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3 years ago

why is Dalton credited with proposing the first atomic theory if Democrritus was talking about atoms 2,200 years ealier

1 answer:

7 0

Answer: Why is Dalton credited with proposing the first atomic theory if Democritus was talking about atoms almost 2,200 years earlier? because

- Democritus' ideas were not supported by evidence.

- Dalton's theory was the first scientific theory because it relied on scientific investigative processes.

- Dalton's theory was supported by evidence and repeated investigation.

Explanation:

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The bridge over the river has a weight limit of 12.65 tons to cross it. The truck weighs 10.89 tons. How many tons is the truck

Delvig [45]

Answer:

It is 1.76 tons under the weight limit.

Explanation:

12.65

-10.89

= 1.76

3 0

3 years ago

12 = 3X X = <br> 7X = 57 X = <br> 11X = 27.7 X =

dybincka [34]

Answer:
1. $x=4$
2. $x=\frac{57}{7}$
3. $x=\frac{27.7}{11}$

Explanation:

Given the following questions:

$12=3x$
$7x=57$
$11x=27.7$

In order to find the answers to these questions, we have to recognize that in order to isolate the variable we need to divide on both sides.

Question one:
$12=3x$
$\frac{3x}{3} =\div3$
$12\div3=4$
$x=4$

Question two:
$7x=57$
$\frac{7x}{7} =\div7$
$57\div7=8.14285714=\frac{57}{7}$
$x=\frac{57}{7}$

Question three:
$11x=27.7$
$\frac{11x}{11} \div11$
$27.7\div11=2.51818182=\frac{27.7}{11}$
$x=\frac{27.7}{11}$

Hope this helps.

3 0

2 years ago

What is the term for the limited recyclable life of certain materials? o single-stream recycling o closed-loop recycling O dual-

Orlov [11]

Answer:

There are three main types of recycling: primary, secondary, and tertiary.Single-stream recycling is a system in which all recyclables, including newspaper, cardboard, plastic, aluminum, junk mail, etc., are placed in a single bin or cart for recycling. ... While collections costs are lower with a single stream system, processing costs are much higher.

Explanation:

Hope it helps u

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4 0

3 years ago

A mixture of sodium chloride (salt) and water is heated until only a

mojhsa [17]

Answer:

B.evaporation hope it is helpful

Explanation:

it is evaporation because it is bwing heated

4 0

2 years ago

Acids naturally present in food are safe to eat because they usually are

tangare [24]

A.Weak

B.concentrated

C.dilute

D.strong

Answer: A - Weak

7 0

3 years ago

Read 2 more answers