All categories

3 years ago

Predict whether each of the following oxides is ionic or molecular: SnO2, Al2O3, CO2, Li2O, Fe2O3, H2O

Chemistry

2 answers:

Murljashka [212]3 years ago

8 0

Answer:

SnO2, Fe2O3,Al2O3,Li2O- ionic

CO2,H2O- molecular

Explanation:

Ionic oxides are formed between oxygen and a metal. The bonds of oxygen to nonmetallic elements often lead to the formation of molecular oxides as seen above.

KatRina [158]3 years ago

3 0

Answer:

Explanation:

Ionic compounds are formed by combining a metal and a nonmetal.

Molecular compounds are formed by two or more nonmetals.

You might be interested in

5. An element whose highest occupied s sublevel and a nearby d sublevel contain electrons

Mumz [18]

Answer:

Transition Element

Explanation:

Transition elements are defined as those elements which can form at least one stable ion and has partially filled d-orbitals. They are also characterized by forming complex compounds and having different oxidation states for a single metal element.

Transition metals are present between the metals and the non metals in the periodic table occupying groups from 3 to 12. There general electronic configuration is as follow,

(n-1)d ¹⁻¹⁰ns ¹⁻²

The general configuration shows that for a given metal, the d sublevel will be in lower energy level as compared to corresponding s sublevel. For example,

Scandium is present in fourth period hence, its s sublevel is present in 4rth energy level so its d sublevel will be present in 3rd energy level respectively.

Hence, we can conclude that for transition metals the electron are present in highest occupied s sublevel and a nearby d sublevel .

5 0

3 years ago

Aluminum reacts with a certain nonmetallic element to form a compound with the general formula AlX. Element X is a diatomic gas

Sergio039 [100]

Answer:

It's nitrogen

Explanation:

cuz it has valence 3 and a diatomic gas at room temperature

5 0

3 years ago

The temperature of a sample of iron with a mass of 10.0 g changed from 50.4°C to 25.0°C with the release of 47 calories of heat.

sleet_krkn [62]

This would be concidered a chemical reaction.

6 0

4 years ago

Explain what happens in the reaction between sodium hydroxide and hydrochloric acid.Explain how protons are donated and accepted

Artyom0805 [142]

Answer:

Hydrochloric acid and sodium hydroxide interact, resulting in salt and a release of heat. As we can see, the result of the interaction of two highly aggressive compounds is table salt and water – compounds that are ultimately harmless, even beneficial, to human beings.

2) An acid is a substance that donates protons (in the Brønsted-Lowry definition) or accepts a pair of valence electrons to form a bond (in the Lewis definition). A base is a substance that can accept protons or donate a pair of valence electrons to form a bond.A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids. A reaction between an acid and base is called a neutralization reaction.

Explanation:

Hope it helps you ✌️

If helped Mark me as Brainleist

Have a good night ahead ✌️

7 0

3 years ago

Which type of fermentation occurs in yeast?

otez555 [7]

Fermentation occur in yeast is alcoholic.

5 0

3 years ago