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
raketka [301]
3 years ago
6

_____________________ held that all matter is made up of four “elements”— earth, air, fire, and water.

Chemistry
1 answer:
Novosadov [1.4K]3 years ago
4 0

Answer:

Democritus

Explanation:

He spoke about matter was made of tiny particles which moved in empty space

You might be interested in
Some properties of liquid water are very different from those of solid water (ice). Explain why freezing is considered a physica
drek231 [11]

Answer:

A chemical change is a change in the chemical makeup of a substance and results in a new substance. Ice and water both have the same chemical makeup - ice is just a different state and has the same atoms but in an expanded form.

Explanation:

8 0
3 years ago
If the formula for a compound is represented by X3Y2 and the charge on the Y ion is -3, what is the charge in the X ion?
artcher [175]
I cannot fully remember but the charge of a compound always has to be the same.  However, I believe that the sign of the Y2 means that it is positive 2. 

so in my opinion it is in between b and c. use your best judgment. 
3 0
3 years ago
I've been waiting for like 10 mins. Please answer this.
Degger [83]

The answer is B. 6CO2+H2O yields C6H12O6+ 6H20.

3 0
3 years ago
Read 2 more answers
Below is a word equation. Please follow directions for each part below.
alukav5142 [94]

Answer:

CH3OH + 02 ----> C02 + H20

balanced equation -

CH3OH + 3/202 ----> C02 + 2H20

Use exactly the same process as the one used on another question of yours I answered.

8 0
2 years ago
All of the following show a periodic pattern except
AlekseyPX
<span>A. the dog ate everyone of his play toys</span>
4 0
3 years ago
Other questions:
  • A student has an unknown sample. How can spectroscopy be used to identify the sample?
    9·1 answer
  • An atom of helium has a radius of 31. pm and the average orbital speed of the electrons in it is about 4.4x 10 m/s Calculate the
    11·1 answer
  • Why is the ionic compound NaCl (table salt) able to dissolve in a glass of the molecular compound water (H2O)?
    7·2 answers
  • Look at the diagram of an electrolytic cell below.
    8·1 answer
  • To prepare for a laboratory?
    13·1 answer
  • In the following reactions identify which substances are solid (s) or aqueous (aq). 1. Li,SO4( aq ) + MgCl, ( aq ) - 2LICI ( 2LI
    14·1 answer
  • HELP ASAPP
    5·1 answer
  • A 23.7 g piece of iron at 54.9 C is cooled and releases 338 J of heat. The specific heat of iron is 0.450 J/gC. What is the fina
    6·2 answers
  • What is neutralization ?
    7·1 answer
  • 5 The apparatus shown below was set up. Give explanations for the following observations.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!