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
ivann1987 [24]
3 years ago
6

What four elements did the ancient greeks think the world was made of ?

Chemistry
2 answers:
aalyn [17]3 years ago
3 0
Earth, water, air, and fire
Murrr4er [49]3 years ago
3 0

Earth,Fire,Water,and Air

You might be interested in
How can you use the Periodic Table of Elements to help you find information about specific elements? PLZZZ HELP MEEEEEE!!!!
elena-14-01-66 [18.8K]

Answer:

Yuh imma help-........

6 0
3 years ago
HELP ME PLEASE!!!
krok68 [10]

Answer:

Br (Bromine)

H (Hydrogen)

Explanation:

7 0
3 years ago
If the energy of the reactants is less than
expeople1 [14]
The opposite type of reaction (where energy is taken in from the surroundings of a reaction and thus the energy of the reactants is lower than that of the products) is called an endothermic reaction
7 0
2 years ago
Calcuate the number of<br> grams of solute in 453.9mL<br> of 0.237 M calcium acetate
AysviL [449]

The number of  grams : 17.082 g

<h3>Further explanation</h3>

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

\large {\boxed {\bold {M ~ = ~ \dfrac {n} {V}}}

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

453.9 mL  of 0.237 M calcium acetate

  • mol

\tt mol=M\times V=0.237\times 0.4539=0.108

  • mass

MW Ca(C₂H₃OO)₂ : 158,17 g/mol

\tt mass=mol\times MW\\\\mass=0.108\times 158.17=17.082~g

4 0
3 years ago
Please help!!!!
Nat2105 [25]

Answer:

When an atom gains or loses energy, the  energy of an electron can change.

An electron in an atom can move from one  energy level to another when the atom gains  or loses energy.

Explanation:

The possible energies that electrons in an atom

can have are called energy levels.

• An electron cannot exist between energy levels.

https://1.cdn.edl.io/tTlW7xRtvD62xSe7RcZlJr7kSR7XsL93akcgJkbGJBNNcpwY.pdf

*this link can also help* brainly ist plz

8 0
3 years ago
Read 2 more answers
Other questions:
  • Most scientific questions are developed from
    12·2 answers
  • There are some exceptions to the trends of first and successive ionization energies. For each of the following pairs, explain wh
    7·2 answers
  • How might a theory relate to a model
    8·1 answer
  • The enthalpy change for the explosion of ammonium nitrate with fuel oil is –7198 kJ for every 3 moles of NH4NO3. What is the ent
    13·1 answer
  • How is using a bow and arrow mechanical and potential energy?
    10·2 answers
  • 44.2124+0.81+7.335 significant digits
    13·1 answer
  • Properties of a solution that depend only on the ratio of the number of particles of solute and solvent in the solution are know
    8·1 answer
  • Which of the following best describes the location of element Tin?
    13·2 answers
  • In 11.06 grams of C5H11OH how many grams of water can be produced?
    10·1 answer
  • 3NO₂ + H₂O → 2HNO3 + NO 3NO₂ + H₂O → 2HNO3 + NO
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!