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sweet [91]
2 years ago
13

When fat comes in contact with sodium hydroxide, it produces soap and glycerin. Determine whether this is a physical change or a

chemical change. Explain your
Chemistry
1 answer:
schepotkina [342]2 years ago
8 0

Answer:

This is a chemical change because new substances are formed with different properties and identities.

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Give an example of gravitational potential
larisa86 [58]

A raised weight.

Water that is behind a dam.

Have a nice day!

4 0
3 years ago
Read 2 more answers
The ideal gas constant, R has several different values that could be used. Which quantity causes these differences? pressure tem
Blababa [14]

Answer : The correct option is, pressure.

Explanation :

The ideal gas equation is,

PV=nRT

where,

P = pressure of the gas

V = volume of the gas

n = number of moles of gas

T = temperature of the gas

R = gas constant

The value of 'R' has several different values which are :

R=0.08205L.atm/mol.K

R=8.3145L.kPa/mol.K

R=8.3145J/mol.K 

R=1.987cal/mol.K

R=0.08314L.bar/mol.K

That means, the value of 'R' is different due the change in the pressure value and all the variables (temperature, volume and moles) are constant.

Hence, the correct option is, pressure.

3 0
3 years ago
How many particles are there in 5.0 moles​
grigory [225]

Answer:

3.01 × 10^24 particles

Explanation:

According to Avagadro, in one mole of a substance, there are 6.02 × 10^23 atoms or particles.

Using the formula: N = n × NA

Where;

N= number of particles or atoms

n = number of moles

NA = Avagadro's constant or number

This means that for 5 moles of a substance, there will be:

5 × 6.02 × 10^23

= 30.1 × 10^23

= 3.01 × 10^24 particles

8 0
3 years ago
What is the ionsphere in the layers of the atmosphere?
Alika [10]
Hi!

The Ionosphere, also known as the Ozone Layer, is a layer in the atmosphere that is home to Ozone gas. This layer protects earth from ultraviolet (UV) radiation.

Hope this helps :)
5 0
3 years ago
Help please stuck and confused
Alecsey [184]
I’m pretty sure it’s none of the above cause I’m googling it a bunch and and it say you use the dideoxy method
7 0
2 years ago
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