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
asambeis [7]
3 years ago
15

Why didn't scientists know about atoms for a long time

Chemistry
1 answer:
fredd [130]3 years ago
6 0
They didnt have a powerfull enough microscope to see them an when they could they were moving to fast unless they were cold

You might be interested in
Which reaction can be used to make 2,3 dichloropentane?
lina2011 [118]

Answer:

B) substitution

Explanation:

2,3 dichloropentane is a hydrocarbon that contains two chlorine atoms in its chain. It has a chemical formula: C_{5} H_{10} Cl_{2}. In the compound, two hydrogen atoms has been substituted by two chlorine atoms.

A substitution reaction is a process by which an atom of a compound is being replaced by another atom to form a new compound due to a chemical reaction. This is one of the general properties of alkanes.

4 0
3 years ago
What is the mass of 89.6 L of SO2 gas at STP?
Trava [24]

wait I have an wuestion is that high school work

8 0
3 years ago
What are centimeters, kilometers, and millimeters?
Musya8 [376]
They are different measurements
7 0
3 years ago
Read 2 more answers
The law of conservation of mass says that *
BabaBlast [244]
The answers would be the mass before a reaction is the same as the mass after a reaction which basically means mass is conserved
8 0
2 years ago
A 38.6 kg marble slab is shown above. What is its density? Give your answer to the nearest tenth.
LuckyWell [14K]

Answer:

Density, d=26.7\ g/cm^3

Explanation:

The attached figure shows a 38.6 kg marble slab. The dimensions of the marble slab is 23 cm × 17 cm × 4 cm

Density = mass/volume

Volume of a cuboid shape is equal to, V = 23 cm × 17 cm × 4 cm

V = 1564 cm³

Density,

d=\dfrac{38.6\times 10^3\ g}{1564\ cm^3}\\\\d=24.68\ g/cm^3

or

d=26.7\ g/cm^3

So, the density of the marble slab is 26.7\ g/cm^3.

6 0
3 years ago
Read 2 more answers
Other questions:
  • 1. Based on the information from the movie, what can you conclude about the most common chemical compound on earth?
    8·1 answer
  • what is the difference between aqueous hydrogen fluoride and hydrofluoric acid? do they have different formulas or are they just
    6·1 answer
  • How many grams are in 0.005 moles of lead (IV) sulfate, Pb(SO­4)2 Group of answer choices 1.5 g 502.74 g 0.0045 g 1.996 g
    8·1 answer
  • 7. Kinetic energy increases with:
    5·2 answers
  • Which element would have similar properties to Sulfur? Chlorine O a ob Fluorine Oxygen Nitrogen​
    6·1 answer
  • How many grams of CO2 are in 2.52mol of CO2
    7·1 answer
  • PLEASE CAN SOMEONE PLEASE HELP ME I CAN'T DO IT :(
    15·1 answer
  • Which phrase best describes earths atmosphere
    7·1 answer
  • How does acid base extraction work.
    13·2 answers
  • Compare both images located above. Which of the two is an elastic collision and
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!