What is the density of a 5cm3 concrete block that has a mass
of 10g?

The density of a concrete block is 2 g/cm3

Explanation:

The density (δ) is the ratio between the mass and the volume of a compound:

δ=m/v= 10 g/5 cm3= 2 g/cm3

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

2b2t

explanation:

2b2t