A geologist was looking at a newmineral they found. The mineral
sample was gray, non-metallic, had
density of 3.8 g/mL, and a volume
of 48.3 mL
Of the observed properties listed
below, which is considered to be an
extensive property?
A Gray
B Metallic
C Density
D Volume
Answers
Answer:
D. Volume
Explanation:
Properties mentioned in the question;
colour = gray
Nonmetallic
Density = 3.8 g/mL
Volume = 48.3 mL
Of the mentioned, which is extensive ?
Extensive properties are those properties that are proportional to the amount of substance present.
The correct option is D. Volume. The other properties do not change with increasing or decreasing amount of the mineral
Final answer:
Volume is considered to be an extensive property.
Explanation:
The extensive property out of the observed properties listed is volume. An extensive property is one that depends on the amount of a substance. In this case, the volume of the mineral sample is directly proportional to the amount of the sample, so it is considered an extensive property.
Learn more about Extensive property here:
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Related Questions
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If the temperature of air increased, how would it affect the rate of condensation of water vapor
What two forces act in the nucleus to create a 'nuclear tug of war'?
Which of the following alcohols is dehydrated most easily with conc. H²SO⁴? a. p-O²NC⁶H⁴CH(OH)CH³ b. p-C1C⁶H⁴CH(OH)CH³ c. p-CH³OC⁶H⁴CH(OH)CH³ d. C³H⁵CH(OH)CH³
b. fulcrum
c. mechanical advantage
d. resistance force
Answers
Answer:
Mechanical Advantage
Explanation:
Answers
Answer:
potassium and sodium
Explanation:
There are many metals that can react with aluminium nitrate in a displacement reaction. these metals are higher than aluminium in the electrochemical series of elements where metals are arranged based on their reactivity and therefore tend to displace aluminium in any chemical reaction. However the most reactive of these metals are potassium(K) and sodium(Na). Others are calcium(Ca), magnesium(Mg), lithium(Li), strontium (Sr).
18°
23°
45°
60°
Answers
Answers
To calculate volume you multiply the length, width, and height of the object (v=lwh)
In this example, we get a product of 28
So 352/28 is 12.57142.... Round to the nearest decimal place indicated in your instructions or keep as is
Answer:
12.58 g/cm³
Explanation:
V = 7×4×1 = 28cm³
ρ = m/V = 352/28 ≈ 12.58 g/cm³
Answers
Answer: ratio is 10⁻⁵
Explanation:
From Acid-dissociation equilibrium constant, HA is given thus,
HA + H₂O ⇄ H₃O⁺ + A⁻
equilibrium constant, Ka = [H₃O⁺] [A⁻] / [HA]
[H₃O⁺] = Ka [HA] / [A⁻]
from this we have that
pH = -log[H₃O⁺]
and pKa = -logKa
Applying Henderson-Hassel bach equation;
pH = pKa + log [A⁻]/[HA] ...........(1)
A⁻ rep the salt and HA rep the acid
at a given pH of 7, the pKa value of carboxylic acid COOH is 3
∴ from equation (1).
7 = 3 + log(COO⁻/COOH)
log(COO⁻/COOH) = 4
thus (COO⁻/COOH) = 10⁻⁴ ...................(2)
The ratio of alanine COOH to COO- at pH 7 is (COO⁻/COOH) = 10⁻⁴
(ii) Also considering the ratio of alanine NH2 to NH3+ at pH 7 we have;
given Pka value is 8,
therefore pH = pKa + log [salt]/[base]
7 = 8 + log (NH₂/NH₃)
(NH₂/NH₃) = 10⁻¹
thus the ratio of the concentration of the neutral amino acid species to the zwitterionic species at pH 7 is;
10⁻⁴ ˣ 10⁻¹ = 10⁻⁵
cheers i hope this helps
(2) distillation
(3) electrolysis
(4) filtration
Answers
Answer : Option 3) Electrolysis.
Explanation : In the process of electrolysis, decomposition of the chemical is done by passing the electric current from the liquid or the solution containing ions in it. This is the process where compound is broken into ions namely, cations and anions.
Rest all options does not involves chemical decomposition of the compound.
Chromatography is a technique where rates of solute and solvent are compared in a medium where the solute components move at different rates and the separation is obtained.
Distillation simply purifies the liquid or solution by heating or cooling process.
Filtration just involves removal of impurities by using a more porous material device to get purified compound.
Answer:
The correct answer is option (3).
Explanation:
Electrolysis is defined as chemical process in which decomposition is carried out by passing an electricity in a solution containing ions. For example: electrical decomposition of water gives oxygen gas and hydrogen gas.
where as chromatography, distillation and filtration are the separation techniques used to separate the compounds from the mixtures.
Hence, the correct answer is option (3).