Which two statements are scientific claims? O A. The apparent movement of Mars across the sky influences how
people behave.
B. The polar ice caps of Mars consist mainly of carbon dioxide ice.
C. Mars is the best planet in the solar system for humans to explore
further,
D. Images of Mars show that it once had liquid water flowing on its
surface.

Draw the structure for 5-isopropyl-2-methyl-3-nonene

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Match the words in the left column to the appropriate blanks in the sentences on the right. (a) this is the law of definite proportions: all samples of a given compound, regardless of their source or how they were prepared, have proportions of their constituent elements. (b) this is the law of conservation of mass: in a reaction, matter is neither created nor destroyed. (c) this is the law of multiple (c) this is the law of multiple blank: when two elements form two different compounds, the masses of element b that combine with 1 g of element a can be expressed as a ratio of small whole-numbers. in this example, the ratio of \rm o from hydrogen peroxide to \rm o from water = 16: 8 \to 2: 1, a small whole-number ratio.: when two elements form two different compounds, the masses of element b that combine with 1 g of element a can be expressed as a ratio of small whole-numbers. in this example, the ratio of o from hydrogen peroxide to o from water = 16: 8 → 2: 1, a small whole-number ratio.