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3 years ago

How does sulfur’s number of valence electrons influence its behavior toward other atoms?

1 answer:

3 0

Generally, Sulfur will take on 2 electrons and make a -2 ion, unless it is in the presence of a highly electronegative atom like Oxygen then it can form a +6 ion.

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A 250mL sample of oxygen is collected over water at 30 C and 850 torr pressure. What is the pressure of the dry gas alone?

3241004551 [841]

Answer:

$p_O=818.2torr$

Explanation:

Hello there!

In this case, according to the given equation, it is possible to calculate the mass of oxygen by using the Dalton's law, considering that the total pressure is 850 torr and the vapor pressure of water at 30°C is 31.8 torr:

$P_T=p_O+p_{H_2O}$

Thus, we solve for the pressure of oxygen as follows:

$p_O=P_T-p_{H_2O}\\\\p_O=850torr-31.8torr\\\\p_O=818.2torr$

Best regards!

6 0

3 years ago

Explain what would be the best observation when sodium chloride and sodium sulphate solutions are mixed

docker41 [41]

Answer:

These two solutions react to form a white insoluble precipitate.

BaCl2+Na2SO4→2NaCl+BaSO4↓

This is a double displacement reaction as the two compounds exchange their ions to form two different compounds.

Explanation:

8 0

2 years ago

A sample of gas is held at 100oc at a volume of 20 L.if the volume is increased to 40 L what is the new temperature of the gas i

ElenaW [278]

Answer:

470 °C

Explanation:

This looks like a case where we can use Charles’ Law:

$\dfrac{V_{1}}{T_{1}} =\dfrac{V_{2}}{T_{2}}$

Data:

V₁ = 20 L; T₁ = 100 °C

V₂ = 40 L; T₂ = ?

Calculations:

(a) Convert the temperature to kelvins

T₁ = (100 + 273.15) K = 373.15 K

(b) Calculate the new temperature

$\begin{array}{rcl}\dfrac{V_{1}}{T_{1}}& =&\dfrac{V_{2}}{T_{2}}\\\\ \dfrac{\text{20 L}}{\text{373.15 K}} &=&\dfrac{\text{40 L}}{T_{2}}\\\\{\text{15 000 K}} & = & 20T_{2}\\T_{2} & = &\dfrac{\text{15 000 K}}{20 }\\\\T_{2} & = & \textbf{750 K}\\\end{array}$

Note: The answer can have only two significant figures because that is all you gave for the volumes.

(c) Convert the temperature to Celsius

T₂ = (750 – 273.15) °C = 470 °C

3 0

3 years ago

What is the parts of the Transverse wave and longitudinal wave

dexar [7]

Crest, trough, amplitude and wavelength

3 0

3 years ago

Please Help !! The weak base ionization constant (Kb) for CIO is equal to:

Zolol [24]

Answer:

k it I did I'd help ya

Explanation:

sirry

3 0

3 years ago