Balance and identity the type of chemical reactions.

Mg (s) + HNO3 (aq) - > H2 (g) + Mg (NO3) 2 (aq)

Which of these is the BEST example of physical weathering? A. insects eating a dead tree B. a bulldozer pushing soil C. ice fracturing a stone D. acid rain dissolving limestone

Plants and animals are what components?

Which atom attracts electrons most strongly when bonded? oxygen (O) magnesium (Mg)

How does the chemical formula for water influence its chemical properties?

In comparing the absorption spectra for chlorophyll a and chlorophyll b, which statement is most correct?

Which weighs more 10g of iron or 10g of water

Which pair of elements would combine to form an ionic compound? а b sodium and calcium sodium and chlorine carbon and oxygen carbon and sulfur с d

How many moles are there in 545g of Fe2O3?

How are magic minerals different from Felsic minerals? A. Mafic minerals contains lower levels of iron and magnesium. B. Mafic minerals contain more dark-colored, high-density minerals C.

Which of the following gases in Earth's atmosphere would you expect to find as molecules and which as individual atoms? a. Nitrogen b. Oxygen c. Argon