Multiple Choice
The first people to attempt to explain why chemical changes occur were
A) alchemists
B) metallurgists
C) physicians
D) physicists
E) the Greeks
Correct Answer:
Verified
Correct Answer:
Verified
Q42: The correct name for V<sup>3+</sup> is<br>A)vanadide<br>B)vanadite ion<br>C)vanadium(III)ion<br>D)vanadium(V)ion<br>E)trivanadium
Q43: Write the formula for:<br>-phosphorus trichloride
Q44: Many classic experiments have given us indirect
Q45: How many protons and electrons does the
Q46: If the Thomson model of the atom
Q48: Name the following compounds:<br>-K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>
Q49: Bromine exists naturally as a mixture of
Q50: The formula of water,H<sub>2</sub>O,suggests:<br>A)There is twice as
Q51: Which among the following represent a set
Q52: The correct name for Ca<sup>2+</sup> is<br>A)calcium<br>B)calcium(II)ion<br>C)calcium ion<br>D)calcium(I)ion<br>E)monocalcium