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
irakobra [83]
3 years ago
15

Explain the idea that the greek philosopher democritus proposed

Chemistry
1 answer:
sertanlavr [38]3 years ago
5 0
Democritus was a Greek philosopher who studied natural phenomena and concluded together with his mentor, that all matter is made up of tiny particles he called atoms. The basic tenets of this theory are that atoms are invisible, indestructible, are homogeneous, are solid and differ in shape, mass, size arrangement and postion.

You might be interested in
The student adds 0.0010 mol of NaOH(s) to solution Y, and adds 0.0010 mol of NaOH(s) to solution Z. Assume that the volume of ea
julia-pushkina [17]

Answer:

The answer is in the explanation.

Explanation:

A buffer is defined as the aqueous mixture of a weak acid and its conjugate base or vice versa. Buffers are able to avoid the pH change of a solution when strong acid or bases are added (As NaOH).

Based on the experiment, it is possible that the solution Z was a buffer and Y another kind of solution. For this reson, pH of the solution Y changes much more than the pH of solution Z changes despite the amount of NaOH added is the same in both solutions.

6 0
3 years ago
Select the correct answer.
jeyben [28]

Answer:

A. Second

Explanation:

The S.I unit of time is in Seconds.

The S. I unit is known as the metric system is the most commonly used system of reporting scientific measurements in the world today. Other units are the imperial units.

It is the international system of unit used in almost all countries. The seven basic SI units are:

        Quantities                                    Units

  • Length                                         meters(m)    
  • Time                                            seconds(s)
  • Amount of substance                 moles(mol)
  • Mass                                            kilograms(kg)
  • Luminous intensity                     candela(cd)
  • Temperature                               kelvin(K)
  • Electric current                            ampere(A)

The SI unit of time which measures the duration of an activity or event is therefore given as seconds(s)

3 0
4 years ago
When two or more atoms differ only in the number of neutrons that each contains, what property or properties change?
coldgirl [10]

Answer: Mass only

Explanation:

7 0
3 years ago
A sample was collected and analyzed. If there are only three gasses present, the total pressure of the sample is 194.66 kPa, the
dmitriy555 [2]
I dont get the question
6 0
3 years ago
The diameter of a cream-filled cookie is approximately 44 millimeters (mm). An atom of bismuth (Bi) is approximately 320. picome
KATRIN_1 [288]

Answer:

1.4e+8 bismuth atoms

Explanation:

If           10³ mm = 10¹² pm

then     44 mm = X pm

X = (44 × 10¹²) / 10³ = 44 × 10⁹ pm (which is the cookie diameter in picometers)

Now we can calculate the number of bismuth atoms needed to span the diameter of the cookie:

number of bismuth atoms = cookie diameter / bismuth atom diameter

number of bismuth atoms = 44 × 10⁹ / 320 = 0.1375 × 10⁹ atoms = 1.375 × 10⁸ atoms

And now to respect the answer format requested by the problem:

1.375 × 10⁸ = 1.375e+8 ≈ 1.4e+8

6 0
4 years ago
Other questions:
  • Uldilges of State
    7·1 answer
  • In the diagram attached inside, if electrons flow from the right half-cell to the left one through the wire, which of the follow
    13·2 answers
  • 2.41 x 1024 formula units of NaCl
    6·1 answer
  • HELP ME!! THANH YOU If an atom has 80 protons and 121 neutrons, and is not in an excited state, how many electrons would Bohr sa
    5·1 answer
  • The elementary gas-phase reaction (ch3)3cooc(ch3)3→c2h6+2ch3coch3 is carried out isothermally in a flow reactor with no pressure
    12·1 answer
  • In this part of the periodic table, what type of elements are in the group that includes elements c, o, and s?
    5·1 answer
  • A student collects 25 mL of gas at 0.98 bar. What volume would this gas occupy at 1.013 bar? * 3 points 25.8 mL 24.2 mL .09 mL 3
    14·1 answer
  • What is set in mathematics​
    13·2 answers
  • The number of protons and neutrons in an atom is that atoms __ number.
    8·1 answer
  • 70 POINTS NEED HELP ASAP. ONLY CORRECT ANSWERS PLEASE.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!