(c) Figure 2 shows the chemicals given to a student Figure 2
Dilute
sulfuric
acid
Four different powdered metals
w
Z
Х
Y
The student wants to investigate the reactivity of the four metals.
Outline a plan the student could use to investigate the relative reactivity of the four
metals, W, X, Y and Z.
The plan should use the fact that all four metals react exothermically with dilute
sulfuric acid.
You should name the apparatus used and comment on the safe use of the
chemicals

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?

When an experimenter draws a conclusion that he assumes will apply to all situations set up similarly to his test situation, even though he cannot possibly have examined all possible test scenarios, the experimenter is using deductive reasoning inductive reasoning abductive reasoning subjective reasoning