There are dm 0.145 in 14.5 mm
Answer:
"The elements are arranged in seven horizontal rows,called periods or series,and 18 vertical columns,called Groups."
Explanation:
Risk*
Answer is "an indicator".
Indicators change its color according to the pH of the solution. They shows different colors when the medium is basic and acidic.
Indicator pH range Acidic color Basic color
Methyl orange 3.1 - 4.4 red yellow
Phenolphthalein 8.2 - 10.0 colorless pink
Bromothymol blue 6.0 - 7.6 yellow blue
Answer:
D by counting the number of times the carbon symbol appears or balls that are colour- coded