Question

1]chalk contains calcium, carbon, oxygen in the ratio 10:3:12. Find the percentage of carbon in chalk
2] if in a stick of chalk, carbon is 3grams, what is the weight of the chalk stick?

Answer 1

Answer:

Himachal Pradesh is a hilly area while Kerala is a coastal area. The climate of Kerala, as per Koppen's classification, is tropical monsoon with seasonally excessive rainfall and hot summer except over Thiruvananthapuram district, where the climate as tropical savana with seasonally dry and hot summer weather.

Answer 2

Answer:

Step-by-step explanation:

1) let chalk contains 10x, 3x ,  12x grams of calcium, carbon, oxygen

total weight=10x+3x+12x=25x

percentage of carbon in chalk = 3x/25x*100=12%

2) given 3x=3 so x=1

total weight = 25x =25 grams