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vagabundo [1.1K]
4 years ago
5

For which substance does (triangle) Hf = 0

Chemistry
1 answer:
umka21 [38]4 years ago
7 0

Answer:

O3 ozone

Explanation:

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In the reaction below how would adding more of product C affect the equilibrium of the system? A+B arrows both ways C+D
Shalnov [3]

Answer:

1. The reaction will proceed backward, shifting the equilibrium position to the left.

2. The reaction will proceed forward, shifting the equilibrium position to the right.

3. Either add more of the products ( H2O or Cl2) or remove the reactant (HCl or O2)

Explanation:

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3 years ago
Name two liquid fuels obtained from petroleum
Ratling [72]

Answer:

Diesel and kerosene.

Hope it helps :)

8 0
3 years ago
Read 2 more answers
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NeTakaya
No, because boats and other mechanical vehicles can spill gas and oil into the freshwater. if the freshwater is scarce already, we should not contaminate it more by risking the gas and oil spills.
7 0
3 years ago
How can I tell how many electrons in each energy level? When my question states "third sublevel" does this mean sublevel P?
nikitadnepr [17]
Sorry for the delay! My internet is a bit bad.
P is the third sublevel. Each sublevel (the angular momentum quantum number), has its own number:
<span>s = 1, p =3, d = 5, f = 7</span>
The number of electrons for each is:
s-2
p-6
d-10
f-14
It's easier to just memorize these numbers, but the equation for determining the sublevel number is 2n (n = the principal quantum number). The principal quantum number is based on the period the element is in.
6 0
4 years ago
The mass of a 6.0 mL sample of kerosene is 4.92. The density of kerosene is
weqwewe [10]
4.92 grams / 6 mL = .82 grams / mL

<span>(A) 0.82 g/mL</span>
3 0
3 years ago
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