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harkovskaia [24]
4 years ago
6

Why do some metals loose their shine overtime but gold does not?

Chemistry
1 answer:
aivan3 [116]4 years ago
5 0
Becuase gold is very unreactive and does not react with oxygen whereas other metals do, therefore they tarnish and gold does not
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How could we stop an asteroid that we know was going to hit Earth?<br><br><br> Pls help ASAP
myrzilka [38]

Answer:

An object with a high mass close to the Earth could be sent out into a collision course with the asteroid, knocking it off course. When the asteroid is still far from the Earth, a means of deflecting the asteroid is to directly alter its momentum by colliding a spacecraft with the asteroid.

Hope it helps!!

5 0
3 years ago
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Which 1.0 M solution has the lowest pH? <br> A -HCN <br> B -H3PO4 <br> C -H2C2O4<br> D -HCl
fredd [130]
The solution with the lowest pH would mean that it is an acid, specifically a strong acid which completely dissociates into ions in aqueous solution. Among the choices listed above, I think the correct answer is option D. It is nitric acid that will have the lowest pH because it is the only strong acid in the group
8 0
4 years ago
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Which two changes would make this reaction favor the formation of products? 2502 +02= 2503 + energy A. Raising the temperature B
Alisiya [41]

C. Decreasing the temperature

D. Raising the pressure​

<h3>Further explanation</h3>

Given

Reaction

2SO₂+O₂⇔2SO₃+energy

Required

Changes to  the formation of products

Solution

The formation of SO₃ is an exothermic reaction (releases heat)

If the system temperature is raised, then the equilibrium reaction will reduce the temperature by shifting the reaction in the direction that requires heat (endotherms). Conversely, if the temperature is lowered, then the equilibrium shifts to a reaction that releases heat (exothermic)  

While on the change in pressure, then the addition of pressure, the reaction will shift towards a smaller reaction coefficient  

in the above reaction: the number of coefficients on the left is 3 (2 + 1) while the right is 2

As the temperature decreases, the equilibrium will shift towards the exothermic reaction, so the reaction shifts to the right towards SO₃( products-favored)

And increasing the pressure, then the reaction shifts to the right SO₃( products-favored)⇒the number of coefficients is greater

4 0
3 years ago
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6.0 L of gas in a piston at a pressure of 1.0 atm are compressed until the volume is 3.5 L. What is the new pressure inside the
dimulka [17.4K]

From the calculations and by the use of Boyles law, the new pressure of the gas is 1.7 atm

<h3>What are gas laws?</h3>

The term gas law is used to demonstrate the relationship between the volume, pressure, number of moles and temperature of a gas.

Using the Boyles law;

P1 = 1 atm

P2 = ?

V1 = 6 L

V2 = 3.5 L

P1V1= P2V2

P2= P1V1/V2

P2= 1 atm * 6 L/3.5 L

= 1.7 atm

Learn more about Boyles law:brainly.com/question/1437490

#SPJ1

3 0
2 years ago
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olga_2 [115]
I believe it’s the small intestine
3 0
3 years ago
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