CHEMISTRY HIGH SCHOOL

Which of the following compounds are ionic compounds?CaCl2

C6H12O6

MgO

Na2O

SiO2

Answers

Answer 1
Answer: ionic compounds are compounds with ionic bonds, given by the exchange of electrons between a cation (positive ion) and an anion (negative ion).

ionic compounds usually consist of a metallic element and a non-metallic element.

as such, cacl2, mgo, and na2o are ionic compounds. c6h12o6 and sio2 consists of non-metallic elements only, so they do not form ionic bonds.
Answer 2
Answer: re: which of the following compounds are ionic compounds?
CaCI2 is an ionic compound.
C6H12O6 is a covalent compound.
MgO is an ionic compound.
Na2O is an ionic compound.
SiO2 is a covalent compound.
hope this helps

Related Questions

Pls help i need the Formula how can you calculate the number of electrons present in a shell?​ pls help!!! will give brainliest
What would be the result if Earth's unique atmosphere did not exist?
Which question would most likely be studied by a physicist?A. Were there ever any living organisms on Mars? B. How can the forces on a space probe be controlled so it will land on Mars? O C. What type of substances make up the soil on Mars? O D. Should the government spend taxpayers' money to send space probes to Mars?
How many moles of chlorine gas would occupy a volume of 35.5 L at a pressure of 0.98 atm and a temperature of 373 K?
What subatomic particles have a charge? (pick all that apply)ProtonsNeutronsElectrons

What is the maximum number of orbitals in a p sublevel? a. 2
b. 3
c. 4
d. 5

Answers

Answer:

b. 3

Explanation:

Each level has its electrons distributed in different sub-levels, which can be of four types: s, p, d, f

In each sub-level, there is a certain number of orbitals that can contain a maximum of 2 electrons each.

For example, the sub-level s can only contain 2 electrons, therefore it has only one orbital.

The sub-level p can contain 6 electrons, and since each orbital can contain a maximum of 2 electrons it means that the sub-level p has 3 orbitals.
b.3 is what i believe from what i read

How many moles of NO3 are there in 6.2g

Answers

6.2 divided by the mass number of NO3 is 0.1 moles.

I need help with number 6

Answers

(d) greenhouse effect

It’s the greenhouse effect. Hope this helps!

From where does the nitrogen in the nitrogen cycle originate?a. root nodules of legumes
b. the atmosphere
c. decomposers
d. nitrifying bacteria

Answers

The correct answer is B. The nitrogen in the nitrogen cycle originate from the atmosphere. It forms approximately 78% of the Earth's atmosphere. However, this form is not usable because it is in its most stable form therefore unreactive. This nitrogen gas needs to be converted into nitrate compound for it to be usable. Then, the nitrogen cycle starts.

Answer:

B) the atmosphere

Explanation:

Which radioisotope has the fastest rate ofdecay?
(1) 14C
(2) 37Ca
(3) 53Fe
(4) 42K

Answers

The correct answer is 2. 37Ca.

The fastest rate of decay in radioisotope is 37Ca. Another name for radioisotope is radioactive of isotopes which are of given element.

The different number of neurons and the same number of protons are present on the same element with different isotopes. Radioisotopes are considered to have an unstable combination of neutrons and protons.
The correct answer to this question is (2) 37Ca . The radioisotope that has the fastest rate of decay is 37Ca. Radioisotope or also known as radioactive isotopes of a given element. Same number of protons but different number of neurons are present on different isotopes of the same element. They are considered as atoms that have unstable protons and neutrons combination.

What is the molarity of 1.5 liters of an aqueous solution that contains 52 grams of lithium fluoride, LiF, (gram-formula mass =26 grams/mole)?(1) 1.3 M (3) 3.0 M
(2) 2.0 M (4) 0.75 M

Answers

The answer is (1) 1.3 M. The first thing you need to do is to convert the unit of gram to mole. The mol number of LiF is 52/26=2 mol. Then using the volume to calculate the molarity: molarity=2/1.5=1.3 M.
Other Questions
If two gases are present in a container, the total pressure in the container is equal toa.the sum of the pressures that are exerted by each of the two gases. b.twice the sum of the pressures that are exerted by the individual gases. c.the sum of the pressures that each gas would exert if they occupied twice the volume. d.the sum of the pressures that each gas would exert if they occupied half the volume.
The element oxidized in the reaction described in PbO2 + 4HCl → 2H2O + PbCl2 + Cl2 is A. Pb. B. O. C. H. D. Cl.
A gas in a rigid container at 25°C has a pressure of 0.96 atm. A change in temperature causes the pressure to increase to 1.25 atm. What is the new temperature of the gas?a...–44.2°C b....32.6°C c....115°C d...388°C
Carbonic acid dissolves limestone and other rocks. this is an example of _____. acid erosion chemical weathering biological weathering chemical erosion