Answer: The metalloids are a group of elements in the periodic table. They are located to the right of the post-transition metals and to the left of the non-metals. Metalloids have some properties in common with metals and some in common with non-metals.

Explanation:

3 0

2 years ago

A balloon originally had a volume of 4.39 L at 44C and a pressure of 729 torr to what temperature must the balloon be cooled

VMariaS [17]

The new temperature : 11.56 °C

<h3>Further explanation </h3>

Boyle's law and Gay Lussac's law

$\tt \dfrac{P_1.V_1}{T_1}=\dfrac{P_2.V_2}{T_2}$

P1 = initial gas pressure (N/m² or Pa)

V1 = initial gas volume (m³)

P2 = final gas pressure

V2 = final gas volume

T1 = initial gas temperature (K)

T2 = final gas temperature

V₁=4.39 L

T₁=44+273=317 K

P₁ = 729 torr = 0,959211 atm

V₂=3.78 L

P₂= 1 atm

$\tt \dfrac{0.959211\times 4.39}{317}=\dfrac{1\times 3.78}{T_2}\\\\T_2=\dfrac{1\times 3.78\times 317}{0.959211\times 4.39}\\\\T_2=284.559~K=11.56~C$

3 0

3 years ago

5 Examples of simple salts

kolbaska11 [484]

<h3>Five Examples of Salts </h3>

Sodium Chloride.
Sodium chloride (NaCl) is the most common type of salt in our lives.
Potassium Dichromate. •
Potassium dichromate (K2Cr2O7) is an orange-colored salt composed of potassium, chromium and oxygen.
Calcium Chloride.
Sodium Bisulfate.
Copper Sulfate.

3 0

1 year ago

How many moles are in NaOH?

CaHeK987 [17]

1 mole consist of 6.022 ×10 ²³

Therefore in NaOH = 6.022 ×10 ²³ moles of NaOH

6 0

3 years ago

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