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IceJOKER [234]
3 years ago
9

Which of these is a physical property?

Chemistry
1 answer:
Step2247 [10]3 years ago
6 0

C) The boiling point of water is 100 degrees C is a physical property.

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A block of material has a volume of 50 cubic centimeters, and a mass of 1,000 grams; what is that object's density?
zhannawk [14.2K]

Answer:

Density = 20\ g/cm^3

Explanation:

Given that,

Mass of the object, m = 1000 g

Volume of the block, V = 50 cm³

We need to find the density of the object. Density is equal to mass per unit volume.

d = m/V

d=\dfrac{1000\ g}{50\ cm^3}\\\\=20\ g/cm^3

So, the density of the object is 20\ g/cm^3.

8 0
3 years ago
How many moles of nitrogen dioxide are required to produce 3.56 moles of nitric acid?
alekssr [168]
Considering the reaction:
3NO₂ + H₂O → 2HNO₃ + NO

To produce 3.56 moles of nitric acid, we require:
3.56 x 3/2 moles of NO₂
Moles of NO₂ = 5.34 moles of NO₂
8 0
3 years ago
How many hybrid orbitals do we use to describe each molecule c2h5no (4 c−h bonds and one o−h) key?
yarga [219]

Answer:

see attached

Explanation:

6 0
4 years ago
What is a Chemical Properties and Physical Properties? Please tell me the deffinition of them both.
Pavlova-9 [17]

Answer:

All properties of matter are either physical or chemical properties and physical properties are either intensive or extensive. ... Physical properties can be measured without changing a substance's chemical identity. Chemical properties can be measured only by changing a substance's chemical identity.

Explanation:

3 0
2 years ago
3. Suppose a student determined the empirical formula of the compound to be K3[Fe(C2O4)3] 2H2O, rather than the correct formula
yuradex [85]

Answer:

Explanation:

When determining empirical formulas of hydrates we have to find the mass of water which left the hydrate when heating The sample. This amount of water calculated will provide us with the correct ratio of moles water / moles anhydrate since moles water > moles anhydrate. The mistake might have been done while determining the water that left the sample so then we see and impropre result in ratios.

8 0
3 years ago
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