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RoseWind [281]
2 years ago
15

Compare and contrast the Andes Mountains and the Rocky Mountains. How are they formed? What consumers and producers are in each?

.
Chemistry
1 answer:
Naily [24]2 years ago
7 0

Answer:

ummm i need help too lol

Explanation:

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(3.88 x 10to the 26th)atoms of copper would be equal to how many moles of copper?
marissa [1.9K]

Answer:

69

Explanation:

hey u said what I said didusbevehdysg

4 0
2 years ago
0.500 L of a gas is collected at 2911 MM and 0°C. What will the volume be at STP?
ioda

Answer:

V₂ =  1.92 L

Explanation:

Given data:

Initial volume = 0.500 L

Initial pressure =2911 mmHg (2911/760 = 3.83 atm)

Initial temperature = 0 °C (0 +273 = 273 K)

Final temperature = 273 K

Final volume = ?

Final pressure = 1 atm

Solution:

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

by putting values,

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 3.83 atm × 0.500 L × 273 K / 273 K × 1 atm

V₂ = 522.795 atm .L. K / 273 K.atm

V₂ =  1.92 L

4 0
3 years ago
It is found that doubling the concentration of a quadruples the reaction rate and tripling the concentration of b triples the re
MatroZZZ [7]
Reactant A must be second order and reactant B first order. Overall = add them so 3rd order.
4 0
3 years ago
The most dangerous form of skin cancer which is often caused by over exposure to ultraviolet radiation is what?
katrin [286]
UV exposure that leads to sunburn is proven in developing melanoma, the most dangerous of the three most common types of skin cancer.
8 0
3 years ago
Which of the following is a physical property of a substance?? A. Combustion B. Corrosion C. Tendency to tarnish D. Solubility
Fofino [41]
A physical property does not change the substance. 

Solubility would be the answer since all of the rest are changing the substance. They all deal with bonds except solubility. 

Answer: D. Solubility

6 0
3 years ago
Read 2 more answers
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