I’m not really sure what the qn is asking for but if i’m not wrong it should be ‘1’ for each blank!
The answer to that is mass and chemical
Answer:
Acids have a pH less than 7. Acids contain lots of hydrogen ions
Alkalis have a pH greater than 7. Alkalis contain lots of hydroxide ions
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<u><em>Please mark as brainliest if answer is right </em></u>
Have a great day, be safe and healthy
Thank u
XD