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Y_Kistochka [10]
3 years ago
8

While watching tv in your room one nigh, you decide to have some Oreos and a glass of milk. there were only 3 Oreos and science

you pored a huge glass of milk you couldn't finish it all. Instead of taking it to the kitchen, you put the glass of milk under your bed. Your mom discovered it three months later when she was cleaning your room. The cup no longer had a white liquid...it now contained a semi-solid layer of cheese like stuff floating on top of a clear liquid. Did a chemical reaction take place, yes or no? what evidence or lack of evidence do you have to support your answer?
Chemistry
1 answer:
sveta [45]3 years ago
8 0

Answer:

yes it did.

Explanation:

the product must have produced a smell therefore it created a gas. this means it was a chemical reaction

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Total atoms of each element in<br>5CaCl2+3Ca(ClO4)2+4Ca(OH)2​
Monica [59]

Answer:

Element   Symbol   Atomic Mass   # of Atoms  Mass Percent

Chlorine              Cl       35.453                             2        29.670%

Calcium                Ca     40.078                      1         16.770%

Oxygen                 O   15.9994                             8            53.559%                              

Explanation:

4 0
3 years ago
CN- is a Bronsted - Lowry base. What will this substance form when it accepts a proton?
sergejj [24]
It will form HCN Hydrogen Cyanide.
8 0
3 years ago
C2H2 + 2H2 → C2H6<br> How many moles of hydrogen are needed to produce 13.78 mol of ethane?
Scilla [17]

Answer:

27.56 moles

Explanation:

8 0
4 years ago
What happens to the average kinetic energy of the particles in a sample of matter as the temperature of the sample is increased?
antiseptic1488 [7]

Answer:

  • <em>As the temperature of a sample of matter is increased, the average kinetic energy of the particles in the sample </em><u>increase</u><em>.</em>

Explanation:

The <em>temperature</em> of a substance is the measure of the <em>average kinetic energy </em>of its partilces.

The temperature, i.e. how hot or cold is a substance, is the result of the collisions of the particles (atoms or molecules) of matter.

The kinetic theory of gases states that, if the temperature is the same, the average kinetic energy of any gas is the same, regardless the gas and other conditions.

This equation expresses it:

  • Avg KE = (3/2) (R / N) T

Where Avg KE is the average kinetic energy, R is the universal constant of gases, N is Avogadro's constnat, and T is the temperature measure in absolute scale (Kelvin).

As you see, in that equation Avg KE is propotional to T, which means that as the temperature is increased, the average kinetic energy increases.

7 0
3 years ago
The substances below are listed by increasing specific heat capacity value. Starting at 30.0 °C, they each absorb 100 kJ of ther
JulijaS [17]

The heat change is related to specific heat as

Heat change = mass of substance X specific heat X change in temperature

So if we are considering same amount of substance

and we are starting with the same temperature

the change in temperature will be inversely proportional to the specific heat

higher the specific heat lower the temperature change

Thus the change in temperature will be least for the substance with highest specific heat.

Answer: Hydrogen

4 0
3 years ago
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