CHEMISTRY HIGH SCHOOL

Does Halite have non-metallic luster? a) Yes b) No

Answers

Answer 1
Answer:

Answer: a) Yes

Explanation:

Halite has a vitreous luster that gives it a brilliant, glassy look. A vitreous luster is a nonmetallic luster. Minerals come in many different colors and many times the same mineral can be found in a variety of shades.

Related Questions

For each of the following strong base solutions, determine [OH−],[H3O+], pH, and pOH of 1.13×10^−2 M Ba(OH)2, 1.8x10^-4 M KOH, and 5.3x10^-4 M Ca(OH)2
Keisha finds instructions for a demonstration on gas laws.1. Place a small marshmallow in a large plastic syringe. 2. Cap the syringe tightly. 3. Pull the plunger back to double the volume of gas in the syringe. Which best describes the purpose and outcome of the demonstration?
How many protons, neutrons, and electrons could an isotope of this atom contain?
Which is a characteristic of a nonelectrolyte?A. It does not dissociate or ionize in water. B. It partially dissociates or ionizes in water. C. It conducts electricity poorly. D. It conducts electricity extremely well.
Sort the following situations into chemical change or physical change:1. salt dissolves in water2. Hydrochloric acid reacts with magnesium to produce hydrogen gas3. a piece of copper is cut in half4. a sugar cube is ground up5. water is heated and changed to steam6. iron rusts7. ethyl alcohol evaporates8. ice melts9. milk sours10. sugar dissolves in water11. sodium and potassium react violently with water12. pancakes cook on a griddle13. grass grows on a lawn14. a tire is inflated with air 15. food is digested in the stomach16. water is absorbed by a paper towel17. ethyl alcohol boils at 79 egress Celsius18. paper burns19. water freezes at 0 degrees Celsius20. fireworks explode21. alka-seltzer gives off carbon dioxide when added to water22. clouds form in the sky

What is a chemical bond

Answers

an attraction between atoms that allows the formation of chemical substances that contain two or more atoms.

Answer: An intramolecular force holding 2 atoms together

Explanation:

C apex approved

When 5 grams of KCl are dissolved in 50. grams of water at 25°C, the resulting mixture can be described as(1) heterogeneous and unsaturated
(2) heterogeneous and supersaturated
(3) homogeneous and unsaturated
(4) homogeneous and supersaturated

Answers

Answer:

The correct answer is option 3, that is, homogenous and unsaturated.

Explanation:

In the given question, the mentioned mixture is homogenous as the KCl or potassium chloride has got dissolved completely, thus, the mixture is identical throughout the course, that is, one will not find any particles of KCl in it as it has got dissolved.  

The mixture can also be considered unsaturated as the mixture can still dissolve more amount of KCl in it, and will get dissolve as no precipitate formation is going to take place.  
It's a homogeneuous mixture for sure. The saturated part, I think u need more information.

Given the reaction: HC2H3O2(aq) + H2O ↔ H3O+(aq) + C2H3O2-(aq) When the reaction reaches a state of equilibrium, the concentrations of the reactants 1. are less than the concentrations of the products 2. are equal to the concentrations of the products 3. begin decreasing 4. become constant

Answers

The correct answer for the question that is being presented above is this one: "2. are equal to the concentrations of the products." Given the reaction: HC2H3O2(aq) + H2O ↔ H3O+(aq) + C2H3O2-(aq) When the reaction reaches a state of equilibrium, the concentration of product is equal yo the reactant. 

Answer:

4

Explanation:

The concentration of a solid or a liquid is essentially constant at equilibrium, because the forward and reverse reaction rates are equal.

(you got this dw :) )

Zaccharias Janssen was a scientist who studied properties of light and invented one of the first compound microscopes in the late 1500s. Which property did Janssen most likely believe about light during the time of his invention?a.Light bends around objects.
b.Light bounces off surfaces.
c.Light travels in a curved path.
d.Light is made up of waves.

Answers

Answer : Option B) Light bounces off Surfaces.


Explanation : Zaccharias Janssen a scientist who was a spectacle maker, is considered to be the founder of a compound microscope; believed that the ray of light when focused on a reflecting surface bounces back. This was the main property of light which he discovered and which led him to a new innovation.

Why are plant cells and animal cells diffrent?

Answers

because plants don't eat meat

What mass of sodium carbonate is required to prepare 2.00 l of 0.250 M Ma2CO3 solution

Answers

Molar mass Na₂CO₃ = 106.0 g/mol

M(Na₂CO₃) =  molarity x volume x molar mass

M(Na₂CO₃) = 0.250 x 2.00 x 106.0

M (Na₂CO₃) = 53 g 

hope this helps!
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