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chalk contains carbon calcium and oxygen in the ratio of 3: 10: 12 find the percentage of calcium in the Chalk​

By Everleigh

chalk contains carbon calcium and oxygen in the ratio of 3: 10: 12 find the percentage of calcium in the Chalk​

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Everleigh

what are the multiplicative and additive identities in the set of natural number​

Compare the following and put an appropriate sign(‘>’,’< ‘or ‘=’)
a)3and 7 5 13
b)8.6 and 8.096

1 thought on “chalk contains carbon calcium and oxygen in the ratio of 3: 10: 12 find the percentage of calcium in the Chalk​”

  1. Answer:We have,

    Calcium:Carbon:Oxygen=10:3:12

    Then,

    Total parts is =10+3+12=25

    Now

    Carbon%=

    total

    Carbon

    ×100

    =

    25

    3

    ×100

    =3×4

    =12%

    Hence, this is the answer

    Reply

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