Technology is anything made my man to make tasks easier. So yes, a screwdriver is technology.
Answer:
C. 2&3 created a chemical change
Explanation:
I showed maturity when I turn 13 year old
3Cl2(g) + 6NaOH(aq) →5NaCl(aq) + NaClO3(aq) + 3H2O(l)
CO2(g) + H2O(l) → H2CO3(aq)
2 NH4Cl(aq) + Ca(OH)2(aq) →2 NH3(aq) + 2H2O(l) + CaCl2(aq)
2HNO3(aq) + 6HI(aq) →2NO(g) +3 I2(s) + 4H2O(l)