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djverab [1.8K]
3 years ago
14

Please don't delete but do you know what makes slime?

Chemistry
2 answers:
Dmitriy789 [7]3 years ago
8 0
Its D made it in science class last year

Mice21 [21]3 years ago
6 0
I’ve heard that borax helps for sure try watching YouTube for ideas :)
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What is the density of ammonia gas, nh3, at 31°c and 751 mmhg?
solmaris [256]
First, we will use the general gas formula to get the number of moles.
PV = nRT where:
P is the pressure of gas = 751 mmHg = 100125.096375 Pascal
V is the volume = 1 liter = 0.001 m^3
n is the number of moles we want to calculate
R is the gas constant = <span>8.314 J/(K. </span>mol<span>)
T is the temperature = 31 degrees celcius = </span>304.15 degree kelvin

Substitute in the above equation to get the number of moles as follows:
100125.096375 * 0.001 = n * 8.314 * 304.15
n = 0.039595 moles

Now, we will use the number of moles to get the mass as follows:
number of moles = mass / molar mass
mass = number of moles * molar mass
number of moles = 0.039595 moles
molar mass of ammonia (NH3) = 14 + 3(1) = 17 grams
Substitute to get the mass as follows:
mass = 0.039595 * 17 = 0.673122 grams

Last step is to get the density as follows:
density = mass / volume
mass = 0.673122 grams
volume = 1 liter
density = 0.673122 / 1 = 0.673122 grams/liter = <span>0.000675 kg/L</span>



8 0
3 years ago
What is difference between a pH of 8 and a pH of 12 in terms of H+ concentration?
Katena32 [7]

Answer:

At a greater value of pH, [H⁺] is really low.

Solution with pH = 8 has more [H⁺] than solution at pH =12.

Explanation:

pH = - log [H⁺]

10^-pH = [H⁺]

At pH = 8, [H⁺] = 10⁻⁸  → 1×10⁻⁸ M

At pH = 12, [H⁺] = 10⁻¹²  → 1×10⁻¹² M

In conclussion, at a greater value of pH, [H⁺] will be really low.

Solution with pH = 8 has more [H⁺] than solution at pH =12.

8 0
3 years ago
To decide on criteria for structure strength to avoid damage from earthquakes, engineers look at ________ to determine _________
N76 [4]
I believe it’s C, it makes the most sense
4 0
3 years ago
Read 2 more answers
There are 64 pretzels in a 16-ounce bag how many proportion would be in a 5-ounce bag?
qwelly [4]

Answer:

20 pretzels.

Explanation:

So in the first bag there at 64 pretzels in 16-ounces.

We can divide both these numbers by 16, to get 4 pretzels per ounce.

If we multiply both numbers by 5, we get 20 pretzels per ounces.

So, 20 pretzels i5-ounce bag.

3 0
3 years ago
When liquid water is heated, it will eventually change to a gas through ................ . Gas particles move................ (f
Kobotan [32]

Answer:

evaporation

faster

weeker

7 0
3 years ago
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