Answer:
the element that takes part in a chemical reactions
there are usually two or more reactants in chemical reactions
except decomposition reactions
False. That's why sound cannot be heard in space.
Answer:
I think its (A)The specific heat of an object explains how easily it changes temperatures.
Explanation:
Answer:
Momentum P is 840000kgm/s or 8.4 × 10^6
Explanation:
Data :
Mass = 21000 kg
Velocity = 400 m/s
So momentum is given as
P = mv
P = 21000×400
P = 8400000 kgm/s
P = 8.4 × 10^6
Answer:
melting polar icecaps seems the best, hopes this helps!