(a)
what are allotropes?
(b)
give two crystalline allotropes of carbon.
(i)
(ii)
(c)
give one property and the use, based on the property, o
you have named in (b) above.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

The diagram below shows a cell placed in a solution. a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution. only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it. it will expand as water moves into it. it will shrink as water moves into it.

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.