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Aloiza [94]
2 years ago
11

The first person who suggested that matter was made up of atoms was the Greek philosopher ____________________ .

Chemistry
2 answers:
abruzzese [7]2 years ago
4 0

Answer:

Democritus

Explanation:

Bond [772]2 years ago
4 0

Answer:

Democritus of Abdera

Explanation:

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Myriah wants to use dimensional analysis to find out how many centimeters (cm) are in 1.4 meters (m).
WINSTONCH [101]
1400 centimeters in 1.4 millimeters
4 0
2 years ago
2. A chemical analysis of a sample provides the following elemental data:
Vadim26 [7]

Answer:

C3 H6 O2

Explanation:

first divide their mass by their respective molar mass, we get:

30.4 moles of C

61.2 moles of H

20.25 moles of O

now divide everyone by the smallest one of them then we get

C= 1.5

H= 3

O= 1

since our answer of C is not near to any whole number so we will multiply all of them by 2

so,

C3 H6 O2 is our answer

3 0
1 year ago
What are the amount of moles in 12.15 grams of Magnesium?
zaharov [31]
I think the amount would be a 0.4998 mol
I did moles=mass(g)/A,r
=12.5/24.3 to get that
8 0
2 years ago
J.J. Thomson's model of the atom includes all BUT ONE of these features. That is
kakasveta [241]

Answer:

D

Explanation:

usa testprep!!!!!

8 0
2 years ago
a. What condition must be met for an activated complex to result from the collision of reactant particles? b. Where, in terms of
weeeeeb [17]

Answer:

A. The conditions are:

I. Reactant particles must collide with the right orientation.

II. There must be effective collisions.

III. The reactant particles must possess enough energy to break old bonds so that new bonds can be formed.

B. The activated complex occurs where the maximum energy of the reaction is attained along the reaction pathway, that is, at the peak of the activation energy.

6 0
3 years ago
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