I’ll give brainliest:) 2. COPY and COMPLETE these symbol equations
and balance them:

a) Na + 02→
b) Mg + HCI →
c) Zn + H2SO4 ->
d) Pb + O2 →
e) Ca + H2O →

Y=‐1x + 7 if y has a value of ‐24 what is the value of x?

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.