CHEMISTRY HIGH SCHOOL

The metalloid that has three valence electrons is?

Answers

Answer 1

Answer: The metalloid that has three valence electrons is Boron~

Answer 2

Answer:

Answer:

The metalloid that has three valence electrons is Boron~

Explanation:

Related Questions

During a test trial, the control and test group are both given a pill. To account for the effect patients may think the drug being tested is having just because they believe they're being treated, the control group is given a "sugar pill," which is called what?A) PlaceboB) DrugC) MedicineD) Screening Tool Ohp xD nvm, the answer is A !
Which of the following combinations will result in a reaction that is spontaneous at all temperatures?positive enthalpy change and positive entropy change positive enthalpy change and negative entropy change negative enthalpy change and positive entropy change negative enthalpy change and negative entropy change
Which type of reaction occurs when nonmetal atoms become negative nonmetal ions?A. oxidationB. reductionC. substitutionD. condensation
Which term identifies a type of nuclear reaction?(A) fermentation(B) reduction(C) deposition(D) fission
A solution was prepared by dissolving 0.42 mol hexane into 500g CCl4. What is the change in freezing point of this solution? The Kf for CCl4 is 30.0oC/m. The freezing point of CCl4 is -22.92 °C.

What is a covalent bond?

Answers

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding. (hope this helps.)

Answer:

Explanation:

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The least condensed state of matter is

Answers

The answer would be "Gas".

The arrangement of particles is least ordered in a sample ofa. NaCl(aq)
b. NaCl()
c. NaCl(g)
d. NaCl(s)

Answers

Answer:

The arrangement of particles is least ordered is a > c > b > d

Explanation:

Given that,

The arrangement of particles is least ordered in a sample of NaCl.

We know that,

The least ordered arrangement are.

The form of state of particle in least ordered.

So, The least ordered arrangement will be

aqua > gas > liquid > solid

The arrangement of particles is least ordered in a sample of NaCl

$NaCl(aq) > NaCl(g) > NaCl(l) > NaCl(s)$

Hence, The arrangement of particles is least ordered is a > c > b > d

when 200 grams of water cools from 50 c to 25 c the total amount of heat energy released by the water is?

Answers

Answer : The heat released by the eater is, $2.1* 10^4J$ [/tex]

Explanation :

Formula used :

$Q=m* c* \Delta T$

or,

$Q=m* c* (T_2-T_1)$

where,

Q = heat released = ?

m = mass of water = 200 g

c = specific heat of water = $4.184J/g^oC$

$T_1$ = initial temperature = $50^oC$

$T_2$ = final temperature = $25^oC$

Now put all the given value in the above formula, we get:

$Q=200g* 4.184J/g^oC* (25-50)^oC$

$Q=20920J=2.1* 10^4J$ [/tex]

Therefore, the heat released by the eater is, $2.1* 10^4J$ [/tex]

Specific Heat:
Heat Energy= Mass of substance X Specific Heat X Change in Temp.
1. change in temp |50-25| = 25
2. specific heat of Water(H2O) = cal/g (Celsius) 1.000
heat energy= 200g X 1.000 X 25
Heat energy = 5000cal

Which hybrid orbitals would be formed if one s orbital and three p orbitals combined? sp sp2 sp3 sp4

Answers

Answer: Four $sp^3$ hybridized orbitals will formed when one s-orbital and three p-orbitals combines.

Explanation:

When ever one s-orbital combines with three p-orbitals it gives four $sp^3$ hybridized orbitals.
In which there is 25% of s character and 75% of p character.
The shape of the $sp^3$ hybridized orbitals is Tetrahedral. As shown in image attached.

sp3
it's just adding the number of s and p together
example of sp3 hybridization = CH4
with 1 s orbital of H and 3 p orbital of C

An illegal drug stimulates the parasympathetic nervous system, causing the user to appear tranquilized. What could indicate to a paramedic whether or not the person took this drug?A. High blood pressure and drooling
B. Low blood pressure and drooling
C. High blood pressure and dry mouth
D. Low blood pressure and dry mouth

Answers

B. Low blood pressure and drooling. If the user is tranquilized, he would not be able to hinder the production of saliva, leading to drooling. And if the victim was tranquilized, his heart would slow down, not speed up, resulting in a lower blood pressure.

Other Questions

Unsaturated hydrocarbons react very slowly with bromine. true false

Which if the following questions can be answered by science?

The pH of a solution is 2.0. Which statement is correct? A)The pOH of the solution is 12.0. B)The concentration of OH- ions is 1.0 x 10-2 M. C)The concentration of H+ ions is 100.0 M. D)The pOH of the solution is 7.

What should be place in _C6H12O6(s) + _O2(g) mc018-1.jpg _CO2(g) + _H2O(l)