Answer:
30kg m/s.
Explanation:
30 kg m/s
Explanation
Momentum = Mass × Velocity = 10 kg × 3 m/s = 30 kg m/s
Its momentum is 30 kg m/s.
Explanation:
Momentum is defined by the following equation:
p=mv
where m is the mass of the object in kilograms, v is the velocity of the object in meters per second
p=10 kg⋅3 m/s
=30 kg m/s
Also nice photo.
When wood id burnt, 30 grams of ash are formed due to the chemical changes that occurred.
The missing 370 grams are evaporated into the air where they form other particles and substances.
Answer: 47.276 kJ/mol
Explanation:
According to Gibb's equation:
= Gibbs free energy
= enthalpy change
= entropy change = +106 J/mol
T = temperature in Kelvin = 446 K
= +ve, reaction is non spontaneous
= -ve, reaction is spontaneous
= 0, reaction is in equilibrium
(1kJ=1000J)
Thus the value of ΔH = 47.276 kJ/mol, assuming that ΔH and ΔS do not vary with temperature.
Reactivity of non-metals depend on their ability to gain electrons. So, smaller is the size of a non-metal more readily it will attract electrons because then nucleus will be more closer to valence shell. ... Hence, Br is the non-metal which will be more reactive than At.
