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frutty [35]
3 years ago
6

This is a material that transmits most of the light that strikes to pass through and only a small amount of light is reflected o

r absorbed
Chemistry
1 answer:
inn [45]3 years ago
7 0

Answer:

Optically Transparent

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The sphere is the layer of the earth that contains a mixture of gases
jasenka [17]
Omoze layer I know this

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3 years ago
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A 0.595 g sample of a metal, M, reacts completely with sulfuric acid according to the reaction M ( s ) + H 2 SO 4 ( aq ) ⟶ MSO 4
zalisa [80]

Answer:

molar mass M(s) = 65.326 g/mol

Explanation:

  • M(s) + H2SO4(aq) → MSO4(aq) + H2(g)

∴ VH2(g) = 231 mL = 0.231 L

∴ P atm = 1.0079 bar

∴ PvH2O(25°C) = 0.03167 bar

Graham´s law:

⇒ PH2(g) = P atm - PvH2O(25°C)

⇒ PH2(g) = 1.0079 bar - 0.03167 bar = 0.97623 bar = 0.9635 atm

∴ nH2(g) = PV/RT

⇒ nH2(g) = ((0.9635 atm)(0.231 L))/((0.082 atmL/Kmol)(298 K))

⇒ nH2(g) = 9.1082 E-3 mol

⇒ n M(s) = ( 9.1082 E-3 mol H2(g) )(mol M(s)/mol H2(g))

⇒ n M(s) = 9.1082 E-3 mol

∴ molar mass M(s) [=] g/mol

⇒ molar mass M(s) =   (0.595 g) / (9.1082 E-3 mol)

⇒ molar mass M(s) = 65.326 g/mol

7 0
3 years ago
What is the change in enthalpy when 4.00 mol of sulfur trioxide decomposes to sulfur dioxide and oxygen gas? 250 2(g) + O2(g) ®
lidiya [134]

Answer: A. -396 kJ

Explanation:

The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance from its constituent elements, with all substances in their standard states.

2SO_2(g)+O_2 (g)\rightarrow 2SO_3(g)  \Delta H^0=198kJ

Reversing the reaction, changes the sign of \Delta H

2SO_3(g)\rightarrow 2SO_2(g)+O_2 (g)  \Delta H^0=-198kJ

On multiplying the reaction by 2, enthalpy gets multiplied by 2:

4SO_3(g)\rightarrow 4SO_2(g)+2O_2 (g)   \Delta H=2\times -198kJ=-396kJ

Thus the enthalpy change for the reaction 4SO_3(g)\rightarrow 4SO_2(g)+2O_2 (g)  is -396 kJ.

8 0
3 years ago
Use the drop-down menus to identify each organic reaction as an addition, substitution, elimination, or condensation reaction. (
Bezzdna [24]

A chemical reaction involves an interaction between two or more species to yield a product.

<h3>What is a chemical reaction?</h3>

A chemical reaction involves an interaction between two or more species to yield a product.

The following is the classification of the reactions based on type;

  • The first reaction shown in the attachment is a condensation reaction
  • The second reaction is an addition reaction
  • The third reaction is an elimination reaction
  • The fourth reaction is a substitution reaction

Learn more about reaction:brainly.com/question/9524025

#SPJ1

3 0
2 years ago
What does sodium do for chlorine
STALIN [3.7K]

<span> When a sodium atom transfers an electron to a chlorine atom, forming a sodium cation (Na+) and a chloride anion (Cl-), both ions have complete valence shells, and are energetically more stable</span>

<span>hope this helps</span>

6 0
3 years ago
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