All categories

3 years ago

(WILL MARK AS BRAINLIEST!)

Chemistry

1 answer:

nekit [7.7K]3 years ago

3 0

Answer:

Explanation:

As one moves down the vertical groupings of elements on the periodic table, it is evident that new shells are being added from top to down.

An atomic orbital is the region of space surrounding the nucleus where there is a high probability of finding an electron.

Down a group, the atomic radius increases as more shells are added to an atom.

You might be interested in

Which of the following describes the bond between nitrogen atoms in an N, molecule? (1) 2 electrons are shared (2) 4 electrons a

uysha [10]

Explanation:

(3) 6 electrons are shared.

7 0

3 years ago

When 0.49 g of a molecular compound was dissolved in 20.00 g of cyclohexane, the freezing point of the solution was lowered by 3

IRISSAK [1]

Answer: The molecular mass of this compound is 131 g/mol

Explanation:

Depression in freezing point:

$\Delta T_f=i\times k_f\times \frac{w_2\times 1000}{M_2\times w_1}$

where,

$\Delta T_f$ = depression in freezing point = $3.9^oC$

$k_f$ = freezing point constant = $20.8^0C/m$

m = molality

i = Van't Hoff factor = 1 (for non-electrolyte)

$w_2$ = mass of solute = 0.49 g

$w_1$ = mass of solvent (cyclohexane) = 20.00 g

$M_2$ = molar mass of solute = ?

Now put all the given values in the above formula, we get:

$(3.9)^oC=1\times (20.8^oC/m)\times \frac{(0.49g)\times 1000}{M_2\times (20.00g)}$

$M_2=131g/mol$

Therefore, the molar mass of solute is 131 g/mol

7 0

3 years ago

jenny dissolves as much salt as she can in 100mL of room temperature water. she learned in class that less salt will dissolve in

Slav-nsk [51]

Answer:

if ice is added more salt can be dissolved ...........

5 0

3 years ago

Read 2 more answers

Why is the current model of the atom considered to be most accurate

olga_2 [115]

Answer:

It is the most recent idea of the atom and it is proved to be true

Explanation:

7 0

3 years ago

Is it appropriate to flush chemicals down the sink

lyudmila [28]

No. That could cause damage to the sink as well as the pipes. It could also create toxic gases that could kill you or others.

6 0

3 years ago