Describe how you would test a sample of food to show it contains protein. Give the reason for any safety precautions you would take.

Add iodine and wait for it change in blue black

Explanation:

Add biuret solution to test for protein

Explanation:

Add biuret solution to the test tube with the solution in it and shake gently. If turns around pink or purple, protein is contained.

Safety precautions would be to be careful with the biuret solution as it is harmful to skin and bad to inhale.

i think that d. wind is the answer.   i missed the question when i answered a. currents.

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

hope this , have a good day. c;