Answer: C
Explanation:
The impact she has on the environment
1s2 2s2 2p6 3s2 3p6 4s1
s orbital can hold 2 electron
p orbitals can hold 6 electron
Answer:
0.726 mol·L⁻¹
Step-by-step explanation:
c = moles/litres
=====
Moles = 29.8 × 1/342.30
Moles = 0.087 06 mol
=====
Litres = 120 × 1/1000
Litres = 0.120 L
=====
c = 0.087 06/0.120
c = 0.725 mol·L⁻¹
Answer:
formula pottasium Oxalate C2k204
Explanation:
C2k204
The substance has the specific heat capacity of steel and is therefore probably steel.
Let the specific heat of the unknown lump of substance be 
.
Energy Exchange = Specific Heat ⨯ Mass ⨯ Temperature Change
Energy the Hot Lump Lost = Energy the Cold Water Gained
Water has a specific heat of 
and a density of 
. 25.0 milliliters of water thus has a mass of 25.0 grams.
Steel has a specific heat of approximately 
. This substance is thus <em>probably </em>steel.
