Abrick has dimensions of 15 cm by 6.0 cm by 12 cm what is the volume of the brick in cubic meters

 The  volume   of  the brick  in cubic   meters  is 0.00108 m³

 calculation

volume of a brick  =length  x  width   x  height

-length = 15 cm

width = 6.0 cm

height = 12 cm

volume is therefore= 15 cm x 6.0 cm   x 12 cm =1080 cm³

convert  1080 cm³ into m³

that  is  1 cm³  =  1  x 10^-6m³

        1080  cm³ = ? m³

by cross multiplication

=[ (1080 cm³  x 1 x10^-6 m³)  /  1 cm³]  =  0.00108 m³

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.