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erma4kov [3.2K]
2 years ago
7

Matthew was cleaning his car on a very hot summer day. He left the cleaning spray he had bought, and was using, on the driveway

in the intense heat and the can exploded. Why did this happen?
Chemistry
1 answer:
Oliga [24]2 years ago
6 0

Answer: The cleaning spray might have containing alcohol.

Explanation:

Some alcohol have the tendency to give an explosive effect on heating. According to the given situation, if the cleaning fluid is containing alcohol and when it had been exposed to air, oxygen and sun heat it will become unstable by producing peroxides which can explode the can in which they have been stored. So, in the given situation, the cleaning spray containing alcohol will explode due to intense heat.

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A volume of 80.0 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. I
murzikaleks [220]

Answer:

The mass of the steel bar is 26.833 grams

Explanation:

<u>Step 1: </u>data given

ΣQ gained = ΣQ lost

Q=m*C*ΔT

with m = mass in grams

with C= specific heat capacity ( in J/(g°C))

with ΔT = change in temperature = T2-T1

Qsteel = Qwater

msteel * Csteel * (T2steel - T1steel) = mwater * Cwater * (T2water - T1water)

Mass of steel = TO BE  DETERMINED

mass of water =⇒ since 1mL = 1g : 80 mL = 80g

Csteel =0.452 J/(g °C

Cwater = 4.18 J/(g °C

initial temperature steel T1 : 2 °C

final temperature steel T2 = 21.3 °C

initial temperature water T1 =22 °C

final temperature water T2 = 21.3 °C

<u>Step 2:</u> Calculate mass of steel

msteel * Csteel * (T2steel - T1steel) = mwater * Cwater * (T2water - T1water)

msteel * 0.452 *(21.3-2) = 80 * 4.18 * (21.3-22)

msteel = (80 * 4.18 * (-0.7)) / (0.452 * 19.3)

msteel = -234.08 / 8.7236

msteel = -26.833 g

Since mass can't be negative we should take the absolute value of it = 26.833g

The mass of the steel bar is 26.833 grams

6 0
3 years ago
Which term is used to describe all the habitats around the world?
OlgaM077 [116]

Answer:

ecosystem diversity

Explanation:

hope this helped

5 0
1 year ago
Assuming that both cases describe hydrogen‑like atoms with one electron, for which case is more energy emitted or absorbed?
Nana76 [90]

Assuming that both cases describe hydrogen‑like atoms with one electron, More energy is emitted or absorbed for case 2. The correct option is D.

<h3>What is emitting of energy, by electron?</h3>

The energy of the electron decreases as it changes levels, and emission of photons happens in the atom.

With the electron moving from a higher to a lower energy level, the photon is emitted. The photon's energy is the same as the energy lost by an electron moving to a lower energy level.

Thus, the correct option is D, More energy is emitted or absorbed for case 2.

Learn more about emitting of energy

brainly.com/question/14350185

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5 0
1 year ago
What can occur in physical change ?
Alexandra [31]

Within a physical change, an element can change forms, such as going from solid to a liquid through melting. Color change can also occur during a physical change. Physical changes are very different from chemical changes. In a chemical change the element itself changes into something else within a reaction, such as combustion (burning).


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5 0
3 years ago
What three types of Protists have been discovered
frosja888 [35]

Answer:

the answer is D

Explanation:

but hope this helps

8 0
2 years ago
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