Using the models of the molecules below, (H2 and CH4) what does it mean for a molecule to be symmetrical?

Answers

Answer 1

Answer:

A molecule is symmetrical if it can be cut into two identical halves.

Explanation:

H2 can be written as H + H

CH4 is not a symmetrical molecule


Related Questions

Explain, in your own words, what volumic mass is

plss helpp

Answers

Answer:

I think that volumic mass is like weight of an object, or like the space it takes up??

Explanation:

Have A Wonderful Day !!

help me please with my science test questions 5 and 6​

Answers

Answer:

5. Element J has the highest atomic number

6. Elements G and L have the same number of electrons in their outermost shell.

Explanation:

The periodic table of elements is a table which shows the arrangement of the elements in the order of increasing atomic number. Starting from the topmost left-hand side of the table where the element with the least atomic number is placed, and going across the table from left to right and down to the lowest point to the right of the table, where the element with the highest atomic number is located, the atomic number of elements progressively increases.

Looking at the table, it can be seen that the element J is found at the lowest point to the right of the table. Therefore, element J has the highest atomic atomic number.

6. In the periodic table, elements are arranged into groups and periods. The groups are the columns while the periods are the rows. Elements in the same column or group have the same number of electrons in their outermost shell. Therefore, element G and L have the same number of electrons in their outermost shell.

How many atoms of each element in the compound 2(PO4)

Answers

Answer:

8 & 13

Explanation:

1. 55 grams of salt are added to 100 L of water to make a saline solution.
What is the g/L concentration of the aqueous solution?
Show your work!

Answers

Answer:

0.55g/L

Explanation:

Given parameters;

Mass of salt  = 55g

Volume of water  = 100L

Unknown:

g/L concentration  = ?

Solution:

To solve this problem, we must understand that concentration is the amount of solute per solution

 g/L concentration  = [tex]\frac{55}{100}[/tex]   = 0.55g/L

NEED NOW!!
How does this picture represent the levels of
organization inside of plants and animals? Write atleast 2-3 sentences.

Answers

Answer:

⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣧⣀⣀⣾⣿⣿⣿⣿

⣿⣿⣿⣿⣿⡏⠉⠛⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⣿

⣿⣿⣿⣿⣿⣿⠀⠀⠀⠈⠛⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠿⠛⠉⠁⠀⣿

⣿⣿⣿⣿⣿⣿⣧⡀⠀⠀⠀⠀⠙⠿⠿⠿⠻⠿⠿⠟⠿⠛⠉⠀⠀⠀⠀⠀⣸⣿

⣿⣿⣿⣿⣿⣿⣿⣷⣄⠀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣴⣿⣿

⣿⣿⣿⣿⣿⣿⣿⣿⣿⠏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠠⣴⣿⣿⣿⣿

⣿⣿⣿⣿⣿⣿⣿⣿⡟⠀⠀⢰⣹⡆⠀⠀⠀⠀⠀⠀⣭⣷⠀⠀⠀⠸⣿⣿⣿⣿

⣿⣿⣿⣿⣿⣿⣿⣿⠃⠀⠀⠈⠉⠀⠀⠤⠄⠀⠀⠀⠉⠁⠀⠀⠀⠀⢿⣿⣿⣿

⣿⣿⣿⣿⣿⣿⣿⣿⢾⣿⣷⠀⠀⠀⠀⡠⠤⢄⠀⠀⠀⠠⣿⣿⣷⠀⢸⣿⣿⣿

⣿⣿⣿⣿⣿⣿⣿⣿⡀⠉⠀⠀⠀⠀⠀⢄⠀⢀⠀⠀⠀⠀⠉⠉⠁⠀⠀⣿⣿⣿

⣿⣿⣿⣿⣿⣿⣿⣿⣧⠀⠀⠀⠀⠀⠀⠀⠈⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⣿⣿

⣿⣿⣿⣿⣿⣿⣿⣿⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⣿

Explanation:

The force applied to a pulley is called

Answers

Answer:

the effort

Explanation:

:)

Can compounds be broken down into the elements they are made of?

Answers

Answer:

yes, some can

Explanation:

because like salt an other compounds by being decomposed

Yes they can be not all the time but sometimes,helps it with weather including heat and freezing temperatures

A ________ contains paired statements that can be used to identify organisms. Domains _________ and ________ are made up of Prokaryotes

Answers

Answer:

b thats just what i do

Explanation:

Explanation:

A. taxonomic/dichotomous key

B.Domains Bacteria and Archaea are made up of prokaryotic cells.

Which element probably reacts most like bromine, Br?
A) Oxygen, O
B) Selenium, Se
C) Krypton, Kr
D) Chlorine, Cl

Answers

D) Chlorine, Cl. Hope that helped

Answer:

D) Chlorine, Cl

I was too afraid we wouldn't be let in if l corrected the man's pronunciation, but I said our name to myself, opening my mouth wide for the organ blast of the a, trilling my tongue for the drumroll of the r, All-vah-rrr-es! How could anyone get Elbures out of that orchestra of sound?

Which influence does Alvarez write about in this passage?

her family
her neighbors
her family’s heritage
her personal experience

Answers

Answer:

D. Her Personal experience.

D) her personal experience .......

What element of the compound caused the colors of the flames

Answers

Answer:

Flame colors are produced from the movement of the electrons in the metal ions present in the compounds. For example, a sodium ion in an unexcited state has the electron configuration [tex]1s^{2} 2s^{2} 2p^{6}[/tex].

Explanation:

What is Johann Dobereiner's contribution to the development of the periodic table?

Answers

he identified triads of elements that had similar properties. got your answer in quizlet, have a good day !


4.
Think and discuss: Why is there an attraction between the two ions in this chemical bond?

Answers

Answer:

These ions are attracted to each other due to its opposite charges. This force of attraction is called an ionic bond because it is formed by the attraction of two atoms with opposite charges.

Explanation:

LOL im answering this question for a gizmo assingment rn

There is an attraction between two ions in a bond because they are composed of opposite charges.

In science, we know that opposite charges attract while like charges repel according to the first law of electrostatics. Ionic bonds are composed of metal and non metal ions. The metal ions are positively charged while the nonmetal ions are negatively charged.

These oppositely charged ion pair constitute the ionic bond therefore,  there an attraction between the two ions in this chemical bond because they are unlike charges.

Learn more: https://brainly.com/question/2673886

A potted plant is placed under a grow lamp, which provides 4,200 J of energy to the plant and the soil over the course of an hour. The specific heat capacity of the soil is about 0.84 J/g° C and there are about 2,400 g of soil. How much does the temperature of the soil increase?

Answers

Answer:

Temperature increase = ΔT = 2.08 °C

Explanation:

Given data:

Energy absorbed by plant = 4200 J

Specific heat capacity of soil = 0.84 J/g°C

Mass of soil = 2400 g

How much temperature increase = ?

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

by putting values,

4200 J = 2400 g ×0.84 J/g°C × ΔT

4200 J = 2016 J/°C  × ΔT

ΔT = 4200 J  / 2016 J/°C

ΔT = 2.08 °C

how to calculate the mass of fraction of all elements in calcium carbonate
(CaCO3)​

Answers

Answer:

I have made it in above figure hope it helps

Mg(s) + HCl(aq) −→ MgCl2(aq) + H2(g).
What mass of HCl is consumed by the reaction of 2.28 mol of magnesium?
Answer in units of g

Answers

Answer:

166 g HCl

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Chemistry

Stoichiometry

Reading a Periodic TableBalancing EquationsUsing Dimensional AnalysisExplanation:

Step 1: Define

[RxN - Unbalanced] Mg (s) + HCl (aq) → MgCl₂ (aq) + H₂ (g)

[RxN - Balanced] Mg (s) + 2HCl (aq) → MgCl₂ (aq) + H₂ (g)

[Given] 2.28 mol Mg (s)

Step 2: Identify Conversions

[RxN] 1 mol Mg = 2 mol HCl

Molar Mass of H - 1.01 g/mol

Molar Mass of Cl - 35.45 g/mol

Molar Mass of HCl - 1.01 + 35.45 = 36.46 g/mol

Step 3: Stoichiometry

Set up:                               [tex]\displaystyle 2.28 \ mol \ Mg(\frac{2 \ mol \ HCl}{1 \ mol \ Mg})(\frac{36.46 \ g \ HCl}{1 \ mol \ HCl})[/tex]Multiply:                             [tex]\displaystyle 166.258 \ g \ HCl[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

166.258 g HCl ≈ 166 g HCl

To be effective, a certain drug must not drop below 15 mg in the body. A 120
mgs of that drug was administered to a patient. How much time will it take for
that drug to reach the 15 mg minimum level. The drug's half-life is 30 minutes.

Answers

Thus, it follows that after 4 to 5 half-lives, the plasma concentrations of a given drug will be below a clinically relevant concentration and thus will be considered eliminated. Conversely, the accumulation of a drug can reach a steady-state during an infusion

After what part of the cell cyle does the cell begin interphase?
A.anaphase
B.prophase
C.cytokinesis

Answers

Explanation:

The prefix inter- means between, reflecting that interphase takes place between one mitotic (M) phase and the next. Image of the cell cycle. Interphase is composed of the G1 phase (cell growth), followed by the S phase (DNA synthesis), followed by the G2 phase (cell growth).

I need done within 2 hours. Thanks alot.

Answers

Answer:

Independent Variable:The size of the ice cube  Dependent:The temperatureof the water      controlled:the amount of water

Place a thermometer in the water, put the ice cube in then when it melts =see the ending temperature

Explanation:

What is the product(s) of the reaction below?
2Al(s) + Fe2O3(s) ---> Al2O3(s) + 2Fe(s)
A. Solid aluminum oxide and solid iron
B. Solid aluminum
C. Saturated aluminum oxide and saturated iron
D. Iron(III) oxide and aluminum oxide

Answers

Answer:

A. Solid aluminum oxide and solid iron

Explanation:

The reaction equation is given as:

    2Al  +   Fe₂O₃  →   Al₂O₃   + 2Fe

The species on the left hand side are the reactants

Those on the right hand side of the expression are the products.

The products are:

Al₂O₃   and Fe

 These are solid aluminum oxide and solid iron

What happened when we made the predator(snake) population larger?
Sentence starter: The rabbit (prey) population...

Answers

Answer:

The rabbit prey population will decrease.

Explanation:

More predators are there to eat the prey

A student claims that a large percentage of water on Earth is immediately available to drink. Is he correct? Why or why not?

Answers

Answer:

No, the student is not correct. The earth may have a lot of water... but not every part of water is drinkable. Most water is filled with bacteria and or viruses making it not suitable to drink! :)

Explanation:

HOPE THIS HELPS! BRAINLIEST? :)

Part 1
Observe the image of sodium. List the properties you see.
Part 2
Observe the image of hydrogen chloride. List the properties you see.

Answers

Answer:

Observable properties of sodium from the image:

1. It's slivery-white solid

2. It's shiny and bright

3. Looks soft

4. Looks waxy

Observable properties of hydrogen chloride from the image:

1. It is a colorless liquid

2. It is transparent

Explanation:

Sodium is known to be a metal that is silvery-white and waxy in appearance. The metal is bright and shiny especially when it is cut. It can be cut with a knife due to it soft nature. It is reactive and has low melting point. It actually reacts with water to form sodium hydroxide.

Hydrogen chloride (known to be hydrochloric acid) is a transparent and colorless substance. It is used in manufacturing plastics, textile,  fertilizers, etc. The concentrated hydrogen chloride is very corrosive.

The above are what I can see from the image.

What does the GOES acronym stand for?
A. Geological Open Engineering System

B. Geostationary Opertational Environmental Satellite

C. Grandma Only Eats Spagetti

Answers

Answer:

B. Geostationary Operational Environmental Satellite

Explanation:

Hope this helps!

Answer:

B

Explanation:

I’m studying it for you!

An irregularly shaped stone was lowered into a graduated cylinder holding a volume of water equal to 2.0 mL. The height of the water rose to 7.0 mL. If the mass of the stone was 25 g, what was its density?

Answers

Answer:

Density = 5 g/mL

Explanation:

Given data:

Volume of water = 2.0 mL

Volume of water + stone = 7.0 mL

Mass of stone = 25 g

Density of stone = ?

Solution:

Volume of stone = (volume of water + stone) - volume of water

Volume of stone = 7.0 mL - 2.0 mL

Volume of stone = 5.0 mL

Density of stone = mass/ volume

Density = 25 g/ 5.0 mL

Density = 5 g/mL

Please help
If you know Spanish I’ll mark mark you as brainlister

Answers

section 5:

1. D

2.E

3.F

4.A

5. C

6. B

Answer:

5 Match each picture with a correct word or expression

1. el premio d.

2. la vuelta a Francia e.

3. los juegos Olímpicos f.

4. soy musculoso a.

5. hacemos ejercicio c.

6. metimos un gol b.

6 Translate the following sentences into spanish:

1. I like watching the olympic games

Me gusta ver los juegos Olímpicos

2. the pan American games are a very important competition

Los juegos Panamericanos son una competición muy importante

3. to stay fit it is good to follow a well balanced diet

Para mantenerse en forma es bueno seguir una dieta sana y equilibrada

4. to score a goal it is necessary to play on a team

Para marcar un gol es necesario jugar en equipo

5. The tour de France is the most famous cycling competition in the world

El Tour de Francia es la competición de ciclismo más famosa del mundo.

6. the world cup is the most popular sporting event in the world

La copa del mundo es el evento deportivo más popular del mundo

I highly recommend to read this carefully.

Help me (number 5).

Answers

Answer:

a. HF

Explanation:

Which of the above electron dot structures is wrong?

Be

B

Al

H

Ne

Answers

Answer:

Al

Explanation:

Aluminum (Al) is in the same group as Boron (B) so it should have three electrons or dots around it.

Hope that helps.

Answer:

Structre of Al is wrong

Means Al is right answer of the above question

Explanation:

Because valence shell of aluminum contains three electron not 5 elctrons

Correct structure of Al is given

Did Adam Jackson win by

Answers

Answer:

by a number

Explanation:

Answer:

Hm may you edit the question and put in the full question all it says is "Did Adam Jackson win by"

Explanation:

.

The pic is the question! Please help

Answers

I think it’s C because the stigma is on a female flower and the anthers are on a male flower which produces pollen into the air to land on the stigma on the female plants which produces new plants
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You currently purchase a part used in your production process from an outside supplier, and have decided to begin making this part in-house. You have two equipment options for moving production in-house: special-purpose equipment and general-purpose equipment. Cost information for these two options is as follows: ALTERNATIVE Special-Purpose Equipment General-Purpose Equipment FIXED COST $200,000 per year $50,000 per ye ar VARIABLE COST $15 per unit $20 per unit Use Scenario 2.6 to solve this mystery. At an annual requirement of 40,000 units, what does the company save per year by selecting the low-cost option? a) $40,000 b) $50,000 c) $150,000 d) $300,000 What is the solution to this system of equations? 5x + 2y= 29 x + 4y = 13 A x = 5, y = 3 B. x=2, y=5 C. X= 5, y = 2 D. x= 3, y = 2 Which best describes what is represented by images 1 and 2?Image 1 shows a polymer, and Image 2 shows a monomer.Image 1 shows a monomer, and Image 2 shows a polymer.Image 1 shows a macromolecule, and Image 2 shows a synthetic polymer.Image 1 shows a synthetic polymer, and Image 2 shows a macromolecule. Can someone help me please? Whats sounds can dogs hear that we cant ? Can u guys help me quick (write an expression) Find three consecutive odd integers such that the sum of the smallest and twice the second is 14 more than the third.Show your work What is the number model What caused America's isolationism in the 1930's? 4. A one-year membership in a video rental club costs $10. Members pay $1.25 per video rental. You spend $45 in one year. How many videos did you rent?how do u solve this???? What is the result of subtracting X^2-2x+3 from 3x^2+x-2 Hey did I do this right? Multiply (2 + 3i) with (3 4i) PLZ NEED HELP QUICK PLZ Identify and describe the three stages of a life cycle analysis. I dont understand this question , help? thanks. please help me!!!!!one month Ahmad rented 3 movies and 5 video games for a total of $42. The next Month he rented 9 movies and 7 video games for a total of $72 . find the rental cost for each movie in each video game A square field has a perimeter if 3.6km what is the length of one side in metres Safety standards require a pool to add 3 chlorine tablets to every 2,000 gallons of water. Today, the lifeguards at Park Pool added 8 chlorine tablets to their pool's 10,000 gallons of water.How does Park Pool's chlorine compare to the safety standards?Choose 1 answer:APark Pool has more chlorine than the safety standards require.BPark Pool has less chlorine than the safety standards require.CPark Pool has the right amount of chlorine. Is this statement true or false?The Republican Party was started by people who were in favor of the spread of slavery.truefalse