an unknown substance has a ph of 4. which statement is true? *\na. it is alkaline\nb. it is a base\nc. it is…

an unknown substance has a ph of 4. which statement is true? *\na. it is alkaline\nb. it is a base\nc. it is neutral\nd. it is an acid\nwhich of the following properties best describes a base? *\na. sour taste\nb. donates hydrogen ions\nc. slippery texture\nd. ph less than 7\na piece of blue litmus paper is dipped into a liquid and turns red. what does this indicate? *\na. the liquid is an acid\nb. the liquid is a base\nc. the liquid is neutral\nd. the test is inaccurate

an unknown substance has a ph of 4. which statement is true? *\na. it is alkaline\nb. it is a base\nc. it is neutral\nd. it is an acid\nwhich of the following properties best describes a base? *\na. sour taste\nb. donates hydrogen ions\nc. slippery texture\nd. ph less than 7\na piece of blue litmus paper is dipped into a liquid and turns red. what does this indicate? *\na. the liquid is an acid\nb. the liquid is a base\nc. the liquid is neutral\nd. the test is inaccurate

Answer

Brief Explanations:

  1. For the first question, substances with pH less than 7 are acids. Since the unknown substance has a pH of 4 (less than 7), it is an acid.
  2. For the second question, bases have a slippery texture. Acids have a sour taste and donate hydrogen - ions, and bases have a pH greater than 7.
  3. For the third question, blue litmus paper turns red in acidic solutions.

Answer:

  1. D. It is an acid
  2. C. Slippery texture
  3. A. The liquid is an acid