When HCl reacts with a metal, hydrogen gas will be evolved. To test this gas, insert a burning splinter into the outlet of gas, the flame will be extinguished with a pop sound. This will confirm the gas is hydrogen.
Answer: electrons
Explanation: Electrons have a charge of -1 each. If two left, the remaining atom would have a positive +2 change.
Answer:
The answer to your question is: a = 2.1 m/s²
Explanation:
Data
Acceleration : ?
Mass = 2000 kg
Force = 4200 N
Formula
Newton's second law of motion F = ma
a = F / m
Substitution
a = 4200 N / 2000 kg
a = 2.1 m/s²
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</span><span> A radioactive process in which a particle which has two neutrons and two protons is forced to throw from the nucleus of a radioactive atom is called alpha decay .so helium atom is lost in alpha decay</span>
<span>213 Bi gives 4/2 He + 209 Tl </span>
