Answer:
constant appearance
Explanation:
this mean that a pure substance will have a constant appearance ,colour,density ,melting point and boiling point
Answer:
hydroxide ion would be the answer
carbon won't have same number of valence electrons as others
Answer:
the females make eggs and males make the sperm
Explanation:
Answer:
Explanation:
There's 2 steps: first find the volume then the mass
volume=lwh
convert 20 cm to mm: 20x10=200mm
volume=(170)(200)(0.99)
volume=33,660 mm
since the density is in cm cubed, convert 33,660 mm to cm
33,660/10=3366
density=mass/volume, rearrange to get mass=density x volume
mass=19.3 x 3366
mass=64963.8
