Bright Line Emission Spectrum: As the excited electron returns to ground state (it's lower energy level) the energy it originally absorbed is released as discrete lines of light.
Answer:
The answer to your question is: c
Explanation:
A descomposition reaction is a chemical reaction in which the only one reactant yields two or more products.
a) HCl + NaHCO3 → H2O + CO2 + NaCl
This is not a descomposition reaction because there are two reactants not one, this option is incorrect.
b) 2Na + Cl2 → 2NaCl
THis option is also incorrect because there are two reactants in descompositin reaction there is only one reactant.
c) 2HgO → 2Hg + O2
There are only one reactant that yields 2 products, this is a descomposition reaction.
d) AgNO3 + NaCl → AgCl + NaNO3
THis is not a descomposition reaction because there are two reactants.
Answer:
Explanation:
We can write the amount of mass of radon-222 left after a time t by using the equation:
where
is the initial mass
t is the time
is the half-life
Substituting t = 15.2 d in the formula, we find
Answer:
Velocity
Explanation:
Synonyms are words/phrases that mean the exact or nearly exact same in meaning. Velocity, pace, and speed all mean close to the same thing as far as the rate in which something is moving.