What is the most likely reason that nonmetals are electrical insulators?

Answers

Answer 1
Answer: Because they cant carry an electrical current so instead they hold it. Holding it like quarantine type.
Answer 2
Answer:

Answer: the answer is B

Explanation:

Because they have to hold them to fill in their spaces.


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Need to lose one electron to form a stable octetb. alkali metals c. alkaline earth metals d. noble gases e. lanthanides
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A region that has a large number of atoms whose magnetic fields are lined up parallel to a magnet’s field isA. the magnetosphere. B. the magnetic declination. C. a magnetic domain. D. a ferromagnetic region.

A .35 m solution of weak acid, HX, has a h+ of 4.15×10^-3. what is the value of ka for this acid

Answers

Ka has the formula:

Ka = [H+] [X-] / [HX]

We have the following given:
[H+] = 4.15x10^-3
[HX] = 0.35

Since the acid dissociates in a ratio of 1 [H+] to 1 X,
[H+] = [X-]

Plugging in the values,
Ka = (4.15x10^-3)(4.15x10-3) / 0.35
Ka = 4.92x10^-5

Which statement best describes how an ionic bond forms? a.The transfer of electrons forms strong bonds between ions.
b. The sharing of electrons forms strong bonds between ions.
c. The transfer of electrons results in attractive forces between molecules.
d.The sharing of electrons results in attractive forces between molecules.

Answers

The question says,'which statement best describes how an ionic bond forms. The correct option is A. Ionic bonds are formed as a result of complete transfer of electrovalence electrons from one atom to another. The atom that donate the electron become a positively charged ion while the atom that received the atom become a negatively charged ion.

The answer is (A) The transfer of electrons forms strong bonds between ions.

Ancient cyanobacteria released ______, which assisted in creating the atmosphere as we know it today. A. lead
B. oxygen
C. ore
D. hydrogen

Answers

Answer;

- Oxygen

-Ancient cyanobacteria released oxygen, which assisted in creating the atmosphere as we know it today.

Explanation;

-The oxygen atmosphere that we depend on was generated by numerous cyanobacteria during the Archaean and Proterozoic Eras.

-Cyanobacteria are aquatic and photosynthetic, meaning they live in the water, and can manufacture their own food. During the process of photosynthesis, energy from sunlight is used together with carbon (iv) oxide and water to form organic molecules that serve as nutrients for the organisms and also oxygen gas is released to the atmosphere.

Ancient cyanobacteria released oxygen
which assisted in creating the atmosphere as we know it today.


Which statement describes an intensive property of matter

Answers

An intensive property is a property that does not depend on the amount of the substance in a system being measured. Examples are density and color. The opposite is called extensive where the properties depends on the amount of a substance.


The Haber process can be used to produce ammonia (NH3) from hydrogen gas (H2) and nitrogen gas (N2). The balanced equation for this process is shown below. 3H2 N2 Right arrow. 2NH3 The molar mass of NH3 is 17. 03 g/mol. The molar mass of H2 is 2. 0158 g/mol. In a particular reaction, 0. 575 g of NH3 forms. What is the mass, in grams, of H2 that must have reacted, to the correct number of significant figures? 0. 1 0. 102 0. 10209 0. 1021.

Answers

Answer:

B

Explanation:

We are given that ammonia can be produced from hydrogen gas and nitrogen gas according to the equation:

\displaystyle 3\text{H$_2$} + \text{N$_2$} \longrightarrow 2\text{NH$_3$}

We want to determine the mass of hydrogen gas that must have reacted if 0.575 g of NH₃ was produced.

To do so, we can convert from grams of NH₃ to moles of NH₃, moles of NH₃ to moles of H₂, and moles of H₂ to grams of H₂.

We are given that the molar masses of NH₃ and H₂ are 17.03 g/mol and 2.0158 g/mol, respectively.

From the equation, we can see that two moles of NH₃ is produced from every three moles of H₂.

With the initial value, perform dimensional analysis:

\displaystyle \begin{aligned} 0.575\text{ g NH$_3$}& \cdot \frac{1\text{ mol NH$_3$}}{17.03\text{ g NH$_3$}} \cdot\frac{3\text{ mol H$_2$}}{2\text{ mol NH$_3$}} \cdot \frac{2.0158\text{ g H$_2$}}{1\text{ mol H$_2$}} \n \n & = 0.102\text{ g H$_2$}\end{aligned}

*Assuming 100% efficiency.

Our final answer should have three significant figures. (The first term has three, the second term has four (the one is exact), the third term is exact, and the fourth term has five. Hence, the product should have only three.)

In conclusion, our answer is B.

Which of the following is not produced by nuclear decay?A) Alpha particles
B) Beta particles
C) Gamma rays
D) Delta particles

Answers

The answer is D. Delta particles.

Currently, there are three main types of nuclear decay: alpha decay, beta decay, and gamma decay. All three involve the emission of certain radioactive particles from the nuclear decay of an unstable atom. These particles are the alpha particles, beta particles, gamma rays, and conversion electrons.