Question

(iii) Why are standard units used in measurements?
(iv) Draw a typical distance-time graph for uniform motion?
(v) What is a combination reaction? Give one example.
(vi) What is an acid-base indicator? Give one example.
(vii) How can carbon dioxide be prepared from an acid?​

Answer 1

you you you you you you you you you you you you you you you you you you you you you you you you you you you you you you you you you you you