He substance, cocl2, is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist air. What is its name?

1.) How can people reduce their exposure to BPA? 2.) Should BPA be kept out of products that people frequently use? Why or why not?

2. 2AgNO3 + CaCl2 → 2AgCl + Ca (NO3) 2 How much AgCl could be obtained starting with 100g of each reactant.

Consider the chromate-dichromate equilibrium shown where the chromate ion appears yellow, and the dichromate ion is orange. determine how the equilibrium will be affected by the ph change and fill in the the statements accordingly.

35 Which element reacts with oxygen to form ionic bonds? (1) calcium (3) chlorine (2) hydrogen (4) nitrogen

How many valence electrons are in an atom with the electron configuration in example A? Example A: 1s22s22p63s23p64s1 7 1 6 19

1) What is the electron configuration of an electrically neutral atom of sodium? 2) What is the electron configuration of an electrically neutral atom of neon? 3) What is the electron configuration of an electrically neutral atom of oxygen?

5.1 ounces to grams.

Flowering plants reproduce from seeds which role does an Apple play in this process

What would make bromine a group 17 element more similar to a noble gas

Use the following chemicals. ethanol, hexane, butanone, water, benzene, diethyl ether, ethyl acetate, acetone 4. Rank the solvents based on polarity, smallest to largest.