swift to hear, slow to speak
Explanation:
<h3><u>Answer;</u></h3>
Physical property
<h3><u>Explanation;</u></h3>
- A physical property is an aspect of matter that can be observed or measured without changing it. Examples of physical properties include color, shape, size, molecular weight and volume.
- A chemical property on the other hand may only be observed by changing the chemical identity of a substance, that includes whether it can undergo a certain chemical change
.
The volume that would be occupied by 0.25 moles sample of H2 is calculated using ideal gas equation formula
that is PV =nRT
P(pressure)= 1.7 atm
V( volume)?
n(number of moles)= 0.250 moles
R(gas constant)=0.0821 l.atm/mol.K
T (temperature in kelvin)=35+273 = 308k
by making V the subject of the formula V=nRT/P
=(0.250 moles x 0.0821 L.atm/k.mol x 308 k)/( 1.70 atm) = 3.7 L of H2 gas
Answer:
6
Explanation:
The p sublevel has 3 orbitals, so can contain 6 electrons max. The d sublevel has 5 orbitals, so can contain 10 electrons max. And the 4 sublevel has 7 orbitals, so can contain 14 electrons max.