Someone please answer this in like 40 minutes
Before it’s due. Explain the answer too

Someone Please Answer This In Like 40 MinutesBefore Its Due. Explain The Answer Too

Answers

Answer 1

Answer:

kkkwkisa

Explanation:

wulaoaiq8qiIq8qiaik


Related Questions

What is the molarity of a solution in which 35 mole of AgNO3 is dissolved in 5 L of solution?

Answers

Answer:

23

Explanation:

Answer:

0.118m

Explanation:

Changes in thermal energy provide evidence that a chemical reaction
has occurred. Which of the following BEST describes a chemical reaction
in which energy is released?
Select one:
Exothermic reaction.
Reversible reaction
Physical reaction
Endothermic reaction.

Answers

Answer:

Exothermic reaction

Explanation:

Exothermic reaction is a reaction in which energy is evolved from the reaction to the surroundings

Molar Concentration of H2O+ lons
in Four Solutions
Solution Molar Concentration
of H3O+ lon
(M)
A 0.1
B 0.01
с 0.001
D I’m 0.0001
Which solution has the highest pH?

Answers

Answer:

d

Explanation:

because it’s moving the most spots to the left

The acidity or alkalinity of a solution depends upon its hydronium ion concentration and hydroxide ion concentration. Here among the given solutions, the solution D has the highest pH. The correct option is D.

What is pH?

The pH of a solution is defined as the negative logarithm to the base 10 of the value of the hydronium ion concentration in moles per litre. The pH scale is introduced by the scientist Sorensen. It is more easy to express the concentration of H₃O⁺ using this method.

The equation used to calculate the pH of the solution is given as:

pH = -log[H₃O⁺]

For 0.1 M

pH = -log[0.1] = 1

For 0.01 M

pH = -log[0.01] = 2

For 0.001 M

pH =  -log[0.001] = 3

For 0.0001 M

pH =  -log[0.0001] = 4

So solution D has the highest pH which is 4.

Thus the correct option is D.

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the more massive an object is, the more

Answers

Answer:

it have more more mass, gravitational potential energy

Explanation:

It will have more mass and gravitational pull

What is the temperature in kelvin of a gas if it is allowed to expand from 1.50 L to 4.50 L? The initial temperature is 10.0°C and pressure is constant throughout the change.
Which equation should you use?

StartFraction V subscript 1 over T subscript 1 EndFraction equals StartFraction V subscript 2 over T subscript 2 EndFraction.

T subscript 2 equals StartFraction V subscript 1 over V subscript 2 EndFraction T subscript 1.

T subscript 2 equals StartFraction V subscript 2 over V subscript 1 EndFraction T subscript 1.

Answers

Answer:

first question is the third option and the second question is 849K.

Explanation:

Answer:

third option

849K

Explanation:

I gotta pick 4 last question to pass :,) pls help:>
whoever answers first will be marked brainliest unu​

Answers

Answer:

Explanation:

heat up the solvent

increse the pressurre of the mixture

add more solute

agitate

What is the most common oxidation number for group 3 on the periodic table?

Answers

Answer:

español

Un elemento del grupo 3 es un elemento situado dentro de la tabla periódica en el grupo 3. Los átomos de estos elementos tienen gran tendencia a oxidarse y son muy reactivos, predominando el estado de oxidación +3. Presentan propiedades muy similares al aluminio. Dan lugar a iones incoloros.

ingles

An element of group 3 is an element located within the periodic table in group 3. The atoms of these elements have a great tendency to oxidize and are very reactive, with the +3 oxidation state predominant. They have properties very similar to aluminum. They give rise to colorless ions.

Explanation:

ingles

Group -> 3

Group -> 3Period

Group -> 3Period4 21

Group -> 3Period4 21Sc

Group -> 3Period4 21Sc5 39

Group -> 3Period4 21Sc5 39Y

Group -> 3Period4 21Sc5 39Y6 57

Group -> 3Period4 21Sc5 39Y6 57The

Group -> 3Period4 21Sc5 39Y6 57The7 89

Group -> 3Period4 21Sc5 39Y6 57The7 89Ac

español

Grupo -> 3

Grupo -> 3Periodo

Grupo -> 3Periodo4 21

Grupo -> 3Periodo4 21Sc

Grupo -> 3Periodo4 21Sc5 39

Grupo -> 3Periodo4 21Sc5 39Y

Grupo -> 3Periodo4 21Sc5 39Y6 57

Grupo -> 3Periodo4 21Sc5 39Y6 57La

Grupo -> 3Periodo4 21Sc5 39Y6 57La7 89

Grupo -> 3Periodo4 21Sc5 39Y6 57La7 89Ac

NaCl + NH3 + CO2 + H20 NaHCO3 + NH4CI
Which Lewis electron-dot diagram correctly represents the reactant containing nitrogen in the equation?

Answers

Since its asking for just the reactant, you can ignore the whole left side. Now since its only asking for the reactant containing Nitrogen, you can ignore the NaHCO3 since it doesnt have nitrogen.
That leaves us with drawing the structure of NH4Cl.
This was a tough one for me to find, as I kept drawing Ammonia instead and couldnt figure out how to fit in the extra Hydrogen and Chlorine. Luckily, this Y!A answer explains it, its due to a hydrogen bond

Option (1) represents the Lewis electron-dot diagram correctly containing nitrogen in the equation.

Lewis Structure is a very simplified representation of the valence shell electrons in a molecule.  It is used to show how the electrons are arranged around individual atoms in a molecule. Electrons are shown as "dots" or for bonding electrons as a line between the two atoms.

Valence electrons are given by hydrogen atoms = [tex]1\times3=3[/tex]

Valence electrons are given by nitrogen atom = [tex]5\times1=5[/tex]

Total valence electrons = 3 + 5 = 8

So, the calculation above is shown only the first option. So, (1) Lewis electron-dot diagram correctly represents the reactant containing nitrogen in the equation.

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20 points to whoever can answer these 3 questions correctly

Answers

Answer:

1) A. NO

2) B. 4

3) D. 8

Explanation:

2. Each type of atom is called an element. Which part of the atom give the
atoms its Identity?

Answers

The smallest particle of an element which is indivisible and takes part is chemical reaction as a whole without division is called an atom.

the three fundamental particles that identify the atoms are protons, neutrons and electrons.

what is the mass of 0.75 mol of hydrogen sulfide

Answers

Answer:

25.56066

Explanation:

hope this helps !!!!!!! and sorry if it doesn't help

The answer is deffo 25.56066

Why aren't acid-base reactions considered redox reactions, even though they involve the transfer of hydrogen atoms?

Answers

Answer:   Acid/base and precipitation reactions almost always are NOT redox reactions. For redox to have happened, the number of electrons that an element has must change (i.e. its oxidation state must change). ... But the hydrogen ion never "has" any electron throughout the process and remains in a +1 oxidation state.

Explanation:

let me know if that helped...(☞゚ヮ゚)☞

Acid-base reaction is not a redox reaction, since the oxidation number remains unchanged in acid-base reaction.  

What is acid-base reaction?

An acid-base reaction is the chemical reaction that occur when acids and bases react together.

What is redox reaction?

Redox reaction is a reaction that involves the transfer of electrons between the atoms, ions, or molecules.

Acid-base reactions involve the transfer of hydrogen ions between reactants. Redox reactions involve a change in oxidation number for one or more reactant elements.

Redox reactions involve a change in oxidation number for one or more reactant elements.

Acid-base reactions involve a transfer of a hydrogen ion instead of an electron and the transfer of an H+ ion leaves the oxidation numbers unaffected.

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2Na(s) + Cl2(g) → 2NaCl(s)
Which of the following choices shows the correct Lewis electron-dot diagram for a molecule of chlorine, Cl2?

Answers

Answer: 2!

Explanation:

The best lewis structure for [tex]Cl_2[/tex] is in option 2.

Na or sodium is the cation in the reactant.

Cl or chlorine is the anion in the reactant side.

NaCl is the product of the reaction.

Lewis Structure is a very simplified representation of the valence shell electrons in a molecule.  It is used to show how the electrons are arranged around individual atoms in a molecule.  Electrons are shown as "dots" or for bonding electrons as a line between the two atoms.

Chlorine is a group VIIA element in the periodic table and contains seven electrons in its last shell.  

Valence electrons are given by chlorine atoms = [tex]7\times2=14[/tex]

Total valence electrons = 14

So, each of Cl is surrounded by three pairs of dots, connected by a single line. So, the best lewis structure for [tex]Cl_2[/tex] is in option 2.

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do you guys know what these are? im stuck

Answers

Answer:

See explanation

Explanation:

1) From the reaction equation;

2 moles of KClO3 yields 2 moles of KCl

Hence,

4 moles of KClO3 yields 4 * 2/2 = 4 moles of KCl

2) Given that from the reaction equation, we have;

Burning 3 * 6.02 * 10^23 molecules of oxygen yields 2 * 22.4 L of CO2

Hence,

7 * 10^25 molecules of oxygen yields 7 * 10^25 * 2 * 22.4 / 3 * 6.02 * 10^23

= 313.6 * 10^25/18.06 * 10^23

= 17.36 * 10^2

= 1736 L

Help plz pozlzlzksj help

Answers

Answer:

increase moles of gas inside

Explanation:

Answer:

Its ( C )- Decrease the temperature of the gas inside the basketball

Explanation:

To make sure the balloon doesn't inflate so much it bursts you should NOT completely inflate the balloons when you know the temperature will increase!

A mole of carbon has the same number of atoms as a mole of beryllium.
O True
False

Answers

Answer:

False.

Explanation:

Carbon = 12

Beryllium = 9

good luck, i hope this helps :)

The following dot plot represents the litter sizes of a random sample of labrador retrievers.



Calculate the mean, median, and mode for this set of data.
Calculate the range, interquartile range, and mean absolute deviation (rounded to the nearest hundredth) for this set of data. For the mean absolute deviation, do not round the mean.
Make two inferences about the litter size of labrador retrievers.

Answers

Answer:

12

Explanation:so the mean deviation is for the square and the square is for you so you keep the square and add it.

Answer:

1. mean: 7.78 median: 8 mode: 7

2. range: 9 interquartile range: 2 MAD: 4.5367

3. The range is about 4 times bigger than the interquartile range. The mean is around double the MAD.

Explanation:

balance the following equation FeC²+Cl². FeCl³​

Answers

Answer:

this equation is not proper see that where is the reactant.

Explanation:

give give a proper question and I will

if fecl2 + c2 gives a fecl3 where does the carbon compound go

Answer:

2FeCl2 + Cl2 → 2FeCl3

Explanation:

when combined the two substances together in the cup, the product can be described as a ____ or ____ (there are two possible answers . you just need to choose one )
1. white gas
2. white liquid
3. white solid

Answers

I am pretty sure it is white white liquid but if I’m not right I am so sorry


Two different gases are stored inseparate closed containers. If both gases have a temperature of 50°C, which
statement is true?

Answers

Answer:

Explanation:

there should be more showing than telling

if a sample of 4.50 moles of hydrogen gas was reacted with excess nitrogen, how many moles of ammonia gas would be produced?

Answers

Answer: 3.00

Explanation: got the answer from my teachers notes

According to stoichiometry, if a sample of 4.50 moles of hydrogen gas was reacted with excess nitrogen, 3 moles of ammonia gas would be produced.

What is stoichiometry?

Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is useful in balancing chemical reactions.In the given reaction 3 moles hydrogen gives 2 moles ammonia, thus, 4.5 moles of hydrogen will give, 4.5×2/3=3 moles.

Thus,  if a sample of 4.50 moles of hydrogen gas was reacted with excess nitrogen, 3 moles of ammonia gas would be produced.

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Which of the following is the ground state electrons configuration of the F ion

Answers

Answer:

That leaves us with: 1s2 2s2 2p6 And that is the electron configuration for F- , the Fluoride ion.

Explanation:

plz give brainliest

1. MnO₂ is an example of what type of bond?

a covalent
b ionic
c polyatomic ion

2. Cl is an example of a cation, anion, or polyatomic ion

a polyatomic ion
b anion
c cation

Answers

Answer:

1. covalent

2. polyatomic ion

Explanation:

:)

Answer:

1) b

2)c

Explanation:

For each of the following ionic bonding examples, show the transfer of electrons, the ions resulting with the charges and the final chemical formula of the compund.
Ba and O,
Al and O,
Mg and P,
Na and O,
Ca and Cl​

Answers

Answer:

BaO

Ba gives up two electrons and becomes Ba⁺²O takes two electron and becomes O⁻²

Al₂O₃

Mg₃P₂

Na₂O

CaCl₂

Which of the following diagrams represents a single
replacement reaction?

Answers

Explanation:

i think the answer is....b

The diagram that represents single replacement reaction is:

b.

Single replacement reaction:

This reaction is also known as displacement reaction. It is a reaction in which one element is substituted for another element in a compound. When a replacement reaction occurs, a new aqueous compound and a different pure element will be generated as products. For example:

[tex]2HCl(aq)+Zn(s)--->ZnCl_2(aq)+H_2(g)[/tex]

Thus, option b is correct.

Find more information about displacement reaction here:

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What is the charge on an electron?
-1
0
+1
+2

Answers

Answer:

he charge on an electron is -1. Explanation : Electron is a subatomic particle whose symbol is . The electrical charge on an electron is negative. The electron was discovered by the J.J. Thomson. The mass of an electron is . The charge on electron and proton is equal but opposite. Neutron has zero charge and proton has +1 charge.

Explanation:

-1 is the correct answer for your question.

What volume of ammonia (NH3) will react completely with 25.0 liters of O2? 4 NH3 + 3 O2 ---> 2 N2 + 6 H2O

Answers

Answer:

18,75 litres

Explanation:

4 NH3 + 3 O2 ---> 2 N2 + 6 H2O

n (NH3) : n (O2) = 4 : 3

<=>

V (NH3) : V (O2) = 4 : 3

Hence, V(O2) = 3 × V (NH3) ÷ 4 litres

V(O2) = 3 × 25.0 ÷ 4 litres

V(O2) = 75 ÷ 4 litres

V(O2) = 18,75 litres

If you have any questions, feel free to ask :)

What is the different things that we have and animals?

Answers

Answer:

the different things that we have and animals are.:

to gain emotional support.it acts as a real friend.for meat,flesh,milk and milk products, wool,etc.for transportation like horseto enjoy and play like with dolphins

Which row gives the correct order of reactivity of the four metals?
(look at the attached photo)

Answers

Answer:

D

Explanation:

Answer:

C) gold - zinc - magnesium - lithium

Can you help me please....

Answers

sorry the pic is blocked

Sorry I can’t see the picture
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