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
mixas84 [53]
3 years ago
6

What contribution to the field of chemistry was made by john dalton?

Chemistry
1 answer:
nadya68 [22]3 years ago
7 0
<span>His atomic theory proposed in 1803. In the theory he reasoned that tiny particles called atoms make up elements.</span>
You might be interested in
Part G Wavelength is the distance between the crests (tops) or the troughs (bottoms) of two waves that are next to each other. N
Vlada [557]

Answer: 4.4

Explanation:

Thats what my computer says after i submit answer

3 0
3 years ago
**Narrowed it down please help!**
natka813 [3]

Answers:

1. B.)

2. Both A.) and B.)

3. A.)

Step-by-step explanation:

1. Ions in gas phase

A plasma is a gas consisting of electrons and positively charged ions.

Because the particles are ions and electrons, rather than neutral atoms or molecules as in ordinary gases, scientists consider a plasma to be a fourth state of matter<em>.</em>

2. Kinetic Molecular Theory

Both activities illustrate the postulate.

A.) If the particles are extremely small and far apart, most of the volume of a gas is empty space. That's why it's easy to push the plunger of a capped nozzle syringe containing a gas.

B.) If the particles are far apart, it's easy for a coloured gas to spread into an inverted jar placed on top of a jar containing the gas.

3. Hot air balloon

The high temperature in the balloon makes the gas molecules spread apart according to Charles's law, because this law describes how a gas will behave at constant pressure.

As the hot air escapes from the vent, the combined mass of balloon + hot air becomes less than the mass of cold air that it displaces, and the balloon rises.

B.) is <em>wrong</em>. Boyle's law applies only when both the number of moles and  the temperature remain constant.

4 0
3 years ago
It is best to dispense chemicals from large stock bottles into smaller containers for use at your lab station because smaller co
Orlov [11]

Answer:

True

Explanation:

Dispensing chemical from large stock bottles into smaller container makes sure that students only takes the quantity they need which reduces wastage. Also in situation where the students did not finish the reagent or chemical it is easier for student to pour back into smaller bottle than the entire reagent bottle which can contaminate the whole solution. Small bottles prevent or reduces the risk of spillage because it is easier to handle and pour.

7 0
3 years ago
Complete the chemical change. Na → Na+ <br><br> a.)2e-<br> b.)proton<br> c.)1e-
statuscvo [17]
C) 1e- is the answer because you need that in order to balance the charges
5 0
3 years ago
Read 2 more answers
When warm air is forced upward along a cold front what might happen?
mote1985 [20]

Answer: With the cold front, warm air is rapidly forced upward (like the shavings) in advance of the actual front (the “cutter”), creating towering cumulus clouds, some hard showers and quite possibly a few gusty thunderstorms followed by a push of cooler and drier air in its wake.

Explanation:

8 0
2 years ago
Other questions:
  • What mass of Al contains the same number of atoms as 33.5g of Au
    8·1 answer
  • What element marks the boundary between using fusion and fission to release energy?
    6·1 answer
  • Convert 0.14 kilograms to grams.
    8·1 answer
  • If D+2 would react with E-1, what do you predict to be the formula?
    9·1 answer
  • Why does the mass number for an element differ from the average atomic mass for the element?​
    6·1 answer
  • What happens to colors in sunlight when droplets of water in the atmosphere act like prisms?
    12·2 answers
  • Explain why the catalyst is used as a very fine powder and larger pieces of iron are not used.
    7·1 answer
  • Solid Silicon can be reacted with Nitrogen gas at a high temperature to form silicon nitride (Si3N4).
    8·1 answer
  • HELP ME PLS!! I FORGOT TO STUDY Which may result from an increase in friction?
    8·2 answers
  • NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!