Black hole, or a singularity contained within an event horizon through which no light can escape.
Option B is correct
K = Kp /Kr
The given equation indicating, the product containing 6 moles of proton whereas the reactant contains 2 mole of bismuth and 3 mole of hydrogen sulphide.
Hence, in reaction B there are 2 mole of bismuth and 3 mole of hydrogen sulphide reacting to produce 6 moles of proton. whereas the concentration of Bi2S3 is not considered as it is present in solid phase.
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According to "Newton's First Law" an object at rest will begin to move when it is acted upon an unbalanced force.
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Answer:
They form a covalent bond
