3 years ago

MARKING BRAINLIEST :)

Chemistry

1 answer:

Reil [10]3 years ago

3 0

Answer:

Explanation:

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2 main reasons why we have<br> seasons.

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Answer:

Tilt of a planet's axis and its orbit around the sun.

Explanation:

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3 years ago

What is the boiling point for water in degrees celsius?

soldier1979 [14.2K]

Answer:

<h2>100°C is the boiling point of water in degrees Celsius</h2>

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3 years ago

The tungsten- nuclide radioactively decays by alpha emission. Write a balanced nuclear chemical equation that describes this pro

Scrat [10]

Answer:

The solution to this question can be defined as follows:

Explanation:

The complete question is defined in the attached file.

$W^{180}_{74} \to He^{4}_{2} + Hf^{176}_{72}$

Here:

$W= Tungsten-180\\\\Hf =Hafnium\\\\He = \alpha \ particle\\\\$

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3 years ago

Arrange the following aqueous solutions, all at 25 ∘C, in order of decreasing acidity. 1 = most acidic; 4 = least acidic Rank fr

Akimi4 [234]

Answer:

1. 0.023 M H3O+.

2. pOH = 5.52.

3. pH=9.45

4. 0.0018 M OH-

Explanation:

Hello,

In this case, such order could be computed by means of the pH, the lower the pH the more acid the solution, thus:

1. 0.0018 M OH-:

$pOH=-log(0.018)=1.744\\pH=14-pOH=12.2$

2. 0.023 M H3O+

$pH=-log(0.023)=1.64$

3. pH=9.45

$pH=14-5.52=8.48$

Therefore the order is

1. 0.023 M H3O+.

2. pOH = 5.52.

3. pH=9.45

4. 0.0018 M OH-

Best regards.

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3 years ago

The brown solid that formed is zinc copper oxygen iron

horsena [70]

Answer: Copper

Explanation:

Just took it on Edgen

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4 years ago