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Sunny_sXe [5.5K]
2 years ago
12

Gold alloys are _____.

Chemistry
1 answer:
chubhunter [2.5K]2 years ago
7 0
Gold alloys consist of most commonly Nickel! 
Most commonly used in things like jewelry so it doesn't have such a heavy weight.
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2. If 1.75 L of a gas is at 700. K and is under 250. kPa of pressure, what will the new
Andrews [41]

Answer:

Final volume is 3.50L

Explanation:

It is possible to find volume of a gas using combined gas law:

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

<em>Where P is pressure, V is volume and T is temperature of 1: initial state and 2: final state</em>

If initial state of the gas is:

1.75L of a gas is at 700K and is under 250kPa of pressure

And final state is:

298K and 53.2kPa.

Replacing:

\frac{250kPa*1.75L}{700K} =\frac{53.2kPa*V_2}{298K}

0.625L = 0.1785*V₂

<em>3.50L = V₂</em>

Thus, <em>final volume is 3.50L</em>

3 0
3 years ago
Water is composed of the same elements as hydrogen peroxide why do these substances have different properties
Dmitrij [34]
They have different ratios of elements. Water is H20 and Hydrogen Peroxide is H202. The extra oxygen atom in hydrogen peroxide causes it to be structured and react differently.
4 0
3 years ago
A basketball rolling across a flat floor has ____energy.
Elden [556K]

Answer:

kinetic energy

Explanation:

8 0
2 years ago
What is the total number of molecules in 11.2 liters of N2 gas at STP
scoray [572]
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1 mole -------------- 22,4 L
 x mole -------------- 11,2 L

x = 11,2 / 22,4

x =  0,5 moles of N2

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0,5 moles ------------ y molecules

y = 0,5 . 6,02.10²³

y = 3,01.10²³ molecules 

7 0
3 years ago
QUESTION 9<br>1 POINT<br>Which state of matter has the weakest intermolecular forces?​
Kay [80]

Answer:

The answer to this question is Gas.

7 0
3 years ago
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