The density of an object is 1.23 g/cm3. in which of the following materials will it float?

water (density = 1.00 g/c m3)
olive oil (density = 0.920 g/c m3)
ethyl alcohol (density = 0.789 g/c m3)
citric acid (density = 1.660 g/c m3)

The correct option is Citric acid which has a density of

Explanation: Density plays an important role to determine whether a substance will float or sink.

A substance will float when its density is less than the density of liquid in which it is placed.

And the substance will sink, if it is placed in the liquid having less density than its own.

Density of object =

And we are asked in which liquid will it float, hence the liquid having higher density than the object will make the object float.

Hence, the correct option is Citric acid having density

rosa was looking for patterns to predict the products of chemical reactions. she recorded three similar decomposition reactions in the table.she should record 2licl + 3o2.

in the last row of the table. it is the thermal decomposition of chlorate lithium, hence, she should record these products as: lithium chloride ( 2licl ) and oxygen ( 3o2 )   2 > 2 licl + 3o2.