Multiple Choice
Mendeleev arranged the elements according to
A) atomic number and atomic weight.
B) atomic weight and chemical reactivity.
C) electron configuration and atomic weight.
D) physical state and relative abundance.
Correct Answer:
Verified
Correct Answer:
Verified
Q6: What is the chemical formula for iron(II)phosphate?<br>A)Fe<sub>2</sub>P<br>B)Fe<sub>2</sub>PO<sub>4</sub><br>C)Fe<sub>3</sub>P<sub>4</sub><br>D)Fe<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>
Q7: Assume that the mixture of substances in
Q8: Which of the compounds,Ca<sub> </sub>H<sub>2</sub>,H<sub>2</sub>O<sub> </sub>,C<sub> </sub>H<sub>4</sub>,XeF<sub>4</sub>
Q9: The symbol of the isotope having Z
Q10: Which subatomic particle has the smallest mass?<br>A)a
Q12: The solid compound,Na<sub>4</sub>SiO<sub>4</sub>,contains<br>A)Na<sup>+</sup>,Si<sup>4+</sup>,and O<sup>2-</sup> ions.<br>B)Na<sup>+</sup> ions and
Q13: According to the law of multiple proportions,if
Q14: A sample of pure lithium carbonate contains
Q15: Which element indicated by letter in the
Q16: The chemical formula for the carbonate ion