Answer:
The SI system , also called theatrics system, is used around the world
Answer:
-A molecule is the smallesr part is compound whereas a compound is the combination of two or more atoms in a fixed proportion by wiehgt.
- A glass of water is an example of compound but a small portion of water can be called molecule.
Example:
Mass = ?
Density = 25 g/mL
Volume = 5 mL
therefore:
d = m / V
25 = m / 5
m = 25 x 5
m = 125 g
hope this helps!
Answer:
more/less depending on if it lost or gained electrons during the ionic bond process
Answer:
Explanation:
GIven that:
The activation energy = 250 kJ
k₁ = 0.380 /M
k₂ = ???
Initial temperature 
1001 K
Final temperature 
298 K
Applying the equation of Arrhenius theory.
where ;
R gas constant = 8.314 J/K/mol
/M .sec
Half life:
At 1001 K.
1.82368 secc
At 298 K:
