1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alex
3 years ago
13

The hardest known mineral is _____. topaz talc diamond graphite

Chemistry
2 answers:
klemol [59]3 years ago
8 0
Diamond. It can only be cut with another diamond.
erastova [34]3 years ago
5 0

Answer: Option (c) is the correct answer.

Explanation:

Moh's scale is used to detect the harness of a mineral. This scale displays harness of 10 minerals.

According to Moh's scale, the hardness of minerals given in the option are as follows:

  • Topaz = 8
  • Talc = 1
  • Diamond = 10

Graphite is not included in Moh's scale.

Thus, we can conclude that the hardest known mineral is diamond.


You might be interested in
How does temperature, pressure and surface area affect the dissolving process
larisa [96]
If I am correct, yes. As I was told in chemistry, the surface area affects the dissolving of the "sugar". If you put regular Surat in a hot cup of coffee, it will dissolve at a quick pace, but what if you put the same amount of sugar in the same amour of coffee, but the sugar was fine powder? It would dissolve even faster since it has more surface area. So temperature does affect the dissolving. Hope this helps!
8 0
3 years ago
Read 2 more answers
Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s) + N2(g) → 2Li3N(s) How many moles of lit
miss Akunina [59]

Answer:

12.5 g of Li are needed in order toproduce 0.60 moles of Li₃N

Explanation:

The reaction is:

6Li(s) + N₂(g) → 2Li₃N(s)

If nitrogen is in excess, the lithium is the limiting reactant.

Ratio is 2:6

2 moles of nitride were produced by 6 moles of Li

Then, 0.6 moles of nitride were produced by (0.6 .6)/ 2 = 1.8 moles of Li

Let's convert the moles to mass → 1.8 mol . 6.94 g/ 1mol = 12.5 g of Li

7 0
3 years ago
Read 2 more answers
Age
cupoosta [38]

Answer:

Option (2)

Explanation:

Since the amount of each sample is the same, we are looking for the metal with the greatest density, which is copper.

5 0
2 years ago
How the ph values can be used to compare the strength of hydrochloric acid and ethanoic acid?
devlian [24]
An aqueous solution of hydrozen chloride: Strongly​ corrosive acids
A colouriess punpent liquid widely used in manufacturing plastic and pharmaceutical
3 0
3 years ago
Which best describes the field of chemistry?
qaws [65]

Answer:

Fundamentally, chemistry is the study of matter and change. The way that chemists study matter and change and the types of systems that are studied varies dramatically. Traditionally, chemistry has been broken into five main subdisciplines: Organic, Analytical, Physical, Inorganic, and Biochemistry.

hope this helps :)

5 0
3 years ago
Other questions:
  • A sealed can with an internal pressure of 721 mmHg at
    10·1 answer
  • What causes atoms to form covalent bonds? In a covalent bond, two atoms are held together by the attraction between... The numbe
    11·2 answers
  • Which member of each pair is the stronger base? part a ethylamine or aniline ethylamine or aniline ethylamine aniline request an
    14·1 answer
  • This dipeptide is designated as: there is a structure for h3nchcnhchco with ch2oh group attached to the first (from left to righ
    14·1 answer
  • Please help me !!! im failing :(
    12·1 answer
  • What is Orthocoronavirinae?
    11·1 answer
  • If two oceanic plates move towards each other at a convergent boundary, then_____ may occur.
    15·2 answers
  • HELP ME ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • HELP!!! A nuclear engineer is designing a nuclear reactor for a new power plant. The reactor core will have an operating tempera
    13·1 answer
  • Lines in one spectral series can overlap lines in another.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!