Multiple Choice
A distinct substance composed of two or more elements combined chemically in a definite proportion by mass is a
A) homogeneous mixture.
B) heterogeneous mixture.
C) solution.
D) compound.
Correct Answer:
Verified
Correct Answer:
Verified
Q8: Write the chemical formulas for the neutral
Q9: Which chemical symbol is properly written?<br>A)CA<br>B)Cu<br>C)CO<br>D)CL
Q10: The alkaline earth metals are in group<br>A)1A<br>B)2A<br>C)5A<br>D)7A
Q11: On the periodic table vertical columns contain
Q12: Differentiate between:<br>A.An atom and an ion<br>B.An atom
Q14: Which type of element has the following
Q15: Homogeneous mixtures of metals are called:<br>A)ions<br>B)alloys<br>C)anions<br>D)compounds
Q16: Which element is from a representative group?<br>A)Mn<br>B)Co<br>C)V<br>D)S
Q17: At room temperature the majority of metals
Q18: The sulfate group is SO<sub>4</sub><sup>-2</sup>.How many sulfate