Hydrogen is used in oxy-hydrogen flames for melting metal...
Hydrogen is used in oxy-hydrogen flames for melting metals because it
evolves a lot of heat when burnt
combines explosively with oxygen
is a very light gas
is a rocket fuel
Correct answer is A
No explanation has been provided for this answer.
MnO2(s) + xHCl(aq) → MnCl2(aq) + yH2O(l) + zCl2(g) In theequation above, what are the values of x...
An organic compound containing 40.1% carbon and 6.6% hydrogen has an empirical formula of? ...
The atom with the electron configuration 1s22s22p63s23p63d104s\(...
What is the chemical symbol for Hafnium? ...
Consider the following reaction equation: 2HCl+Ca(OH)2→CaCl2+H2O. What is the v...
If a reaction is exothermic and there is a great disorder, it means that? ...
The ores that can be concentrated by flotation are ...
How many orbitals are associated with the p-sub energy level? ...