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ipn [44]
3 years ago
6

Which of these observations is not an example of a physical property of matter? A. The density of sea water is measured to be 1.

027 g/cm3.
B. Gold melts at 1064 ºC.
C. There are usually at least three different minerals in a piece of granite.
D. Your mother's best silver tarnishes.
Chemistry
2 answers:
Black_prince [1.1K]3 years ago
7 0

Answer:

D. Your mother's best silver tarnishes.

Explanation:

Hello,

In this case, the answer is: D. Your mother's best silver tarnishes, since tarnishing is a process carried out due to the effect of an external condition (aging, wearing out and others), not a property. Properties are actually descripted on options A, B and C as they describe the material in terms of its nature.

Best regards.

MAVERICK [17]3 years ago
4 0
D... i feel bad that you didnt understand this...
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Wood has a density of 0.531 g/cm3. What is the volume of 44 grams of wood?
Sunny_sXe [5.5K]

Answer:

<h3>The answer is 82.86 cm³</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass of wood = 44 g

density = 0.531 g/cm³

It's volume is

volume =  \frac{44}{0.531}  \\  = 82.86252354...

We have the final answer as

<h3>82.86 cm³</h3>

Hope this helps you

3 0
3 years ago
How many moles of gas would occupy 22.4 L at 273K in one arm?
andrew-mc [135]

Answer:

1 mol

Explanation:

Using the general gas law equation as follows:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the provided information in the question;

V = 22.4L

T = 273K

P = 1 atm

R = 0.0821 Latm/molK

n = ?

Using PV = nRT

n = PV/RT

n = (1 × 22.4) ÷ (0.0821 × 273)

n = 22.4 ÷ 22.4

n = 1mol

4 0
3 years ago
Deanna stirred a teaspoon of sugar into a glass of warm water. The sugar completely dissolved in the water. Check any statement
Sergeeva-Olga [200]

Answer:

D

Explanation:

From my experience this is what happens when I put sugar in warm water glass

4 0
3 years ago
Read 2 more answers
How many protons are in nitrogen-15?
valentina_108 [34]
7 protons. As well as in nitrogen-14. The difference between nitrogen-14 and nitrogen-15 is in a number of neutrons. In nitrogen-14 - 7 neutrons, in nitrogen-15 - 8 neutrons. 
4 0
3 years ago
you add 5.6g of iron to 23.60ml if water and observe that the volume of iron and water together is 24.31 ml. calculate the densi
Papessa [141]

Answer:

8g/mL

Explanation:

Density = Mass/Volume

There is 5.6g of Iron added to the water of 23.60mL and it rose by 0.7mL.

Density = 5.6g/0.7mL of Iron.

8 0
4 years ago
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