hydrogen sulphur to sulphur happens and reductions of oxygen to water takes place.  

if you need to learn more about chemical reaction of Hydrogen sulfide gas, click here

brainly.com/question/15842521?referrer=searchResults

#SPJ4

4 0
2 years ago
Match each scientist to their discovery regarding the atom
neonofarm [45]

Answer:

Thomson--atoms cotain electron

Ernest Rutherford--atoms have a positive nucleus

R.A Millikan--electrons have Q=-1

Dalton--atoms are indivisible

3 0
3 years ago
Read 2 more answers
1 Flower color D. What color are the parents?
timofeeve [1]

Answer:

what is the baby flowers color?

Explanation:

if the baby flower is purple the parents were purple

6 0
3 years ago
Other questions:
  • Please help me i need help
    8·2 answers
  • What is the mass of 2.25 moles of manganese(lv) sulfide(MnS2)
    8·2 answers
  • Why do automobiles rust more easily in wet climate than drier climates
    11·1 answer
  • Name the biome that has nutrient rich soil and is most often used for agriculture
    6·1 answer
  • A- Gases do not have mass.
    11·1 answer
  • What are the signs given to the electrodes in both the voltaic and electrolytic cells? What reaction (oxidation or reduction) is
    12·1 answer
  • Compare urban and rural land .how are each used?
    13·1 answer
  • Which techniques would be best for separating a
    9·1 answer
  • You’re a little baby sister knocks over the vase of flowers on the table what kind of force is your baby sister
    10·1 answer
  • One person is pulling with a force of 250 newtons and the other person is pulling with a force of 200 newtons. The total force o
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!