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mars1129 [50]
3 years ago
12

The temperature at which a liquid becomes a solid is the:

Chemistry
2 answers:
horrorfan [7]3 years ago
6 0
The answer is Freezing point Because It would be 0 degrees Celsius is it freezing point. <span />
Leno4ka [110]3 years ago
5 0
The point where a liquid becomes a solid is its freezing point. The freezing point of water, for example, is 0°C, at which point it turns to ice.
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Help , thank you !!
zalisa [80]

Answer:

radioactive

nonmetal

hydrogen

liquid

rarely (since they have a full valence electron shell)

inner transition

8 0
3 years ago
How many moles of ammonia are produced 16 miles of hydrogen gas react with plenty of hydrogen gas
hjlf
How many moles of ammonia are produced when 6 moles of hydrogen gas react with nitrogen gas? What are some simple steps I can take to protect my privacy online? 6 * 2/3 moles of ammonia must be produced. Therefore 4 moles of ammonia can be produced
5 0
3 years ago
How would you make a 2.00L of 0. 500M sodium chloride solution. (assume you have a fully equipped lab with water); sketch, calc
Gwar [14]

Answer:

Sodium chloride solution:

First you need to calculate the mass of salt needed (done in the explanation), which is 58.44g. Then it have to be weighted in an analytical balance in a weighting boat and then transferred into a 2L volumetric flask that is going to be filled until the mark with distilled water.

Sulfuric acid dilution:

First you need to calculate the volume needed (done in the explanation), it is 16.6 mL. Using a graduated pipette one measures this volume and transfer it into a 2L volumetric flask that is already half filled with distilled water, and then one fills it until its mark.

Explanation:

Sodium chloride solution:

Each liter of a 0.500M solution has half mol, so 2L of said solution has 1 mol of salt. Sodium chloride molar mass is 58.44g/mol, so in 2L of solution there is 58.44g of salt. That`s the mass that`s going to be weighted and transferred to a 2L volumetric flask.

Sulfuric acid dilution:

This is the equation for dilution of solutions:

c_{1} v_{1} =c_{2} v_{2}

Where "c1" stands for the initial concentration (stock solution concentration), "v1" for the initial volume (volume of stock solution used), "c2" for the desired concentration and "v2" for the desired volume.

When we are diluting from a stock solution we want to know how much do we have to pipette from the stock solution into our volumetric flask. We do so by isolating the "v1" term from the dilution equation:

v_{1} =\frac{c_{2} v_{2} }{c_{1} }

in this case that would be:

v_{1} =\frac{0.100 x2.0 }{12.0 }=0.0166L=16.6mL

5 0
3 years ago
Which statement correctly compares an atom of an alkali metal with an atom of the alkaline earth metal next to it on the periodi
Mumz [18]
<span>The alkali metal atom forms a +1 ion, while the alkaline earth metal atom forms a +2 ion. hope this helps</span>
6 0
3 years ago
A bowling ball (mass = 7.2 kg, radius = 0.10 m) and a billiard
evablogger [386]

Answer:

Maximum gravitational Force: F_{gmax} = 1,026*10^{-08} N

Explanation:

The maximum gravitational force is achieved when the center of gravity are the closer they can be. For the spheres the center of gravity is at the center of it, so the closer this two centers of gravity can be is:

bowling ball radius + billiard ball radius = 0,128 m

The general equation for the magnitude of gravitational force is:

F_{gmax}  = G \frac{M*m}{r_{min}^{2} }

Solving for:

G = 6,67*10^{-11}  \frac{Nm^{2}}{kg^{2}}

M = 7,2 kg

m = 0,35 kg

r_{min} = 0,128 m

The result is:

F_{gmax} = 1,026*10^{-08} N

3 0
3 years ago
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