All categories

3 years ago

The person to introduce the idea of an "atom" was _____.

Chemistry

2 answers:

Alexus [3.1K]3 years ago

8 0

Answer:

The correct answer is Democritus.

Explanation:

Democritus, a Greek philosopher, and scientist in 440 B. C. proposed the theory of the atom. Democritus made his theory of atoms depend on the work of previous philosophers according to different scientists.

His explanation of the atom begins a stone cut in half gives two halves. If stone again and again continuously cut, at some point the stone becomes so small that it could no longer be cut, that atoms present separately from each other.

Thus, the correct answer is Democritus.

nadezda [96]3 years ago

5 0

The answer is Democritus. He first started to propose the idea in the 5th century B.C.

You might be interested in

A pet owner dropped some new fish into a pond. Several species of fish lived in the pond, but within a few months, only members

Daniel [21]

Answer: the correct answer is : too many fish caused an imbalance in the ecosystem, so the food web was affected.

Explanation:

8 0

3 years ago

I need help on this plsss

Firlakuza [10]

Answer:

An engine that creates ignites fuel with highly compressed air.

6 0

3 years ago

Read 2 more answers

What does composing mean?

levacccp [35]

Answer:

$Composing \: means \: to \: come \: together \: to \: \\ form \: or \: make \: something.$

Explanation:

Thank you!!!!

4 0

2 years ago

Read 2 more answers

Does Ag metal reacts with NaOH

joja [24]

No Ag cannot react with NaOH because Ag is less reactive than Na in the reactivity series and can't displace it

5 0

3 years ago

A sample of propane (C3H8) has a mass of 0. 47 g. The sample is burned in a bomb calorimeter that has a mass of 1. 350 kg and a

Nady [450]

The amount of heat released by the sample has been 22.54 kJ. Thus, option C is correct.

The specific heat has been defined as the amount of heat required to raise the temperature of 1 gram of substance by 1 degree Celsius.

The specific heat has been expressed as:

$q=mc\Delta T$

<h3 /><h3>Computation for the heat absorbed</h3>

The iron and calorimeter are in side the closed system. Thus, the energy released by the sample, has been equivalent to the energy absorbed by the calorimeter.

$q_{released}=q_{absorbed}\\
q_{released}=m_{calorimeter}\;c_{calorimeter}\;\Delta T$

The given mass of calorimeter has been, $m_{calorimeter}=1350\;\rm g$

The specific heat of the calorimeter has been, $c_{calorimeter}=5.82\;\rm J/g^\circ C$

The change in temperature of the calorimeter has been, $\Delta T=2.87^\circ \rm C$

Substituting the values for heat released:

$q_{released}= 1350\;\text g\;\times\;5.82\;\text J/\text g^\circ \text C\;\times\;2.87^\circ \text C\\
q_{released}=22,549.5\;\text J\\
q_{released}}=22.54\;\rm kJ$

The amount of heat released by the sample has been 22.54 kJ. Thus, option C is correct.

Learn more about specific heat, here:

brainly.com/question/2094845

6 0

2 years ago