Silicon and hydrogen form many compounds, Si Hy, to find one you take a 6.22 g sample and burn it in oxygen. The results produced 12.02 g of Sio, and 5.40 g of H,0. If the experimental
molecular mass is 62.2 g/mol, what is the empirical and molecular formula of this compound?
SiH, +02 SiO, + H20

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.

Which statement explains which component is likely to be more powerful in explaining a scientific phenomenon? a) component c, because a theory is often passed on possibility and not certainty b) component d, because a hypothesis is often based on possibility not certainty c) component c, because the ability to explain several occurrences in the natural world is a characteristic of a hypothesis d) component d, because the ability to explain several occurrences in the natural world is a characteristic of a theory