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Crazy boy [7]
3 years ago
7

Which heats up the fastest? treated glass, aluminum, stainless steel, or copper?

Chemistry
1 answer:
GrogVix [38]3 years ago
8 0

Answer:

stainless steel

Explanation:

stainless steel would heat up fast because it is made of metal

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Calcium and bromine have formed a bond. Leading up to this, calcium gave up electrons. It was a(n) ____.
Ugo [173]

<u><em>Answer:</em></u>

It was a positive ion.

<u><em>Explanation</em></u>

In CaBr, ionic bond is present. When one of the atom loses electrons and gets positive charges and other atom gains electrons and become negative. As a result of positive and nagative charges , a ionic bond formed.

As in this case, Ca loses electrons and become positive ion while on the other hand bromide gets the electrons and become negative ion.

<em>Note:</em>

Electropositive atoms always loose electrons Like Ca while electronegative atoms always gain elelctrons like Br.

5 0
4 years ago
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Which term represents a type of nuclear reaction?
wel
D)natural transmutation
7 0
3 years ago
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How might a theory relate to a model
oksian1 [2.3K]
These are related but can be independent, because it is possible to, the theories are studied in mathematical logic, especially in model theory
8 0
4 years ago
Calculate the mass of 2.00 X 1020 molecules of SO3.
MakcuM [25]

Answer:

0.027g

Explanation:

From Avogadro's hypothesis, 1mole of any substance contains 6.02x10^23 molecules.

From the above, it means that 1mole of SO3 also contains 6.02x10^23 molecules.

1mole of SO3 = 32 + (16x3) = 32 + 48 = 80g

If 1 mole (80g) of SO3 contains 6.02x10^23 molecules,

Then Xg of SO3 will contain 2x10^20 molecules i.e

Xg of SO3 = (80x2x10^20)/6.02x10^23 = 0.027g

8 0
3 years ago
6. A student was conducting an experiment to find the volume of a spherical metal object. He placed it in the graduated cylinder
Sergio039 [100]
<h3>Answer:</h3>

                No, it wouldn't affect the volume.

<h3>Explanation:</h3>

                         Let us suppose the masses of metal object before and after shape change to be,

                              Mass before shape change  =  2.5 g

                                Mass after shape change  =  2.5 g

As the shape change has not affected on the mass so in both states it will remain 2.5 g.

Secondly, as density will remain same for both states because it is intensive property of a particular matter and is considered a characteristic property. Hence, it will also remain constant before and after shape change. Assume the density to be 2 g.mL⁻¹.

Therefore the volume calculated will be,

Before shape change:

                                   Volume-1  =  Density × Mass

                                   Volume-1  =  2 g.mL⁻¹ × 2.5 g

                                   Volume-1  =  5 mL

After shape change:

                                   Volume-2  =  Density × Mass

                                   Volume-2  =  2 g.mL⁻¹ × 2.5 g

                                   Volume-2  =  5 mL

<h3>Conclusion:</h3>

                  The volume is not affected by changing shape. Hence, after shape change the object will be having a volume of 5 mL.

8 0
3 years ago
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