Which group on the periodic table is an atom with 5 valence electrons?

Answers

Answer 1

Answer: In the Nitrogen family

Explanation:

Other elements in the family are: phosphorus, arsenic, antimony, and bismuth.

Answer 2

Answer:

5A

Explanation:


Related Questions

Help pls thnk you!!!!

Answers

The amine here is the easiest to spot since there’s only one structure that has a nitrogen atom, which would be the first (the first structure is a primary amine).

The distinguishing functional group of an alcohol is the hydroxy group (—OH). Both the second and third structures have an —OH group, but the —OH in the third structure is part of a carboxyl group (—COOH or —C(=O)OH). A carboxyl group takes priority over hydroxy group. Thus, the second structure would be an alcohol and the third structure would be a carboxylic acid.

That leaves us with the fourth structure, a hydrocarbon with a halogen substitutent, or, aptly named, a halocarbon.

BRIANLIEST!!!!!!
Use the mass to calculate the number of moles in a 347.89 g samples of ammonium

Answers

Answer:

20.46 moles

Explanation:

1 mole of NH3 contains 17gm of NH3

so 347.89 gm of ammonia is in,

347.89/17 moles

=20.46 moles

NOTE. There should be ammonia instead of ammonium in question because ammonium is an ion not a compound.

How do you solve -8r=240

Answers

Answer:

You solve that dividing beach term by -8 and simplifying which for this answers will give you r=-30

Explanation:

Pls correct me if I’m wrong.

Hope this helps :)

If a substance melts at 20oC, what is its freezing point?

Answers

Answer:

It is difficult, if not impossible, to heat a solid above its melting point because the heat that ... in a solid are packed in a regular structure that is characteristic of that particular substance.

#carryONlearning

Plz help I need the answer now!! Which statement is best supported by the evidence on the map?
A. Oil is produced mostly in the southern part of Africa.
B. Gold is found in every country in Africa.
O
C. Iron ore is found mostly in northern Africa.
D. Each country in Africa has about the same amount of each natural
resource.

Answers

Answer:

I'd say C. You can eliminate the rest of the answers and get C. Most of the iron is found up North on the map.

Explanation:

What is the amount of diamine silver that can be formed when 10.00 g AgCl is mixed with 1.00 L of 0.100 M NH3?

Answers

The amount of diamine silver chloride = 8.87 g

Further explanation

Given

10 g AgCl

1.00 L of 0.100 M NH3

Required

the amount of diamine silver

Reaction

AgCl + 2 NH₃ → [Ag(NH₃)₂]Cl

mol AgCl :

= mass : MW

= 10 g : 143,32 g/mol

= 0.0698

mol NH₃ :

= M x V

= 0.1 x 1

= 0.1

NH₃ as a limiting reactant

mol [Ag(NH₃)₂]Cl based on NH₃ :

= 1/2 x mol NH₃

= 1/2 x 0.1

= 0.05

Mass diamine silver :

= 0.05 x  177.3822 g/mol

= 8.87 g

HELP HELP HELP HELP HELP HELP HELP HELP HELP

Answers

Answer:

3

Explanation:

I got this i am very smart

Answer:

The answer is 3) same mass more volume

Explanation:

Mass measures the amount of matter in a substance or an object.

Volume measures the amount of space that a substance or an object takes up.

Balance the following
Mn(NO2)2
+
BeCl2 →
Be(NO2)2 +
MnCl2

Answers

Answer:

Double Displacement (Metathesis)

Beryllium Chloride - BeCl2

Manganese(II) Chloride - MnCl2

Explanation:

Enter an equation of a chemical reaction and click 'Balance'. The answer will appear below

Always use the upper case for the first character in the element name and the lower case for the second character. Examples: Fe, Au, Co, Br, C, O, N, F.     Compare: Co - cobalt and CO - carbon monoxide

To enter an electron into a chemical equation use {-} or e

To enter an ion specify charge after the compound in curly brackets: {+3} or {3+} or {3}.

Example: Fe{3+} + I{-} = Fe{2+} + I2

Substitute immutable groups in chemical compounds to avoid ambiguity.

For instance equation C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced,

but PhC2H5 + O2 = PhOH + CO2 + H2O will

Compound states [like (s) (aq) or (g)] are not required.

If you do not know what products are enter reagents only and click 'Balance'. In many cases a complete equation will be suggested.

Reaction stoichiometry could be computed for a balanced equation. Enter either the number of moles or weight for one of the compounds to compute the rest.

Limiting reagent can be computed for a balanced equation by entering the number of moles or weight for all reagents.

The balanced equation for the given reaction is:

[tex]\rm Mn(NO_2)_2 + 2BeCl_2 \rightarrow 2Be(NO_2)_2 + MnCl_2[/tex]

In chemistry, a balanced equation is a representation of a chemical reaction that follows the law of mass conservation. It assures that on both sides of the equation, the total number of atoms of each element remains constant.

[tex]\rm Mn(NO_2)_2 + BeCl_2 \rightarrow Be(NO_2)_2 + MnCl_2[/tex]

Balance the metals:

[tex]\rm Mn(NO_2)_2 + BeCl_2 \rightarrow Be(NO_2)_2 + MnCl_2[/tex]

Balance the non-metal (chlorine):

[tex]\rm Mn(NO_2)_2 + BeCl_2 \rightarrow Be(NO_2)_2 + MnCl_2[/tex]

Balance the nitrogen:

[tex]\rm Mn(NO_2)_2 + BeCl_2 \rightarrow Be(NO_2)_2 + MnCl_2[/tex]

Balance the oxygen:

[tex]\rm Mn(NO_2)_2 + BeCl_2 \rightarrow Be(NO_2)_2 + MnCl_2[/tex]

Balancing all the atom

[tex]\rm Mn(NO_2)_2 + 2BeCl_2 \rightarrow 2Be(NO_2)_2 + MnCl_2[/tex]

The balanced equation is:

[tex]\rm Mn(NO_2)_2 + 2BeCl_2 \rightarrow 2Be(NO_2)_2 + MnCl_2[/tex]

To know more about balanced equation, here:

https://brainly.com/question/7181548

#SPJ6

explain how sand is form​

Answers

Answer:

Sand comes from many locations, sources, and environments. Sand forms when rocks break down from weathering and eroding over thousands and even millions of years. Rocks take time to decompose, especially quartz (silica) and feldspar .

Explanation:

What is the molecular formula of paradichlorobenzene that has a molar mass of 147.g/mol and an empirical formula of C3CIH2?

Answers

Answer:

the molecular formula of paradichlorobenzene is C6H4CL2


Magnesium bromide is prepared in a laboratory using the reaction below. Typically, the magnesium bromide is recoveted as a solid by heating way the remaining water
Mg(s) + 2 HB-(aq) - MgBrac) + H200)
If 0.940 mole of HBr in solution is added to 16.5 grams of Mgo in a beaker and then is heated until dry, what are the expected contents of the beaker?

Answers

Can you give more examples?

True or false? Covalent molecules are formed when non-metal atoms share electrons with other non-metal atoms.

Answers

Answer:

true

covalent bonds are between non metals and nonmetals. and they are sharing electrons.

Use the periodic table to determine the molar mass of each of the following elements. Use the correct number of significant figures.

Potassium (K):
g/mol
Osmium (Os):
g/mol
Manganese (Mn):
g/mol

Answers

Answer:

Potassium (K):   39.10 g/mol

Osmium (Os):   190.23 g/mol

Manganese (Mn):   54.94 g/mol

Explanation:

Just got it right on Edge 2021

The molar mass of the following elements are

Potassium (K): 39.10 g/mol

Osmium (Os): 190.23 g/mol

Manganese (Mn): 54.94 g/mol

What is molar mass?

The molar mass of a substance is grams of one mole of that substance.

It can be calculated by dividing the atomic weight of the element, and the number of atoms found in that element.

Manganese is a transition metal with the atomic number 25.

Potassium is an essential mineral that is an alkali metal and its atomic number is 19.

Osmium is also a transition metal whose atomic number is 76.

Thus, the molar mass of the elements are, Potassium (K): 39.10 g/mol

Osmium (Os): 190.23 g/mol

Manganese (Mn): 54.94 g/mol

Learn more about molar mass

https://brainly.com/question/12127540

Which of the following is an example of a ball of clay undergoing a physical change?
I. The ball is thrown into the air
II. The ball is broken into two separate halves
lll. The ball is rolled along the ground
lV. The ball is flattened into a pancake like shape

Answers

I’m pretty sure it’s II, because from what I learned, physical change is stuff similar to II, chemical change is an object that has fully change its appearance, like Baking cake

Answer:

II. The ball is broken into two separate halve. The ball is still a ball. It is just in a different form.

IV. This one is also correct because it is only changing the physical state of the ball. The ball is still a ball.

A chemist weighed out 2.9 g of nickel. Calculate the number of moles of nickel she weighed out. Be sure your answer has the correct number of significant digits.

Answers

Answer:moles = 2.9 g Ni × 1 mol Ni 58.69 g Ni = 0.0663 mol Ni

What is the percent composition of C4H10? (4 points)
44.6% C and 45.4% H
57.3% C and 42.7% H
82.7% C and 17.3% H
89.4% C and 10.6% H​

Answers

Answer:82.7% C and 17.3% H

Explanation:

C4 = 12.0107g/mol x 4 = 48.0428 g/mol

H10 = 1.00794 g/mol x 10 = 10.0794 g/mol

Molar Mass of Butane, C4H10 =  48.0428 g/mol + 10.0794 g/mol= 58.1222 g/mol

percent composition of Carbon is  = ( mass of carbon contained in butane / molar mass of Butane) x 100

=(48.0428 /58.1222) x 100% = 0.8265 x 100

=82.65% =82.7% of Carbon.

Percent composition of Hydrogen  = (mass of Hydrogen contained in Butane / molar mass of Butane )x 100  

( 10.0794/58.122 ) x 100% =0.1734 x 100

= 17.3% OF Hydrogen.

Answer:

C- 82.7% C and 17.3% H

Explanation:

I took the Quiz

If you have 90L of water, what is the volume?

Answers

Answer:

900

Explanation:

What is the molarity of the following solution? 3.48 mol in 4.1 L of solution

Answers

Answer:

molarity is moles/L so take the 3.48 and divide it by 4.1L

and get 0.848... and need to keep your answer to 2 digits as that is th emost precise measurement you have (the 4.1L)

so 0.85mol/L

Explanation:

what does kyle learn at the end

Answers

Answer:

Umm who's Kyle?

Explanation:

Answer:

his skills aren’t as valuable to the team as he thought

Explanation:

If the price of peaches increases, what can be expected?

More peaches will be sold.
Fewer peaches will be sold.
The number of peaches sold will be unaffected.
Peach orchards will produce less fruit.

Answers

Answer:

fewer peaches will be sold

Explanation:

if the price increases less people will want to buy it, but the orchards would still get money so they wouldnt be affected

Answer:

fewer peaches

Explanation:

Plant cells and animal cells were observed under a microscope. The characteristics of two cells are listed below.

Cell X: Has chloroplast
Cell Y: Does not have a cell wall

Which statement about the two cells is correct? (5 points)

a
Cell X has a cell membrane.

b
Cell X has a small vacuole.

c
Cell Y has a large vacuole.

d
Cell Y has chloroplast.

Answers

Answer:

The answer is B

Explanation:

ITs B

Answer:

Cell X has a cell membrane

Explanation:

I took the test and got it right.


A _____ is two or more substances that are together in the same place but are not chemically combined.

Answers

Answer:

Mixture

Explanation:

A mixture has two or more substances that are together in the same place but are not chemically combined .

HOPE THIS HELPS YOU;)


What is involved in creating genetically modified bacteria?
A. allowing them to reproduce freely
B. changing their food source
c. using biotechnology techniques
D. growing them on selected plants

Answers

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2
A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 x 10
Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.
What is the mass of 1 mole of bricks?

?
How many moles of bricks have a mass equal to the mass
of the Earth?

Answers

Answer:mass of 1mole of brick =  mass of 1 brick x avagadro number

= 4 kg x 6.022 x 10^23 bricks  = 2.4 x 10^24 kg

No. of moles of bricks have a mass equal to the mass of the earth

= mass of earth / mass of 1 mole of brick

= [ 6 x 10^27 ]  /  [ 2.4 x 10^24 ]

= 2.5 x 10^3

= 2500 moles

Explanation:

y = (x-16)2 A. Shift the graph of y = x2 down 16 units. B. Shift the graph of y= x2 right 16 units. C. Shift the graph of y = x2 left 16 units. D. Shift the graph of y = x2 up 16 units.

Answers

Answer:

Uhmm i think i dont know the sent r 6un Dury r in eyeing in d7ue

Be able to describe the relationship between Freedom of Movement and phase change.

Answers

Ion knoe Wdym by “be able to describ’ so ima put it in my own words idr lol:)

if you talm bout some kentic energy or sum ok but other Dan dat ion knoe tbh

I can explain how transferring kinetic energy in and out of a substance can cause a change

element A it's valance number is 3 and element B it's valance number is 6 make it compound​

Answers

Answer:

A2B

Explanation:

A = 3

B = 6

exchange valencies

A6B3

A2B

how many grams of ZrCl4 can be produced if 123 g of ZrSiO4 react with 85.0 g of Cl2?

Answers

Answer:

153.3 grams of ZrCl₄ are produced

Explanation:

The equation of the reaction is as follows:

ZrSiO₄ + Cl₂ ----> ZrCl₄ + SiO₂ + O₂

molar mass of ZrSiO₄ = (91 + 32 + 16 * 4) = 187.0 g/mol

molar mass of ZrCl₄ = (91 + 35.5 * 4) = 233.0 g/mol

molar mass of Cl₂ = (35.5 * 2) 71.0 g/mol

From the equation of reaction, 1 mole of ZrSiO₄ reacts with one mole of  Cl₂ to produce one mole of ZrCl₄

number of moles of ZrSiO₄ present in 123 g = 123/187 = 0.65 moles

number of moles of Cl₂ present in 85.0 g = 85.0/71.0 = 1.19 moles

therefore, ZrSiO₄ is the limiting reactant

123.0 g of ZrSiO₄ will react with excess Cl₂ to produce 123 * 233/187 grams of ZrCl₄ = 153.3 grams of ZrCl₄

Therefore, 153.3 grams of ZrCl₄ are produced

Question:
One of the properties we associate with diamonds is their luster. How would you define this
term?

Plz help?!

Answers

Answer:

luster means either sheen/glow or reflected light

Explanation:

luster is the appearance of mineral's surface in terms of light-reflective qualities

Alleles are different forms of ribosomes.
1 point
A. True
B. False

Answers

Answer:

true

Explanation:

i did the test

Answer: False

Explanation:

Other Questions
B. Re-write the paragraph below correcting the faults in the subject-verb agreement relationship in thesentences 5 MARKSIThe fat short man as well as his four children travel to the UK every three months. He often goes in thecompany of his business partners. This month however, either his family relations or his son are joining him onhis trip to America. As an astute and established business man, four years away from your friends and familyhave become usual for him. Neither of his twelve companies have ever been in trouble with the law and heensure that he is always right with the state and his clients. What would you say? I actually wanna know What is the slope (-2,0) and (1,-4) Help meh pls () please answer both questions below (PLEASE HELP) A person who studies the historical development of cultures is called a(n) ______1. Cultural Scientist2. Ethnohistorian3. Archeologist4. Geologist Elena mixes 5 cups of apple juice with with 2 cups of ginger ale to make punch for a party she wants to make 35 cups of punch how much apple juice does she need to buy? Wednesday: Solve for x (can't use decimals), must use the rules.Start by: What are the missing angles of this triangle?What in the picture hints on the answer above?X =16 One mole of a metallic oxide reacts with one mole of hydrogen to produce two moles of the pure metaland one mole of water. 5.00 g of the metallic oxide produces 2.32 g of the metal. What is the metallicoxide? (Use molar masses) Vain man, said she, that dost in vain assayA mortal thing so to immortalize;For I myself shall like to this decay,And eke my name be wiped out likewise.-Sonnet 75,"Edmund SpenserRead the second quatrain of Sonnet 75." Then,answer the questions.What is the best paraphrase of the first two lines of thquatrain?What is the central idea of the second quatrain? The ability to produce surviving offspring is called AQUATICS SCIENCE I need help please Rita paid $82 for 5 trees and 1 shrub. Lilly bought 2 trees and 1 shrub for $37. Find the cost per tree and the cost per shrub. what does the term supermajority mean?a. that the majority vote wins no matter what percentage approval. b. that there is a 2/3rd approval vote representing over 60% approval regular reflection is the reflection of light on a surface URGENT WILL GIVE BRAINLIEST PLZ HELPThe controller (money manager) for a small company puts some money in a bank account paying 3% per year. He uses some additional money, amounting to 1/3 the amount placed in the bank, to buy bonds paying 4% per year. With the balance of the funds, he buys a 9% certificate of deposit. The first year the investments bring a return of $785. If the total of the investments is $10,000 how much is invested at each rate? Briazil had the first airline True or False There are two types of joints. One is movable and the other is called what?flexiblemuscularimmovableoptional That tree is tall.Este rbol es alto.Ese rbol es alto. Beyonce is solving a system of equations: 2x 3y = -2 4x + y = 24She decides to use the elimination method to find the solution. She multiplies the second equation by 3 and adds it to the first equation to find 14x = 70, showing her that x = 5. Beyonce finds that y = 4. Step 3: 4x + y = 24 4(5) + y = 24 20 + y = 24 -20 -20 y = 4 Step 1: 3(4x + y = 24) 12x + 3y = 72 Step 2: 2x 3y = -2Solution: (5, 4) + 12x + 3y = 72 14x = 70 x = 5Thinking about this process, Beyonce says out loud, There are lots of ways I could go about solving this problem. I could do the method above or I could multiply the first equation by -2 and add the second.Step 3: 4x + y = 24 4x + 4 = 24 -4 -4 4x = 20 x = 5Step 1: -2(2x 3y = -2) -4x + 6y = 4Solution: (5, 4) Step 2: -4x + 6y = 4 + 4x + y = 24 7y= 28 y = 4I seem to find that there is only one solution to the two equations, but I wonder if I will get the same solution if I use a different method?If Beyonce uses a different method, would she get the same solution? Be sure to show work or explain your reasoning. In equilateral triangles STU: