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valentina_108 [34]
2 years ago
9

Compare the type of change that occurs when a substance melts and when a substance is set on fire. Use complete sentences to jus

tify the type of change that occurs.
Chemistry
2 answers:
Amiraneli [1.4K]2 years ago
8 0

When a substance melts it has changed from a solid to a liquid state while when a substance is set on fire is changes from liquid to gaseous state as it boils.

<h3>What is change of state?</h3>

Change of state of matter is the transformation of a substance from one phase of matter to another.

When a substance melts it has changed from a solid to a liquid state while when a substance is set on fire is changes from liquid to gaseous state as it boils.

Learn more about matter here:

brainly.com/question/3998772

#SPJ1

kkurt [141]2 years ago
4 0

The substance changes from a solid to a liquid state when it melts. while It changes from liquid to gaseous state when it it is set on fire.

<h3>What is change of state?</h3>

Change of state of matter is the transformation of a substance from one state of matter to other.

When a substance melts it has changed from a solid to a liquid state while when a substance is set on fire is changes from liquid to gaseous state as it boils.

Learn more about matter here;

brainly.com/question/3998772

#SPJ1

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If Tins’s mass number is 119 and it’s atomic number is 50, how many neutrons are in the nucleus of an atom of tin?
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Answer:69

Explanation:cause ima boss

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3 years ago
A 10g sample of Fe reacts with O to form 18.2g of FeO. How many grams of O reacted?
faust18 [17]

Answer:

Mass of O = 8.2 gram

Explanation:

Given:

Mass of Fe = 10 g

Total volume = 18.2 g

Find:

Mass of O

Computation:

Using Conservation of total mass

Total volume = Mass of O + Mass of Fe

18.2 = Mass of O + 10

Mass of O = 8.2 gram

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3 years ago
Which of the following objects have kinetic energy? ​
jasenka [17]
A bee a bike a water fall
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3 years ago
An area experiences lack of moisture and precipitation. It also experiences high temperature and winds. Which severe weather eve
ddd [48]

Answer:

Drought

Explanation:

It would get really dry because no moisture and the lakes would dry up bc of lack of water

6 0
3 years ago
Hydrogen-3 has a half-life of 12.32 years. A sample of H-3 weighing 3.02 grams is left for 15.0 years. What will the final weigh
kaheart [24]

Answer:

\large \boxed{\text{1.38 g}}

Explanation:

Two important formulas in radioactive decay are

(1) \qquad t_{\frac{1}{2}} = \dfrac{\ln 2}{k}\\\\(2) \qquad \ln \left(\dfrac{N_{0}}{N}\right) = kt

1. Calculate the decay constant k

\begin{array}{rcl}t_{\frac{1}{2}} &=& \dfrac{\ln 2}{k}\\\\\text{12.32 yr} &= &\dfrac{\ln 2}{k}\\\\k & = & \dfrac{\ln 2}{\text{12.32 yr}}\\\\& = & \text{0.056 26 yr}^{-1}\\\end{array}

2. Calculate the mass remaining

\begin{array}{rcl}\ln \left(\dfrac{A_{0}}{A}\right) &= &kt \\\\\ln \left(\dfrac{\text{3.20 g}}{A}\right) &= &\text{0.056 26 yr}^{-1}\times \text{15 yr} \\\\\ln \left(\dfrac{\text{3.20 g}}{A}\right) &= &0.8439 \\\\\dfrac{\text{3.20 g}}{A} &= &e^{0.8439} \\\\\dfrac{\text{3.20 g}}{A}&= &2.325 \\\\A &= &\dfrac{\text{3.20 g}}{2.325}\\\\&= & \textbf{1.38 g}\\\end{array}\\\text{The final mass of the sample will be $\large \boxed{\textbf{1.38 g}}$}

8 0
3 years ago
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