Answer:
It is a molecular compound.
Explanation:
1. You can use the formula V1/ T1 = V2/T2
Solve for V2 give than V1= 10.0 L, T1= 25 C= 298 K, T2= 10 C= 283 K.
(10.0L/298K)= V2/283K------> V2= 9.50 L.
I cant see the answer there.. weird!
2. you can use the formula P1V1= P2V2
solve for V2 given than P1= atm, V1= 2.0 L, P2= 300 atm.
(1atm)x(2.0L)= (300atm)V2----->0.00667 atm.
so answer is A.
The molality of a solution : m = 2 mol/kg
<h3>Further explanation</h3>
Given
6 moles of NaOH
3 kg water
Required
The molality
Solution
Molality shows the number of moles dissolved in every 1000 grams of solvent( 1 kg solvent)
m = n. (1000 / p)
m = Molality
n = number of moles of solute
p = Solvent mass (gram)
Input the value :
m = 6 moles : 3 kg
m = 2 mol/kg
Answer: they are called electrical conductors.
Explanation:
Some materials let electricity pass through them easily. These materials are known as electrical conductors. Many metals, such as copper, iron and steel, are good electrical conductors. That is why the parts of electrical objects that need to let electricity pass through are always made of metal.