Kurde powiedział bym ale nie wiem
The answer is A, you must repeat your experiment to ensure you results are accurate. That is the best way to know for sure and it is what you must do to every experiment.
Answer:
Explanation:
OK this is simple
i'll try to do the unanswered question
CaCl2
In the table
You look for calcium,Ca you fill 1
THen for Chloride=2
i hope you've understood
Pick the glass up, place in a container to be thrown out later, and replace the glass. (Or are you talking about if someone steps on broken glass?)
