Answer:
A is the answer as long as i can remember i was taught
Answer: 1.01 atomic mass units or amu
Explanation:
<u>Step 1- Find each element's molar mass:</u>
K=39.1, Cr=52, O=16
<span><u>Step 2-Multiply by their subscripts:</u>
</span> K=39.1*2=78.2
Cr=52*1=52
O=16*4=64
<span><u>Step 3-Find the molecule's molar mass:</u>
</span> 78.2+52+64= 194.2
<u>Step 4- Divide each element's mass by the </u><span><span><u>molecule's:</u>
</span> K: </span>78.2/194.2= 40.3%
Cr: 52/194.2=26.8%
O: 64/194.2=32.9%
<em>(if this helped, can I get Brainliest? Competing against a friend. Thanks!)</em>
Answer:
Because Democritus or Liucipius cannot demonstrate or proof their ideas as they did not have any equipment or any research to prove the existence of atoms.
Explanation:
John Dalton, Democritus and Leucipius are some of the greatest scientist and scholars of the past.
Democritus originally proposed or gave the idea of the of the composition of the matter of indivisible and tiny particles. John Dalton is credited for the beginning of the modern atomic theory.
Democritus believed that a matter is made up of atoms that can move about empty spaces. They are small, indestructible, solid, indivisible and of different shapes and sizes. Democritus proposed his idea at that time as there were no scientific advancement or instruments to prove his ideas about atoms.
Later on when science and scientific processes were advanced, Dalton was able to prove and proceed on the atomic model theory.
Democritus cannot prove his ideas as there were no instruments or advance scientific processes and so people felt his ideas as illogical. His proposals were based on his ideas.