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Alja [10]
3 years ago
13

How do you know when a substance is boiling?

Chemistry
2 answers:
IrinaVladis [17]3 years ago
4 0
When the substance is creating gases. Sometimes when it’s bubbling up
Lunna [17]3 years ago
3 0

When you are boiling eggs for example the pot with water is hot and you can see bubbles in the pot. This is called boiling water. When the eggs are in there they are boiling to make hard boiled eggs. Depending on how long it is in there determines the outcome. On the surface of the egg shell you may also notice little bubbles all around the shell which means it is boiling.

Hope this helps! :3

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A 10 gram sample of iron reacts with oxygen to form 18.2 grams of ferric oxide. How many grams of oxygen reacted?
RoseWind [281]

Answer:

\boxed {\boxed {\sf 8.2 \ grams}}

Explanation:

According to the Law of Conservation of Mass, the mass of the products must equal the mass of the reactants.

  • mass products = mass reactants

In this problem, the reaction is:

iron + oxygen = ferric \ oxygen

  • The reactants are iron and oxygen. We know the mass of the iron sample is 10 grams.
  • The product is ferric oxide. The mass of the ferric oxide sample is 18.2 grams.

10 \ g + oxygen=18.2 \ g

We want to find how many grams of oxygen reacted. We have to get the oxygen by itself. 10 is being added to oxygen. The inverse of addition is subtraction. Subtract 10 from both sides of the equation.

10 \ g - 10 \ g+ oxygen = 18.2 \ g - 10 \ g

oxygen= 18.2 \ g - 10 \ g

oxygen= 8.2 \ g \\

<u>8.2 grams of oxygen </u>reacted with 10 grams of iron to form 18.2 grams of ferric oxide.

8 0
2 years ago
Convert 15.9mm to its equivalent measurement in km
STALIN [3.7K]

Answer:

0.0000159

Explanation:

Divide 15.9 by 1000000, because 1 kilometer equals 1000000 millimeters.

6 0
3 years ago
Which phrase best defines radiant energy? (a)mechanical waves that require a medium to travel through
slava [35]

Answer:

I think is b

Explanation:

if im wrong, heres some information:

mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium.[1] While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position. Mechanical waves transport energy. This energy propagates in the same direction as the wave. Any kind of wave (mechanical or electromagnetic) has a certain energy. Mechanical waves can be produced only in media which possess elasticity and inertia.

3 0
3 years ago
Read 2 more answers
explain the importance of water on the following a.) domestic use, b.) biological use, c.) industrial use​
tankabanditka [31]

Answer:

To make it easier for you , if you search up " why is water important to domestic use " and replace domestic use with biological use and industrial use, the answers will pop up .

Explanation:

5 0
3 years ago
In what states of matter can you find fluids?
KonstantinChe [14]

Answer:

The Answer is a liquid.

5 0
2 years ago
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