2 years ago

What do you call all water on earth surface

Chemistry

1 answer:

kap26 [50]2 years ago

6 0

Answer:

Hydrosphere

Explanation:

Hydrosphere includes all water on the surface of the planet.

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2 years ago

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Shkiper50 [21]

Answer:

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Explanation:

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2 years ago

Which substances can act as an arrhenius acid in aqueous solution

My name is Ann [436]

HI acts as an arrhenius acid in solution. It will dissociate into H⁺ and I⁻ therefore being a proton donor. (HI is actually one of the 7 strong acids)
I hope this helps.

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2 years ago

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alina1380 [7]

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3 years ago

How many moles is 3.01 x 10 24 molecules of oxygen ( g)?

lys-0071 [83]

Answer:

5.00 moles O₂

General Formulas and Concepts:

Chemistry - Atomic Structure

Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

Step 1: Define

3.01 × 10²⁴ molecules O₂

Step 2: Convert

$3.01 \cdot 10^{24} \ mc \ O_2(\frac{1 \ mol \ O_2}{6.022 \cdot 10^{23} \ mc \ O_2} )$ = 4.99834 moles O₂

Step 3: Check

We are given 3 sig figs. Follow sig fig rules and round.

4.99834 moles O₂ ≈ 5.00 moles O₂

3 0

2 years ago