234.
In the equation:
Th →
90
particle is presented by. X?
234
Pa + X, which
91
0
1
1.
3.
-70
TH
0
4
He
2.
4.
*70

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

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.