3 years ago

Which statement best describes PH of pure water

1 answer:

3 0

The concentration of hydronium ions equals that to hydroxide ions the answer is A) pH is equal tot he negative log of hydrogen. the pH of water is 7 which equal to 10^-7 of H+ and OH- ions.

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Density is a derived unit of mass / volume.

lapo4ka [179]

Answer:

1kg/L

Explanation:

1.) convert grams to kilograms

1000g÷1000=1kg

2.)use formula to find density

$density = \frac{mass}{volume}$

= 1kg/1.0L

=1kg/L

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2 years ago

What is the molar mass of NaC2H302?

andrezito [222]

Answer:

82.0343 g/mol

Explanation:

Count each element and the number of atoms for each element. Add them all together. Use the periodic table.

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2 years ago

In which model are atoms are imagined as tiny balls?

kobusy [5.1K]

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Marat540 [252]

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Group 1 in the same place.

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Svetllana [295]

Answer:

B. Are fixed within electron orbitals

Explanation:

Electrons are found in the energy levels

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2 years ago