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Svetlanka [38]
4 years ago
13

Which statement describes a physical property of aluminum? A. it reacts with strong acids B. it can be reshaped by a force C. it

ignites at high temperatures D. it can combine with oxygen
Chemistry
2 answers:
spin [16.1K]4 years ago
8 0
B. it can be reshaped by a force
zzz [600]4 years ago
5 0
The answer would be B. A physical property is a property that can be observed without changing the substance’s chemical makeup, while chemical properties can only be observed if a chemical reaction is taking place.
You might be interested in
Organisms can either be made of one cell or made of more than one cell
Alika [10]

Answer:

The statement is true.

Explanation:

Organisms can be unicellular (made up of one cell) or multicellular (consisting of more than one cell).

I hope this helps in any way :)

4 0
3 years ago
5/10
Marianna [84]

Answer: 0.082 atm L k^-1 mole^-1

Explanation:

Given that:

Volume of gas (V) = 62.0 L

Temperature of gas (T) = 100°C

Convert 100°C to Kelvin by adding 273

(100°C + 273 = 373K)

Pressure of gas (P) = 250 kPa

[Convert pressure in kilopascal to atmospheres

101.325 kPa = 1 atm

250 kPa = 250/101.325 = 2.467 atm]

Number of moles (n) = 5.00 moles

Gas constant (R) = ?

To get the gas constant, apply the formula for ideal gas equation

pV = nRT

2.467 atm x 62.0L = 5.00 moles x R x 373K

152.954 atm•L = 1865 K•mole x R

To get the value of R, divide both sides by 1865 K•mole

152.954 atm•L / 1865 K•mole = 1865 K•mole•R / 1865 K•mole

0.082 atm•L•K^-1•mole^-1 = R

Thus, the value of gas constant is 0.082 atm L k^-1 mole^-1

3 0
3 years ago
Read 2 more answers
Contrast the structure of table salt and table sugar
nydimaria [60]
Table salt = ionically bonded molecule, sodium transfers one valence electron to chloride, NaCl

Table sugar = covalently bonded molecule

Sorry, that’s all I know.
4 0
3 years ago
How many moles of potassium chlorate are needed to produce 5.25 moles of oxygen
serg [7]
2KCIO3=2KCL+302
Hope you enjoy :)
8 0
3 years ago
if the solubility of a gas is 7.5 g/L at 404 pressure, what is the solubility of the gas when the pressure is 202 kPa?
shutvik [7]
<span>henry's law :

S</span>₁  / P₁ = x / P₂

7.5 / 404 = x / 202

x = 7.5 * 202 / 404

x = 1515 / 404

x = 3.75 g/L

hope this helps!
7 0
3 years ago
Read 2 more answers
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