None. To bind with an hydrogem atom, the carbon needs to ''share'' one of it's valence electron's with the hydrogen's valence electron. Therefore, forming 4 bounds means the carbon atom will share it's 4 valence electrons and there will be no lone electrons.
Answer:
B.
Explanation:
ive done this before trust
The chemical reactions necessary are unable to occur without the addition of different ingredients
Answer:
1 mole of Sn is required to react with 40 gram of HF
Explanation:
It is given that molar mass of HF is 20.01 g/mol
Mass of HF is 40 gram
So number of of HF is
Number of moles 
When reaction between HF and Sn takes place
From the reaction it is clear that 1 mole Sn require 2 moles HF
Therefore 2 moles of HF require 1 mole Sn
Answer:
The units of both types of energy are Joule (kg × m² × s⁻²).
Explanation:
Step 1: Show the units of kinetic energy
The equation for kinetic energy is:
K = 1/2 × m × v²
where,
m: mass
v: speed
The units are:
K = 1/2 × m × v²
[K] = kg × (m/s)²
[K] = kg × m² × s⁻² = J
Step 2: Show the units of gravitational potential energy
The equation for gravitational potential energy is:
G = m × g × h
where,
m: mass
g: gravity
h: height
The units are:
G = m × g × h
[G] = kg × m/s² × m
[G] = kg × m² × s⁻² = J
