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hammer [34]
3 years ago
6

What element has larger ionization energy? A) Li or N. B) Kr or Ne

Chemistry
1 answer:
Liula [17]3 years ago
6 0
<span>a. Nitrogen
b. Neon
</span><span>
Remember ionization increases from bottom to top (Fr to H) and from left to right (H to He) </span>

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If you exhale 7.25×10 to the 24th power molecules of CO2. How many moles of CO3 do you exhale?
Assoli18 [71]
None   since CO3   does   not exist.
7 0
4 years ago
The combustion reaction described in part (b) occurred in a closed room containing 5.56 10g of air
ziro4ka [17]

Answer:

Explanation:

Combustion reaction is given below,

C₂H₅OH(l) + 3O₂(g) ⇒ 2CO₂(g) + 3H₂O(g)

Provided that such a combustion has a normal enthalpy,

ΔH°rxn = -1270 kJ/mol

That would be 1 mol reacting to release of ethanol,

⇒ -1270 kJ of heat

Now,

0.383 Ethanol mol responds to release or unlock,

(c) Determine the final temperature of the air in the room after the combustion.

Given that :

specific heat c = 1.005 J/(g. °C)

m = 5.56 ×10⁴ g

Using the relation:

q = mcΔT

- 486.34 =  5.56 ×10⁴  × 1.005 × ΔT

ΔT= (486.34 × 1000 )/5.56×10⁴  × 1.005

ΔT= 836.88 °C

ΔT= T₂ - T₁

T₂ =  ΔT +  T₁

T₂ = 836.88 °C + 21.7°C

T₂ = 858.58 °C

Therefore, the final temperature of the air in the room after combustion is 858.58 °C

4 0
3 years ago
Which of the following is made up of particles of matter?
nadezda [96]

Answer:

D

Explanation:

Everything in this world is made up of particles of matter

8 0
3 years ago
Which of the following best describes an ecosystem in a California tide pool?
frosja888 [35]

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8 0
2 years ago
What statement correctly describes gravity
Gre4nikov [31]

Answer:

gravitation

Explanation:

5 0
3 years ago
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