Multiple Choice
How many oxygen atoms are there in 4 formula units of Al2(CO3) 3?
A) 9
B) 24
C) 36
D) 13
E) 39
Correct Answer:
Verified
Correct Answer:
Verified
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
Q53: Name the following compounds:<br>-NH<sub>4</sub>NO<sub>3</sub>
Q55: The first scientist to show that atoms
Q56: According to the law of multiple proportions:<br>A)If
Q57: The formula for sodium dihydrogen phosphate is<br>A)NaH<sub>2</sub>PO<sub>4</sub><br>B)Na(HPO<sub>4</sub>)<sub>2</sub><br>C)NaHPO<sub>4</sub><br>D)Na<sub>2</sub>HPO<sub>4</sub><br>E)Na<sub>2</sub>H<sub>2</sub>PO<sub>4</sub>
Q58: The correct name for FeO is<br>A)iron oxide<br>B)iron(II)oxide<br>C)iron(III)oxide<br>D)iron
Q59: Which of the following are incorrectly paired?<br>A)Copper,Cu<br>B)Carbon,C<br>C)Cobalt,Co<br>D)Calcium,Ca<br>E)Cesium,Ce