Answer: The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods
Answer: The density of the object is 1.10 g/ml
Explanation: Density of object = ?
Mass of object = 26.5 g
Volume of object = volume of water displaced = 24.1 ml
Putting values in above equation, we get:

Thus density of the object is 1.10 g/ml
Answer:

Explanation:
The formula for Mercury(II) Oxide is 
Balanced Equation: 
Stoichiometry: 
<u><em>Answer</em></u>
- Correct option is B. feel slippery.
<u><em>Explanation</em></u>
If solution has low pH (0-6) is acidic while with higher high pH (8-14) is basic.
<em>Properties of acid solution</em>
1. Sour taste
2. Turn blue litmus paper into red
3. gives off hydrogen gas when reacted with metal
<em>Properties of basic solution</em>
1. Bitter taste
2. Turn red litmus paper into blue
3. no reactions with metal
4. Feel slippery
Answer:
0.354 molal
Explanation:
The molarity (M) or the concentration of a solution is defined as the number of moles of a compound in the solution per liter of solution (mol/L), whereas molality, is defined as the number of moles of a compound in the solution per kg of the compound (mol/kg).
Given that the density of the solution is 1.202 g/mL, which is equivalent to 1.202 kg/L. Since the prefix mili- denotes a factor of one thousandth (
) and kilo- denotes a factor of one thousand (
),
.
To calculate the corresponding molality of the solution, the formula
is used.
Therefore,
