In regards to sunspot activity, we are

a. in a rapid decline in the number of sunspots observed
b. leveled off in the number of sunspots observed
c. in a heightened level of sunspot activity
d. doing very little to observe sunspot activity
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Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

How many peaks will be present in a mass spectrum for brcl?