Answer:
Their atomic theory of the elements
Step-by-step explanation:
The ancient Greeks believed that all matter consisted of four elements — earth, air, fire, and water
Everything on Earth consisted of these elements in different combinations.
Robert Boyle is best known for his famous Law — p₁V₁ = p₂V₂.
However, he was also an excellent chemist who did many experiments.
He found it was impossible to combine the four Greek elements into any substance.
Boyle found he could decompose many substances into simpler substances, but none of them was a Greek element.
He therefore rejected the Greek theory.
Almost 150 years before Dalton's atomic theory, Boyle proposed a new definition of an element:
An element is any substance that cannot be broken into a simpler substance.
17-4x = 1-4x+12-2x
17-4x = 13-6x | +4x
17 = 13-2x | -13
4 = -2x | :(-2)
-2 = x
Answer:
Step-by-step explanation:
Before number line can be drawn, there is need to find the value of x in the inequality given. Thus,
Divide both sides by 2
The number line is indicated in the attached picture.
Answer:
b
Step-by-step explanation:
83+37=129, 120÷24=5
Answer: Estimate : 1000 Exact : 942.83
Step-by-step explanation:
The estimate is 1000 because 96.8 is rounded to 100 and 9.74 is rounded to 10, so 100 times 10 is 1000. If you wanted the exact, then the exact is 942.83200, If you simplify this total, then the final answer is 942.83.
