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3 years ago

What are ionic compounds typically composed of?

Chemistry

2 answers:

Iteru [2.4K]3 years ago

6 0

Answer and explanation:

Ionic compounds are formed by elements with a considerable electronegativity difference. They are typically composed by an element of groups IA or IIA of the Periodic Table (with lower electronegativity, so it tends to lose electrons) and a other element of groups VIA or VIIA (with higher electronegativity, thus it tends to gain electrons). For example, KCl is formed by K (group IA), which loses one electron and forms the cation K⁺, and Cl (group VIIA) which gains the electron and forms the anion Cl⁻.

Mashcka [7]3 years ago

4 0

Ionic compounds are compound that contains ions held together by ionic bonds. They are made up of particles that are arranged in a repeating pattern. Ions are said to be packed in a regular crystalline structures in an arrangement with the least energy.

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The student repeated the experiment using a higher concentration of acid. The same volume of acid and the same mass of magnesium

Elena L [17]

Answer:

53 cm³

Explanation:

When the student used dilute sulfuric acid, the reaction was complete after 60 s, because no more hydrogen was formed in the next 10 s.

The reaction would go faster if the student used a more concentrated acid, but 53 cm³ of hydrogen is the most that would form.

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3 years ago

Three different sub-atomic particles are described below: Particle X: Uncharged Particle Y: Carries positive charge Particle Z:

bazaltina [42]

The statement which is true about the three sub atomic particles is

X is a neutron,Y is a protons and z is an electron

Explanation

Atom has three sub atomic particles,that is neutrons,protons and electrons.

Neutrons have no electric charge,protons are positively charged while electrons are negatively charged.
Both neutrons and proton are located in the nucleus while electrons are located outside the nucleus.
since electrons are located outside the nucleus they orbit around the nucleus.

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3 years ago

Read 2 more answers

If 24 grams of aluminum react with 30 grams of chlorine, how much aluminum chloride will be produced

Rina8888 [55]

Answer:

its 7 i do believe

Explanation:

8 0

3 years ago

Given the following equation,, how many moles of water will be produced when 12 moles of ethane (C2H6) are burned?

VARVARA [1.3K]

Answer: 36 mol H2O (l)

Explanation:

Let's use stoichiometry to solve this problem.

12 mol C2H6 * (6 mol H2O / 2 mol C2H6) = 36 mol H2O

Hope this helps!

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3 years ago

Which bag held the most vibrant beads?

Zolol [24]

Answer:

The bag with no sunscreen held the most vibrant beads.

Explanation:

SPF is the Sun Protection Factor. It indicates how long a person can stay out in the sun before his skin start burning. It is a factor that is multiplied by 15 minutes. SPF 30 means 30 times 15 = 450 minutes. SPF 70 means 70 times 15 = 1,050 minutes.

Thus, the bag covered in SPF 30 sunscreen will raise its temperature faster than the bag covered in SPF 70 sunscreen. And the bag with no sunscreen will raise its temperature faster than the other two.

The higher the temperature the more vibrant the particles that consititute the substances, thus, you conclude that the bag that held the most vibrant beads is the bag with no sunscreen.

Remember that the temperature is a measure of the kinetic energy:. The relation is: the higher the temperature the higher the kinetic energy.

Therefore, the more the particles vibrate, the higher the kinetic energy and the higher the temperature.

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3 years ago