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
seropon [69]
4 years ago
15

What is the hardest mineral listed here? A. quartz B. calcite C. gypsum D. corundum

Chemistry
2 answers:
krok68 [10]4 years ago
4 0

Answer:D. corundum

Explanation:

Corundum is a hard mineral. It is tough and stable in nature. It is the hardest mineral after diamond. It remains unaffected by the treatment of acids and environmental agents. Translucent brown color corundum is commonly found in nature.

a_sh-v [17]4 years ago
3 0
The answer would be D. The only minerals harder than corundum is diamond.
You might be interested in
I don’t understand the equations
inna [77]
So the equation is balanced, meaning they have the smallest amounts of each element in the reactants to create the products.

So, 2 moles of H2S (the coefficient) contributes to 2 moles Ag2S, which is why the ratio is 2:2.

I hope that made sense.
6 0
3 years ago
For the chemical reaction 2HBr(aq)+Ba(OH)2(aq)⟶2H2O(l)+BaBr2(aq) write the net ionic equation, including the phases.
Crazy boy [7]

Answer:

2H⁺(aq) + 2OH⁻(aq)  --> 2H2O(l)

Explanation:

2HBr(aq)+Ba(OH)2(aq)⟶2H2O(l)+BaBr2(aq)

We break the compounds into ions. Only compounds in the aqueous form can be turned into ions.

The ionic equation is given as;

2H⁺(aq)  +  2Br⁻(aq)  + Ba²⁺(aq) + 2OH⁻(aq)   --> 2H2O(l)  +  Ba²⁺(aq)  + 2Br⁻(aq)

Upon eliminating the spectator ions; The net equation is given as;

2H⁺(aq) + 2OH⁻(aq)  --> 2H2O(l)

8 0
3 years ago
Name an allotrope of carbon which has 60 carbon atoms
Annette [7]
Buckminster fullerene C60
5 0
3 years ago
The chemical properties of calcium and strontium are similar because both
Feliz [49]

Answer:

Number of valence electrons

Explanation:

8 0
3 years ago
ALUMINUM HAS THREE OUTER ELECTRONS Will the element share, gain, or lose electrons when bonding with another element? explain​
bearhunter [10]

Answer:

aluminum will lose 3 electrons.

Explanation:

to be stable and losing 3 is easier than gaining 5.

anddd its a metal. :)

7 0
3 years ago
Other questions:
  • For the reaction A + B − ⇀ ↽ − C + D A+B↽−−⇀C+D , assume that the standard change in free energy has a positive value. Changing
    5·2 answers
  • You place a balloon in a closed chamber at STP. When the balloon doubles in size, what happens to the chamber pressure? A.) The
    12·2 answers
  • An object with a density of 3.7kg/m^3 has a mass of 2.5g. What's the volume in mL?
    15·1 answer
  • I need some help with chemistry. Let me know if you are good at it!
    7·1 answer
  • How many electrons should Nitrogen (N) have around its Lewis dot model?
    11·1 answer
  • The setup in the diagram is left outside during the day and night . Bubbles are continuously produced regardless of the presence
    7·1 answer
  • In an experiment, mixing baking soda and vinegar produced a combination of salty water and carbon dioxide shown in the following
    13·2 answers
  • Can someone help me with this I've been stuck on it for a few days​
    12·1 answer
  • Why less electro negative elements are taken as central atom​
    15·1 answer
  • 2 C4H10+13 O2 = 8 CO2+10 H2O
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!