Answer:
A synthesis reaction occurs when two or more reactants combine to form a single product. ... Replacement reactions occur when elements switch places in compounds. In a single replacement reaction, one element takes the place of another in a single compound. In a double replacement reaction, two compounds exchange elements.
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
The answer is b.
Hope that helps :)
You’ll need to be sure to count all the atoms in each side of the chemical equation.
B
A qualitative observation describes the characteristics of a substance without quantifying them.
