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3 years ago

The bouncing of light off a surface is called

1 answer:

4 0

"The angle at which light hits a reflecting surface is called the angle of incidence, and the angle at which light bounces off a reflecting surface is called the angle of reflection."

You might be interested in

A solution containing equal numbers of hydrogen ions and hydroxide ions is

igor_vitrenko [27]

Answer:

The answer to your question is: Neutral

Explanation:

A neutral solution is a solution whose pH is 7.

That means that this solution has the same amount of H⁺ and OH⁻.

Examples of neutral solutions:

- distilled water

- sugar solution

- table salt

- cooking oil.

4 0

4 years ago

1. What is the International System of Units and its abbreviation?

GenaCL600 [577]

Answer:

modern form of the metric system

Explanation:

7 0

3 years ago

A metal M forms the oxide M2O. When 0.890 grams of M reacts with pure oxygen, 0.956 grams of M2O form. Write the balanced equati

Alla [95]

The molar mass of M is 0.225g/mol and the element M is Hydrogen

If a metal M combines with an oxygen element to form the oxide, $M_2O$ then the chemical reaction will be expressed as:

$4M + O_2 -> 2M_2O\\$

This shows that 4 moles of an unknown element M react with the oxygen element to produce the oxide $M_2O$

Given the following parameters

Mass of M = 0.890 grams

Mass of $M_2O$ = 0.956 grams

Get the molar mass of M:

Molar mass = Mass/number of moles

Molar mass = 0.890/4

Molar mass = 0.225g/mol

Hence the molar mass of M is 0.225g/mol and the element M is Hydrogen

Learn more here: brainly.com/question/6996520

5 0

2 years ago

Read 2 more answers

What is the percent composition of hydrogen if a sample is found to contain 7 grams of hydrogen, 32 grams of nitrogen, and 7 gra

nata0808 [166]

Answer: The percent composition of hydrogen in the sample is 15.22 %

Explanation:

We are given:

Mass of hydrogen = 7 grams

Mass of nitrogen = 32 grams

Mass of carbon = 7 grams

Total mass of the sample = 7 + 32 + 7 = 46 grams

To calculate the percentage composition of hydrogen in sample, we use the equation:

$\%\text{ composition of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Mass of sample}}\times 100$

Mass of sample = 46 g

Mass of hydrogen = 7 g

Putting values in above equation, we get:

$\%\text{ composition of hydrogen}=\frac{7g}{46g}\times 100=15.22\%$

Hence, the percent composition of hydrogen in the sample is 15.22 %

6 0

3 years ago

The ionization energy is the energy needed to remove an electron from an atom. In the bohr model of the hydrogen atom, this mean

Salsk061 [2.6K]

The ionization energy for a hydrogen atom in the n = 2 state is 328 kJ·mol⁻¹.

The first ionization energy of hydrogen is 1312.0 kJ·mol⁻¹.

Thus, H atoms in the n = 1 state have an energy of -1312.0 kJ·mol⁻¹ and an energy of 0 when n = ∞.

According to Bohr, Eₙ = k/n².

If n = 1, E₁= k/1² = k = -1312.0 kJ·mol⁻¹.

If n = 2, E₂ = k/2² = k/4 = (-1312.0 kJ·mol⁻¹)/4 = -328 kJ·mol⁻¹

∴ The ionization energy from n = 2 is 328 kJ·mol⁻¹ .

6 0

3 years ago