The volume of 50 g of a substance is 20 `cm^3`. If the density of water is `1(g)/(cm^3)`, will the substance float or sink?

The volume of 50 g of a substance is 20 cm^3 . If the density of water is 1 gcm^-3 , will the substance float or sink ?

The volume of 100 g of a substance is 80cm^3 . If the density of water is 1 gcm^-3 , will the substance float or sink?

The volume of 50 g of a substance is 20cm^(3). If the density of water is 1g//cm^(3) , will the substance sink or float when placed on the surface of water will be the mats of water dispaced by the substance ?