Answer:
adjusting the air mix by rotating the barrel and adjusting the gas with the needle valve to obtain a flame of suitable height and intensity
Yes bsjaibsvdnakiebdnsoehdbdnsieveb
Answer:
C more collision between molecules
Explanation:
increase in heat causes increase in kinetic energy of the particles
Answer:
Lithium, Potassium and Calcium
Explanation:
Because they are all in group one of the periodic table
