Question

questions 6 and 7

*(6. The water from the drinking fountain in the other building tastes bad. From this observation, write a problem, hypothesis, and propose an experiment to test that hypothesis. . Problem = wwwwww • Hypothesis • Experiment www * Classify the following as a pure substance, a homogeneous mixture or a heterogeneous mixture and give a short explanation of your classification. Mcup of horlea / 4444444h * b. A medicine that says shake well before using ul Bldamond /11 1 1/1/2 SU/Kibuy tapovoler/111 MM Hill kloubkd of sandy wald/ Classify the following as a chemical change, a chemical property, a physical change, or a physical property. *a. Logs are able to burn Bu flabet skolak belyd chahechouhlalamung U M 1ste kohtless Solutions vé gombines and too is releascar MM A * d. A solid is added to a colorless solution and it dissolves

Answer 1

We have 2 problems here

First we will solve question 6

Problem - the water tastes bad

Hypothesis - the taste of water is bad because of the hardness of water

Experiment- to determine the hardness of water

Aim - to determine the hardness of water

Here we will measure the hardness of water by using EDTA and ph 10 buffer and EBT indicator can be used

Question 7

In question 7

You have asked about the medicine that says shake well before use.

These kind of medicine are heterogeneous in nature and hence to mix properly before consuming we have to shake it well

So answer to this question is

heterogeneous

I hope this helps. If you have any query or want more detailed explanation, feel free to ask in the comments section below.