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
AysviL [449]
3 years ago
7

Which mineral above would be the most difficult to scratch?

Chemistry
2 answers:
juin [17]3 years ago
6 0
Calcite is most difficult to scratch.
snow_tiger [21]3 years ago
3 0
What are the choices
You might be interested in
Consider the reaction h2(g) + cl2(g) ⇀↽ 2 hcl(g), which is exothermic as written. what would be the effect on the equilibrium po
kupik [55]
I think the effect of increasing temperature would be; the equilbrium will shift back wards. Increase in temperature favors backward reaction since the forward reaction is exothermic and the backward reaction is endothermic. Therefore, the equilibrium will shift back wards, and there will be more reactants (H2 and Cl2) compared to the products
3 0
3 years ago
Read 2 more answers
The sun is 150 kilometers from earth.if you wanted to explain to friend how far is what would you say
jasenka [17]

Answer:

150 times 1000 is how many meters it is away from earth because kilo means 1000

Explanation:

easy metric conversions

5 0
3 years ago
Chemical formula for Potassium Hydrogen Nitrate
My name is Ann [436]

Answer:

KNO3

Explanation:

8 0
3 years ago
When a scientific investigation runs for several years, which is most likely true?
Bingel [31]

Answer:

1. Many different hypotheses will be tested.

Explanation:

Scientists test every hypothesis they make for their investigation, before moving onto bigger conclusions.

4 0
3 years ago
Read 2 more answers
What volume (in liters) does 3.91 moles of nitrogen gas at 5.35 atm and 323 K occupy
daser333 [38]
Moles   =  n  = 3.91 mol

                  Pressure  =  P  =  5.35 atm

                  Temperature  =  T  =  323 K

                  Volume  =  V  =  ?

Formula used: Ideal Gas Equation is used,

                                        P V  = n R  T
Solving for V,
                                           V  =  n R T / P
Putting Values,
                           V  =  (3.91 mol × 0.0825 atm.L.mol⁻¹.K⁻¹ × 323 K) ÷ 5.35 atm

                         V  =  19.36 L

5 0
3 years ago
Other questions:
  • What are chemical properties of ionic compounds
    15·1 answer
  • Select the correct answer.
    11·1 answer
  • Ask 3 questions that will help you better understand the coronavirus
    12·1 answer
  • Water can be made to boil at 105 degrees Celsius instead of 100 degrees Celsius by
    8·1 answer
  • For the following reaction, 4.77 grams of carbon (graphite) are allowed to react with 16.4 grams of oxygen gas.
    14·1 answer
  • What mass of aluminum nitrate do you need to prepare 3.58L of a 1.77M Solution?<br>​
    14·1 answer
  • What is the mass number of the atom shown?<br> a. 11<br> b. 18<br> d. 20<br> C. 19
    14·2 answers
  • Story that ends with I suddenly wake up and realize that it was a dream​
    12·1 answer
  • What is the main product of cellular<br> respiration?
    7·2 answers
  • What minimum temperature is needed to dissolve 60 grams of NH4Cl in 100 g H2O?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!