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3 years ago

What is a main reason why the scientific model of atoms is considered a theory rather than a law?

Chemistry

1 answer:

BigorU [14]3 years ago

8 0

Answer:

Over time it has been changes

Explanation:

A law is something that is in nature and predicts what the result will be without having to explain

A theory is always changing when new information is provided and supports what is being tested.

So this is why it is describes as a theory instead of a law.

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Which of the drawings represents the gas after the temperature is lowered from 350 k to 80 k? the boiling point of the gas is 90

jeka57 [31]

Provide with image. Thank you

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3 years ago

What bias conditions must be present for the normal operation of a transistor amplifier? A. The emitter-base junction must be fo

natali 33 [55]

The answer would be A. which says the emitter- base junction must be forward biased, and the collector- base junction must be reverse biased.

8 0

3 years ago

A reaction mixture initially contains 0.86 atm NO and 0.86 atm SO3. Determine the equilibrium pressure of NO2 if Kp for the reac

dlinn [17]

Explanation:

Reaction equation for this reaction is as follows.

$NO(g) + SO_{3}(g) \rightarrow NO_{2}(g) + SO_{2}(g)$

It is given that $K_{p}$ = 0.0118.

According to the ICE table,

$NO(g) + SO_{3}(g) \rightarrow NO_{2}(g) + SO_{2}(g)$

Initial: 0.86 0.86 0 0

Change: -x -x +x +x

Equilibrium: 0.86 - x 0.86 - x x x

Hence, value of $K_{p}$ will be calculated as follows.

$K_{p} = \frac{P_{NO_{2}} \times P_{SO_{3}}}{P_{NO} \times P_{SO_{3}}}$

0.0118 = $\frac{x \times x}{(0.86 - x)^{2}}$

x = 0.084 atm

Thus, we can conclude that $P_{NO_{2}}$ is 0.084 atm.

4 0

4 years ago

A student is studying a sample of neon in a container with a moveable piston (this means the container can change in size). If t

Maurinko [17]

The new pressure of the gas would be 505.58 torr

<h3>Boyle's law</h3>

According to Boyle's law, the pressure of a gas is inversely proportional to its volume, provided that the temperature is constant.

This can be mathematically represented as: P1V1 = P2V2

In this case, P1 = 759.4 torr, P2 is what we are looking for, V1 = 97.6 mL, and V2 = 146.6 mL

Hence, P2 = P1V1/V2 = 759.4x97.6/146.6 = 505.58 torr

More on Boyle's law can be found here: brainly.com/question/1437490

#SPJ1

8 0

2 years ago

(a) 9 cm + 2.8 cm = 11.8

Elden [556K]

<span>For addition and subtraction you round to decimal places.
Round the number so that it has the same number of decimal places as the number in your data that has the least number of decimal places.

9 cm + 2.8 cm = 11.8 cm
the 9 has no decimal places so
= 12 cm
(this is rounded to 0 decimal places.)
(It has 2 sig figs) </span>

3 0

3 years ago