giving brainly if correct and explained​

Giving Brainly If Correct And Explained

Answers

Answer 1

Answer:

D.

Explanation:

A concentrated solution is one that has a lot of solute (the substance being dissolved) in the solvent (the substance doing the dissolving). When a solution is concentrated, it means it has a high ratio of solute to solvent, so the answer is D.

Hope this helps.


Related Questions

what makes matter change from one state to another?

Answers

Answer: Adding or removing energy from matter

Explanation:

Do you feel that this equation is currently following the law of conservation of mass?

N2 + H2 → NH

Answers

Answer:

N2 + H2 --> 2 NH

Explanation:

You need to add 2 to make it correct

Find the unit price: 12 eggs for $3. How much is the cost per (one) egg?.

Answers

it's 3 dollars per 12 eggs so 3/12

simplify 3/12 by dividing both numbers by 3 so you get 1/4

you should know what 1/4 of a dollar is

or think of it this way 12 eggs are 3 dollars so every 4 eggs is one dollar. divide 1 dollar by 4 eggs

Why are unbalanced equations NOT useful in
chemistry?

Answers

Answer:

If the numbers of each type of atom are different on the two sides of a chemical equationExplanation:

PLEASSE HELP gotta get the answers neowww, basically just match the letters with the things.

Answers

Answer:

North pole-A

South pole- F

Equator- E

Polar Easterlies-C

Prevailing Westerlies-D or B-not sure

Trade Winds-D or B-not sure

Name two elements that have the same properties as sodium (Na)

Answers

Answer: Any Alkali metal

Explanation:

T he cool thing about the periodic table is the way it is organized. You can find chemical with similar properties is just looking in the column they are in in to determine the answer. Since Na is in the first column, any of these answer can work:

Li, K, Rb, Cs, and Fr

In a covalent bond between identical atoms, the electrons are shared between the atoms. If the atoms are not identical, the electron distribution is so that the electrons are closer to one atom than the other. This type of bond is called a(n) covalent bond.

Answers

Answer:

If the atoms are not identical, the electron distribution is electrons are closer to one atom than the other. This type of bond is called a(n) covalent bond.

Explanation:

pls answer this it's due today​

Answers

Answer:

That's pretty easy,if you have a grasp of Elements, Compounds and their Symbols ans Molecular formula.

So, Let's get started!

Our reactions are as follows:

Sodium(Na) + Chlorine(Cl) ---> Sodium chloride(NaCl)

Think of a compound that has both Sodium and Chlorine and is very common.

Common salt — Sodium chloride!

Yeah, that's it! It has both Sodium and Chlorine in it's molecular formula. (NaCl)

Magnesium(Mg) + Oxygen(O2) ---> Magnesium oxide(MgO)

Now, we have to, somehow, get Magnesium oxide using Oxygen. The best way is: by reacting Magnesium with Oxygen.

Iron(Fe) + Sulfur(S) ---> Iron Sulfide(FeS)

Now, we have to get two reactants that react to form Iron Sulfide.

FeS contains only two elements in its formula and that are: Iron(Fe) and Sulfur(S).

So, the best way would be to react Iron(Fe) and Sulfur(S) and get Iron Sulfide (FeS)

Hydrogen(H2) + Oxygen(O2) ---> water(H2O)

You must know that water is H2O, that is, a compound of Hydrogen and Oxygen, the easiest way to get H2O as your product would be : by reacting Oxygen and Hydrogen.

a) sodium chloride (NaCl)
b) magnesium (Mg)
c) Iron (Fe) + Sulfur (S)
d) oxygen (O2)

Figure 2

Describe how a dog grows. Describe their mode of reproduction​

Answers

Explanation:

Although all puppies are officially considered adult dogs once they reach one year old, puppies continue to grow in height and size while their bones are still developing, which takes anywhere from 6 to 24 months. Their skeletal growth is what determines how tall they will become as adults.

How are osmosis and facilitated diffusion similar?

Answers

Answer:

I think it's is because during osmosis because when the cell duplicates in osmosis it divides into two smaller daughter cells; in diffusion there is a higher concentration near where it is but its getting smaller particles from where the source is

In a chemical change energy can be ___?
A. Created but not destroyed
B. Either created or destroyed
C. Destroyed but not created
D. Neither created nor destroyed

Answers

Answer:

chemical change energy can neither be created nor destroyed.

Explanation:

the rule of law of conversion states that energy can only be converted from said energy to another. it cannot be created and destroyed.

Answer:

D. Neither created nor destroyed

Explanation:

The law of conservation of energy states that energy is neither created nor destroyed.

5.27x10^45 molecules of h20 is how many moles

Answers

Answer:

6.02 × 10^23 molecules = 1 mole

5.27 × 10^45 molecules = x

x = 5.27 × 10^45/ 6.02 × 10^23 × 1

= 8.754 × 10^21 mol

I don't know if it's correct but based on the question that was the only way I saw how to work it out

HELPPPPP ASAP PLSSSS !!!!!!!!!

Answers

Answer:

maybe i can help for you where the question

2. Which substance will form a solution with water? (Select all that app
string
sand
sugar
salt

Answers

Answer:

sugar and salt, as they can dissolve in water. Sugar and salt have a high solubility in water. So, sugar and salt can form a solution with water.

Explanation:

Al + FeCl2 → Fe + AlCl3.

Answers

Answer:

Hope this helps :)

AlCl3 + Fe = Al + FeCl2

Chemical Equation Details aluminum chloride + iron = aluminum + iron(ii) chloride

[tex]\text{Balanced reaction:}\\\\2\text{Al} + 3\text{FeCl}_2 \longrightarrow 3\text{Fe} + 2\text{AlCl}_3[/tex]

I NEED MORE HELP ASAPP

Answers

1st one is gas
2nd one is lower I think (I’m not sure)
3rd one is increase
done! Your welcome

Answer:

1) Gas

2) Higher

3) Increases

4) Higher

Explanation:

i need help with this asap..
1. What has shininess
2.ability to change its shape

Answers

I think it's metal if its abt science

Answer:

i think metal or glass not sure but i think its metal

Explanation:

What does the law of conservation of matter state?
a Matter can be created, destroyed, and changed.
b Matter can be destroyed and created, but not changed.
c Matter can be changed, but not created or destroyed.
d Matter can be created and changed, but not destroyed.​

Answers

The answer is c. Matter can be changed, but not created or destroyed.

Compare sodium and silver before and after they are placed in water. Has a new substance been produced in each case?

Answers

Answer:

Sodium is placed in group 1 of the periodic table of Alkali metals, and has a valence shell with one electron, making them very reactive. When placed in water, it disperses heat and begins to ignite and burn (due to its very reactive nature), resulting compound is hydrogen gas (H2), and a very strong base (Sodium Hydroxide, NaOH) used for cleaning appliances and for neutralizing agents.

Silver is placed on the transitional metal section of the periodic table, not quite reactive but is the most conductible element on the planet, is malleable and ductile. Due to it being costly and its rarity, it's not relied on for computer parts or wires. Silver doesn't actually directly react with water in its liquid state. It does produce hydrogen gas and Silver Oxide when reacting with water vapour.

In short, Sodium and water create new products, while Silver and water (only in water's gaseous form) form different products.

What is the mass of 0. 513 mol Al2O3? Give your answer to the correct number of significant figures. (Molar mass of Al2O3 = 102. 0 g/mol) 0. 513 mol Al2O3 = g Al2O3.

Answers

The mass of a 0.513 mol of Al2O3 is 52.33g.

HOW TO CALCULATE MASS:

The mass of a substance can be calculated by multiplying the molar mass of the substance by its number of moles. That is;

mass of Al2O3 = no. of moles of Al2O3 × molar mass of Al2O3

According to this question, there are 0.513 moles of Al2O3.

Mass of Al2O3 = 0.513 × 102

Mass of Al2O3 = 52.33g

Therefore, the mass of a 0.513 mol of Al2O3 is 52.33g.

Learn more about mass calculations at: https://brainly.com/question/8101390?referrer=searchResults

how molecular structure affects solubility?

Answers

Answer:

The molecular structure affects solubility mainly biased on its polarity or bonded ions.

Explanation:

Polar molecules will better interact with the water molecules and will dissolve easier. Nonpolar molecules can dissolve if they are small enough, however they don't interact well with the polar molecules. Bonded ions, such as NaCl split into a cation Na and an anion Cl which the positive charge on the Na will be attracted to the oxygen, and the negatively charged Cl will be attracted to the positive Hydrogen.

**Remember this rule, like dissolves like, meaning nonpolar dissolves nonpolar and polar dissolves polar.

I hope this helps!

To find the number of neutrons in a atom, you subtract the number of_____ from the mass number.

Answers

You can simply subtract the atomic number from the mass number in order to find the number of neutrons.

Subtract the number of *protons* from the mass number

why does fluorine have the highest electronegativity

Answers

Answer:

Because it only needs one more electron to get to a full valence shell (8), so it really wants it and is pulling other electrons in. It also has to do with needing one more electron to fill the 2p shell. It is a small element which means its electrons are pulled tightly to the nucleus.

Hope this helps!

Explanation:

how long would it take to electroplate a flute with 28.3 g of silver (107.87 g/mol) at a constant current of 2.0 amps using AgNO3

Answers

It would take 211 hours to plate 28.3 g of silver on a flute.

The equation of the reaction;

Ag^+(aq) + e -----> Ag(s)

We know that 1 F of electricity is required to deposit 107.87 g of Ag. Also 1F = 96500 C

Now;

Since  107.87 g is deposited by 96500 C of electricity

28.3 g is deposited by  28.3 g ×  96500 C/ 107.87 g

= 25317 C

Also;

Q = It

I = current

t = time

25317 C =  2.0 amps × t

t = 25317 C /2.0 amps

t = 12658.5 seconds or 211 hours

Learn more about electrolysis: https://brainly.com/question/12054569

Answer:

It would take [tex]3.5hrs[/tex] to electroplate the flute

Explanation:

Electrolysis equation is:

[tex]Ag1+ + 1e- ------> Ag[/tex]

1 mol of Ag requires 1 mol of electron

1 mol of electron = 96485 C

So,

1 mol of Ag requires 96485 C

let us calculate mol of element deposited:

molar mass of Ag = [tex]107.87 g/mol[/tex]

number of mol of Ag, [tex]n = \frac{mass of Ag}{molar mass of Ag}[/tex]

[tex]n = \frac{28.3}{107.87}\\\\n = 0.2623 mol[/tex]

[tex]total charge = mol of element deposited * charge required for 1 mol\\\\total charge = 0.2623*9.649*10^4\\\\total charge = 2.531*10^4 C[/tex]

Therefore,

[tex]time = \frac{Q}{i}\\\\= \frac{2.531*10^4}{2}\\\\= 1.265*10^4 seconds\\\\= 3.515 hr[/tex]

For more information, visit

https://www.homeworklib.com/qaa/1142722/5-how-long-would-it-take-to-electroplate-a-flute

What is the formula for the compound?

Answers

Answer:

the correct answer is CO2 (the last one)

I think the answer is CO2, I hope that helps

help plz I don't understand the last 2 questions ​

Answers

Answer:

b) (i): 0.91 Amgstroms

(ii): 9.1 × 10^-11 Angstroms

(c): Volume = 20 Angstroms

Explanation:

• Let's first convert the units:

[tex]{ \rm{1 \:nanometre = 1 \times {10}^{ - 9} \: metres} } \\ { \rm{10 \: angstroms = 1 \times {10}^{ - 9} \: metres}} \\ { \rm{1 \: micrometer = 1 \times {10}^{ - 6} \: metres = 1000 \: nm}} \\ \\ { \rm{1 \: {nm}^{3} = 1000 \: {angstroms}^{3} }}[/tex]

Question (b)

(i)

[tex]{ \rm{radius = \frac{diameter}{2} }} \\ \\ { \rm{radius = \frac{0.182}{2} }} \\ \\ { \rm{radius = 0.091 \: nm}} \\ \\ { \mathfrak{ answer{ : { \rm{radius = (0.091 \times 10) \: angstroms}}}}} \\ \\ { \rm{radius = 0.91 \: angstroms}}[/tex]

(ii)

[tex]{ \rm{radius = 0.091 \: nm}} \\ \\ { \rm{radius = 0.091 \times( 1 \times {10}^{ - 9} ) \: metres}} \\ \\ { \rm{radius = 9.1 \times {10}^{ - 11} \: m }}[/tex]

(c)

[tex]{ \rm{volume = (0.5 \times 0.2) \: nm \times 0.0002 \: micrometer}} \\ \\ { \rm{volume = 0.5nm \times 0.2nm \times (0.0002 \times 1000)nm}} \\ \\ { \rm{volume = 0.5 \times 0.2 \times 0.2 \: nm {}^{3} }} \\ \\ { \rm{volume = 0.02 \: nm {}^{3} }} \\ \\ { \rm{volume = (1000 \times 0.02) \: angstroms {}^{3} }} \\ \\ { \rm{volume = 20 \: angstroms}}[/tex]

The DEA has designated five chemicals often found in spice as _____ controlled substances, making it illegal to sell, buy, or possess these chemicals.

Answers

Answer:

I'm pretty sure this doesn't really connect with chemistry much but the answer should be Schedule 1 as stated by the Drug enforcement agency.

Four students wrote down their descriptions of rotting.

Nick: Rotting is a chemical change that happens to fruit like strawberries or apples. Rotting happens slower when there is more heat.
Kevin: Rotting is a chemical change that happens to iron objects like nails. It causes iron objects to change color and texture.
Howie: Rotting is a physical change that happens to food like fruit. Rotting happens faster with increased heat and changes a fruits color and odor.
AJ: Rotting is a chemical change that affects food such as fruit. Rotting changes the fruits color and odor and happens faster with increased heat.
Which student had the best description of rotting?

Nick
Kevin
Howie
AJ

Answers

AJ but Kevin would also be right
Hope this helps

Answer:

Technically only AJ got it correct Howie got it wrong because rotting is a chemical not a physical change AJ  was correct becuase he knew what would make the fruit go faster so yes howie would have been right if he got the right kind change.

Explanation:

hope this help

Gasoline has a density of 0.7197 grams per milliliter. Calculate the mass, in grams, of a sample of gasoline with a volume of 48.5 milliliters.​

Answers

Answer:

34.9103 or 34.9 g

Explanation:

Remember Density is a broken heart: m/v.

In this scenario (Let x = # of grams in the sample of gasoline),

D = 0.7198 g/mL = x g / 48.5 mL

So,

(0.7198 g/mL) * (48.5 mL) = x g

x g = 34.9103 = 34.9 g (Accounting for Significant Figures)

is seafloor spreading is beneficial or harmful for the earth

Answers

Answer:

Yes

Explanation

I learned it in science class

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