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tatiyna
3 years ago
15

Some table salt substitutes have potassium chloride in them. If you consume potassium chloride, are you truly eating potassium a

nd chlorine atoms? Support your answer with chemical evidence.
Chemistry
1 answer:
4vir4ik [10]3 years ago
8 0

Answer:

You are consuming both

Explaination

2Na(s)+Cl two(g)

That gives us 2NaCl(s)

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Calculate the volume of the gas in the balloon using the equation for volume of a sphere​
Harrizon [31]

Answer:

We can just use the formula for the volume of sphere which is 4/3 PI R cubed R is the radius. So if you have a balloon that's a sphere.

Explanation:

6 0
3 years ago
A 1.93-mol sample of xenon gas is maintained in a 0.805-L container at 306 K. Calculate the pressure of the gas using both the i
Alex

Answer : The pressure of the gas using both the ideal gas law and the van der Waals equation is, 60.2 atm and 44.6 atm respectively.

Explanation :

First we have to calculate the pressure of gas by using ideal gas equation.

PV=nRT

where,

P = Pressure of Xe gas = ?

V = Volume of Xe gas = 0.805 L

n = number of moles Xe = 1.93 mole

R = Gas constant = 0.0821L.atm/mol.K

T = Temperature of Xe gas = 306 K

Now put all the given values in above equation, we get:

P\times 0.805L=1.93mole\times (0.0821L.atm/mol.K)\times 306K

P=60.2atm

Now we have to calculate the pressure of gas by using van der Waals equation.

(P+\frac{an^2}{V^2})(V-nb)=nRT

P = Pressure of Xe gas = ?

V = Volume of Xe gas = 0.805 L

n = number of moles Xe = 1.93 mole

R = Gas constant = 0.0821L.atm/mol.K

T = Temperature of Xe gas = 306 K

a = pressure constant = 4.19L^2atm/mol^2

b = volume constant = 5.11\times 10^{-2}L/mol

Now put all the given values in above equation, we get:

(P+\frac{(4.19L^2atm/mol^2)\times (1.93mole)^2}{(0.805L)^2})[0.805L-(1.93mole)\times (5.11\times 10^{-2}L/mol)]=1.93mole\times (0.0821L.atm/mol.K)\times 306K

P=44.6atm

Therefore, the pressure of the gas using both the ideal gas law and the van der Waals equation is, 60.2 atm and 44.6 atm respectively.

5 0
3 years ago
Is there a way to stop radioactive decay?
Wittaler [7]
The chain reaction is easy to stop. Just add a neuron absorbing material. The Control Rods in rectors can do that You just SCRAM (put the rods all the way in) or add something like Boron and the chain reaction stops. 

<span>The problem is the radioactive waste. Those isotopes break down and release heat spontaneously, no neutrons required. The only known way to stop or slow radioactive decay down is to slow time down by moving at relativistic speed or near orbit to a black hole.</span>
4 0
3 years ago
Zat yang menunjukkan perubahan warna saat titk akhir titrasi tercapai
NikAS [45]
What language is that because I speak English
7 0
3 years ago
Question 2
vovangra [49]

Answer:

Option e is correct

The heat required to increase the temperature of copper metal by 1 degree is 0.754 j .

Explanation:

Given data:

specific heat of copper = 0.377 j/g.°C

Heat required to increase temperature = ?

Mass of copper = 2.00 g

Change in temperature = 1°C

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Q = m.c. ΔT

Q = 2 g× 0.377 j/g.°C × 1°C

Q = 0.754 j

The heat required to increase the temperature of copper metal by 1 degree is 0.754 j .

4 0
3 years ago
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