New Activity 2: Identify Me! Directions: Given the situation below, answer the question and write it in your Science activity notebook. COVID-19 pandemic enables most individuals to make homemade disinfectants. A disinfectant with 70% ethyl alcohol indicates that it is a solution containing water and ethyl alcohol. What does 70% indicate? Answer:

Question

CloudyClothy · Answer

The 70% indicates the concentration of ethyl alcohol in the solution. It means that in every 100 mL of the disinfectant, 70 mL is pure ethyl alcohol and the remaining 30 mL is water. This concentration is effective in killing germs and viruses because water helps the alcohol penetrate cell membranes more effectively.

Answered by CloudyClothy | 2025-05-24

Answer (1)

Related Questions in Chemistry

[Sagot para sa’yo] how will you explain the concept of human person to a child

[Sagot para sa’yo] The chemicals after a chemical change ______. A. have properties identical to the chemicals before the change B. have properties different to the chemicals before the change C. both A and B D. none of the above

[Sagot para sa’yo] The mass of H₂O produced when 209 g of methanol (CH₃OH) are used up can be calculated using stoichiometry and the given balanced equation: 2 CH₃OH + 3 O₂ → 2 CO₂ + 4 H₂O​

[Sagot para sa’yo] Discuss the historical overview of crime causation by different philosophy; 2. Explain the demonological theory; 3. Identify the advocates of the classical theory; and 4. Discuss their contributions to the theory

[Sagot para sa’yo] what is the rarest substance on Earth

[Sagot para sa’yo] The mass of H₂O produced when 209 g of methanol (CH₃OH) are used up can be calculated using stoichiometry and the given balanced equation: 2 CH₃OH + 3 O₂ → 2 CO₂ + 4 H₂O