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tatyana61 [14]
2 years ago
7

What term describes a mixture of 42 percent gold, 20 percent silver, and 38 percent copper?

Chemistry
1 answer:
katrin2010 [14]2 years ago
8 0
The answer is B, alloy.
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These are three theorized causes of A) glacial melting. B) changing of the climate. C) high and low ocean tides. D) movement of
professor190 [17]

actually its D) movement of tectonic plates

8 0
3 years ago
0.820 L has a mass of 2.56kg what is the density of this liquid in kg/L
3241004551 [841]

Density ρ=\frac{m}{v}

=\frac{2.56 kg}{0.820 L} \\=3.121kg/L

8 0
3 years ago
If you had a bottle that contained 5.69x1024 molecules of water, how many
Valentin [98]
Yeah what the other person said ^
6 0
2 years ago
When the vapor pressure of water is 0.106 mmHg, determine the reaction quotient for that above equilibrium.
TEA [102]

Answer:

Answer is explained in the explanation section below.

Explanation:

Note: This question is not complete and lacks necessary data to solve. However, I have found a similar question and I will be using its data to solve this question for the sake of understanding and concept.

Solution:

Equilibrium Reaction:

CaO(s) + H2O(g) -->Ca(OH)2(s)    

We need to find the reaction quotient for this question:

Q = \frac{1}{P_{H20} }

Here, only the pressure of the gaseous reactant will be used and here H20 is the only reactant which is gaseous.

And we are given that, vapor pressure of water is = 0.106 mmHg

So,

Now, we need to convert it into atm

so, 1atm = 760 mmHg

0.106 mmHg = 0.106/760 atm

0.106 mmHg = 1.394 x 10^{-4} atm

Plugging in the values in the equation, we get:

Q = \frac{1}{P_{H20} }

Q = \frac{1}{1.394 . 10^{-4} }

Q = 7173.60 atm^{-1}

8 0
3 years ago
Determine the mass of 2.5 cups of water if the density of water is 1.00 g/cm^3 and 1 cup = 240 mL
jarptica [38.1K]
1) we find out the volume of the water.
Remember: 1 ml=1 cm³
Volume of the water=number of cups x volume of one cup.
Volume of the water=2.5(240 ml)=600 ml=600 cm³

Density=mass/volume    ⇒ mass=density x volume

2) we calculate the water mass of 600 cm³ of water.
mass=density x volume
mass=(1 g/cm³)(600 cm³)=600 g.

Answer: the mass of 2.5 cupas of water is 600 g.
8 0
2 years ago
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