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3 years ago

Question 6 of 10

1 answer:

7 0

The answer is B. Molecules move more quickly as temperature increases.

When Allmond molecular motion stops, that is considered absolute zero. That does not mean that it cannot get colder, disapproving A.

C is just wrong.

D says when molecular motion stops the temperature STARTS to decrease, it was decreasing before it got there.

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A student who is studying atomic reactions creates the following Venn diagram.

Lady bird [3.3K]

A. reaction A: chemical; reaction B: nuclear

Answer:

Solution given:

Circle 2: Reaction B

-Involves neutrons

-Happens inside atomic nucleus

-Releases relatively large amounts of energy

It happens on normal chemical reaction.

Circle 2: Reaction B

-Involves neutrons

-Happens inside atomic nucleus

-Releases relatively large amounts of energy

It happens on nuclear reaction.

5 0

3 years ago

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a mixture of gases contains He (g) and Ne (g). the total pressure of the atmosphere in the container is 600 mmHg and the partial

aliina [53]

Answer:

161 mmHg

Explanation:

Ptotal= PHe +PNe

PHe= Ptotal-PNe

PHe= (600 mm Hg)-(439 mmHg)

PHe=161 mmHg

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3 years ago

7. A cyclist starting from rest accelerates at a rate of 6 m/s until she reaches 30 m/s. How long

Hunter-Best [27]

Answer:

Explanation:

The given values are:

a= 6m/s²

u= 0 m/s

v = 30 m/s

t= ?

The formula is :

$a=\frac{v-u}{t}$

thus,

$t=\frac{v-u}{a}\\t=\frac{30-0}{6}\\t= 5 seconds$

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3 years ago

A change that produces one or more new substances is called _____.

Vesnalui [34]

Answer:

the answer is c

Explanation:

a chemical change mean it changes it for ever and a physical change mean it can be changed back and evaporation means it turns solid water in to gas hope this helps

7 0

3 years ago

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Nicotine, a component of tobacco, is composed of c, h, and n. A 2.625-mg sample of nicotine was combusted, producing 7.1210 mg o

Vikki [24]

The mass sample of nicotine combusted = 2.625 mg (given)

Mass of $CO_2$ produced = 7.1210 mg (given)