Chemistry High School

PHOTO ABOVE
Answer Choices:
-Sp
-Sp2
-Sp3
-Sp4

I don’t get this!

PHOTO ABOVE Answer Choices:-Sp-Sp2-Sp3-Sp4 I Dont Get This!

Answers

Answer 1

Answer:

By just counting sigma bond and lone pair in central atom , one can easily find hybridization.

CO2 sp

SO2 sp2

NH3 sp3

BCl3 sp2

Related Questions

help me, please, i need it

Answers

Answer:

I think the answer would be C.

Explanation:

Microwaves emit radiation onto the leftover food, meaning the heat transfers to it through radiation.

A 4.86 g piece of metal is placed in a graduated cylinder containing 15.5 mL of water the water level rose to 17.3 mL what is the density of the metal

Answers

Answer:

The answer is 2.70 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 4.86 g

volume = final volume of water - initial volume of water

volume = 17.3 - 15.5 = 1.8 mL

So we have

[tex]density = \frac{4.86}{1.80} \\ [/tex]

We have the final answer as

2.70 g/mL

Hope this helps you

Assume that an object has been placed in the pan of a triple beam balance. The
scales of the balance are shown below. What is the mass of the object?

Answers

Answer:

190.4 g

Explanation:

To obtain the mass of the object, we must be able to obtain the reading of the triple beam balance.

Thus, the reading of the balance can be obtained by simply adding the various values as indicated by the pointer in each scale.

This can be obtained as follow:

Scale 1 = 90 g

Scale 2 = 100 g

Scale 3 = 0.4 g

Reading of the balance = Scale 1 + Scale 2 + Scale 3

Reading of the balance = 90 + 100 + 0.4

Reading of the balance = 190.4 g

Thus, the mass of the object as indicated by the triple beam balance is 190.4 g.

Which processes contribute to the formation of chemical sedimentary rocks?

Answers

Answer: the answer is B: Minerals dissolve and crystallize! :D

Explanation: hope this helps!

Question 5 of 10
SO3 is an empirical formula for which of the following?
A. S04
B. S203
C. S402
D. S206

Answers

The answer is D. S2O6

Does the number of molecules change when a substance changes state?

Answers

Answer:

Molecules do't break up and reform when a substance boils and cools. Particles stay the same size and shape during state changes.

Explanation:

brainliest will be appreciated

In a system with 4 atoms and 1 lone pair, predict whether the lone pair will be in a B site or an A site? Explain.

Answers

Answer:

B

Explanation:

The compound corresponds to a molecule AX4E where A is the Central atom, X are the other atoms present and E is the lone pair of electrons.

The shape of this molecule is based on a trigonal bipyramid since the molecule contains five electron domains.

Since there are four bond pairs and one lone pair, the molecular geometry is see-saw with equatorial bond angle <120° and axial bond angle <90°.

For AX4E (five electron pairs), the lone pair should occupy an equatorial position instead of an axial position since the equatorial position has two neighboring electron pairs that are positioned at about 90° apart from each other and two other neighboring electron pairs that are positioned at 120° from each other. The axial position has 3 neighboring electron pairs positioned at 90° from each other and another neighboring electron pair positioned at 120°. Hence the equatorial position experiences lesser repulsion compared to the axial position.

Hence in the structure pictured in the question, position B is a preferred position for the lone pair instead of position A.

The molarity of 8 grams of an aqueous solution of sodium hydroxide in 2 liters of solution is what?​

Answers

Answer: 0.125

Explanation:

8g divided by 39.997. Then divide that answer by 2.

Answer:

0.1 M

Explanation:

#11- i will mark 5 stars, thanks, and mark brainliest just please help me

Answers

Answer:

what is the question????

what is the answer for that ,I need it ASAP !

Answers

Answer:

A molecule of the kind normally found in living systems.

Organic molecules are usually composed of carbon atoms in rings or long chains, to which are attached other atoms of such elements as hydrogen, oxygen, and nitrogen.

Explanation:

i'm really smart.


Which of the following is the correct name for N2S5?

Answers

Dinitrogen Pentasulfide

What are some of the Properties of Liquids.

Answers

Answer:

Liquids take on the shape of their container. The liquid state of matter is an intermediate phase between solid and gas. Like the particles of a solid, particles in a liquid are subject to intermolecular attraction; however, liquid particles have more space between them, so they are not fixed in position.

Explanation:

PLEASE HELP!!!!!
How much energy is needed to raise the temperature of 2.5 L of water from 20 C to 50 C? (anwer must be in Joules)

Answers

Answer:

8368 Joules

Explanation:

Is this isotope stable or radioactive?

Answers

Answer:

radioactive

Explanation:

becasue i said so. Periodt

Answer:

An unstable isotope emits some kind of radiation, that is it is radioactive.

Explanation:

(PLEASEE HELPPP) A topographic map of part of Arizona is shown below which of the labeled points on the map has the steepest slope?
A) 1
B) 3
C) 2
D) 4

Answers

Answer:

I think A is the answer Hope I'm right

A muffin has a mass of 100g and a volume of 500cm^3. What is the density of the muffin

Answers

Answer:

d = 0.2 g/cm³

General Formulas and Concepts:

Density = mass / volume

Explanation:

Step 1: Define

m = 100 g

V = 500 cm³

d = ?

Step 2: Find density

Substitute:                              d = 100 g/500 cm³Evaluate:                                 d = 1/5 g/cm³Evaluate:                                 d = 0.2 g/cm³

How are hypotheses different from theories?

Answers

Answer:

Explanation:

This is the Difference Between a Hypothesis and a Theory. In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data.

How did Moseley establish a more accurate periodic table?

Answers

He arranged the elements by atomic mass instead of atomic numbers. I might be wrong they have the answer on google as well it says. “by arranging the elements according to atomic mass instead of atomic number. by arranging the elements according to atomic number instead of atomic mass. by arranging the elements into horizontal periods. by arranging the elements into vertical groups.”

Why is creativity Important and construction scientific methods?
I

Answers

Explanation:

Sometimes it is necessary to put forth new theories to explain experimental results, Explanation:

Creativity is important to science because sometimes, it is necessary to put forth new theories to explain experimental results. Theories are explanation of scientific observations.

Answer: Without creativity, it would be difficult to come up with new methods to answer scientific questions, meaning we likely wouldn't learn anything new.​

Explanation: took the quiz

will ya'll help me, please

Answers

Answer:

Either A or D

But i think D

hope this helps =3

sorry if im wrong

Which element has a greater atomic radius Mg or Cl?

Answers

the answer is Cl (chlorine)

PLEASE HELP
An engineer is designing a tire for heavy machinery, which statement
describes the clearest constraint that applies to the solution?
A. It must cost the consumer less than $200 per tire.
B. It must function safely under a heavy load.
C. It must be designed so that it has an appealing appearance.
D. It must be affordable for consumers.

Answers

Answer: it’s A

Explanation:

Answer:

It's A

Explanation:

3 examples of substance that are soluble in water?

Answers

Answer:

salt, rocks, blah

Explanation:

Answer:

We call substances that dissolve in water soluble. Sugar and salt are examples of soluble substances. You'll need Transparent containers – test tubes or beakers. Water ( warm and cold ) Substances to try to dissolve eg. sugar, coffee, pepper, sand, flour, salt.

Explanation:

Hope this helps

HELP ME PLZ!ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Compound because it has two capital letters

A student wants to find the volume of a rock. the student starts with 25ml of water in their graduated cylinder that water level rises to 37ml. what is the volume of the rock?​

Answers

Answer:

12 ml

Explanation:

the answer will be calculated by subtracting 37 ml from 25 ml so ,

37 - 25

= 12 ml

I need help with 2, 3, and 4 please help i will give the brainliest

Answers

Answer:

2=2.28*10^5

3=3.98*10^3

4=5.76*10^3

many reactive chemicals are stored in containers filled with Argon gas for safekeeping what about Argon's atomic structure makes it safe to store reactive chemicals in?​

Answers

Answer:

Argon has 8 valence electrons making it non reactive.

Explanation:

Reactive chemicals are store in containers filled with Argon gas because the argon gas is non reactive. This is true because the argon gas has completely filled octet structure.

This can further be explained by writing the electronic configuration of argon.

The electronic configuration of argon is given below:

Ar (18) => 1s² 2s²2p⁶ 3s²3p⁶

Valence electron => 3s²3p⁶ = 2 + 6 = 8

From the above illustration, we can see that the outermost shell (i.e 3s²3p⁶) is having 8 electrons indicating that it is completely filled as the maximum number of electrons any shell can accommodate outside the first shell is 8 electrons. Thus, argon has 8 valence electrons ( i.e electrons in the outermost shell) and hence it is non reactive as the outermost shell is completely filled.

How do the scientists Mendeleev and Moseley differ on their arrangement for the periodic table? A) Their periodic table was arranged the same. B) Moseley arranged the elements based on atomic masses while Mendeleev arranged the elements based on atomic number. C) Moseley arranged the elements based on atomic numbers while Mendeleev arranged the elements based on atomic masses. D) Moseley arranged the elements based on the number of protons while Mendeleev arranged the elements based on x-ray frequency.

Answers

Answer:

C is correct

Explanation:

the person above me is also correct hope this helps

The key difference between Dmitri Mendeleev and Henry Moseley's periodic table arrangements lies in the fundamental basis of their organization: C) Moseley arranged the elements based on atomic numbers while Mendeleev arranged the elements based on atomic masses.

Dmitri Mendeleev (1869): Mendeleev's periodic table was the first successful attempt at organizing the elements. He arranged the elements in order of increasing atomic masses and grouped them based on their chemical properties. Mendeleev's periodic table also left gaps for elements that were yet to be discovered, predicting their properties based on the trends of the known elements.

Henry Moseley (1913): Moseley's contribution to the periodic table was the realization that the atomic number (number of protons in the nucleus of an atom) was a more fundamental property than atomic mass. Moseley proposed that the periodic table should be arranged based on increasing atomic numbers rather than atomic masses. This arrangement resulted in a more accurate and systematic organization of the elements.

Learn more about atomic masses from the link given below.

https://brainly.com/question/29117302

#SPJ6

what is a rule for determining the atomic mass of an atom or ion ?

Answers

Answer:

Mass = Number of neutrons + Atomic number (aka number of protons)

Explanation:

Which‌ ‌of‌ ‌the‌ ‌following‌ ‌best‌ ‌describes‌ ‌an‌ ‌electron?‌ ‌

A. It‌ ‌has‌ ‌no‌ ‌charge‌ ‌and‌ ‌about‌ ‌the‌ ‌same‌ ‌mass‌ ‌as‌ ‌a‌ ‌proton.‌ ‌

B. ‌It‌ ‌has‌ ‌a‌ ‌negative‌ ‌charge‌ ‌and‌ ‌much‌ ‌less‌ ‌mass‌ ‌than‌ ‌a‌ ‌proton.‌

C.‌It‌ ‌has‌ ‌a‌ ‌positive‌ ‌charge‌ ‌and‌ ‌much‌ ‌more‌ ‌mass‌ ‌than‌ ‌a‌ ‌neutron.‌ ‌



D.‌It‌ ‌has‌ ‌a‌ ‌negative‌ ‌charge‌ ‌and‌ ‌about‌ ‌the‌ ‌same‌ ‌mass‌ ‌as‌ ‌a‌ ‌neutron.‌

Answers

Answer:

It's D. because it has negative charge and same mass as neutrons

Other Questions
The most massive automobile to have been manufactured on a regular basiswas the Russian-made Zil-41047. If one of these cars was to move at just8.9 m/s, its momentum would be 2.67 x 10^4kg m/s. Use this informationto calculate the mass of a Zil-41047. WILL GIVE MORE POINTS IF YOU ANSWER ALL MY QUESTIONS CORRECTLY (500 points plus 10 for each other question)Every morning I lay on the floor in the front parlor watching her door. The blind was pulled down to within an inch of the sash so that I could not be seen. When she came out on the doorstep my heart leaped. I ran to the hall, seized my books and followed her. I kept her brown figure always in my eye and, when we came near the point at which our ways diverged, I quickened my pace and passed her. This happened morning after morning. I had never spoken to her, except for a few casual words, and yet her name was like a summons to all my foolish blood.Her image accompanied me even in places the most hostile to romance. 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