Minerals physical characteristics are hardness,luster,the way it’s solid and chemical would be the way the color changes and it’s density
Answer:
fat provide 9 calories per gram
Answer:
1.Most metal oxides are insoluble in water but some of these (e.g. Na2O.
Explanation:
2.: (i) A hissing sound is observed.
1.ii) The mixture starts boiling and lime water is obtained.
EM is created by moving charges back and forth will produce oscillating electric and magnetic fields, and these travel at the speed of light