which element dissolves readily in water to form an alkaline solution?
pls help​

I think the answer is organelles.

Answer:

1.62 * 10^-11 J

Explanation:

Nitrogen-14 nucleus has seven neutrons and seven protons. So;

Total mass of protons = 7(1.00728 amu)

Total mass of neutrons = 7(1.00866 amu)

Total mass of nucleons = 7(1.00728 amu) + 7(1.00866 amu)= 14.11158 amu

Mass of Nitrogen-14 nucleus = 14.00307 amu

Mass defect = 14.11158 amu - 14.00307 amu = 0.10851 amu = 1.801852171 * 10^-28 Kg

Binding energy = Δmc^2

Where;

Δm = mass defect

c = speed of light

Binding energy = 1.801852171 * 10^-28 Kg * (3 * 10^8)^2

Binding energy = 1.62 * 10^-11 J

Answer:

0.10851 amu

1.62

-11

Explanation:

Yw

Answer:

Diamond and graphite forms of carbon, silicon dioxide (silica)

thenks and mark me brainliestt pls :))

Answer:

Diamond and graphite forms of carbon) and silicon dioxide (silica) are examples of giant covalent structures (lattices) of atoms. All the atoms in these structures are linked to other atoms by strong covalent bonds and so they have very high melting points.

Reaction 1 :-

Reaction 2 :-

Answer:

Pulling back on the plunger allows you to put in more air into the pump and the more air you have inside a fixed volume, the greater the pressure becomes. (D)

Answer:

158 mol :)

Explanation:

Answer:

Lichens can be used as air pollution indicators, especially of the concentration of sulphur dioxide in the atmosphere. Lichens are organisms that grow in exposed places such as rocks or tree bark. They need to be very efficient at absorbing water and nutrients to grow there.

Answer:

A, increases the average kinetic energy of the molecules

Explanation:

temperature is a measure of the average kinetic energy of particles (atoms, ions and molecules), if one raises the temperature, one is raising the average kinetic energy of the particles.

Answer:

the answer is c carbon dioxide and water

Answer:

H2O

=(1×2)+(8)

=20

Explanation:

We have 1 Hydrogen(H) and 8 Oxygen(O)neutrons . Following the molecule formula, H2O, which means we have 2 Hydrogen that needs to times with 1 neutron;and we have only 1 Oxygen which has 8 neutrons. So 2 (H) have to times 1 and 1(O) have to times 8.

Answer:

A

Explanation:

Answer:

I think the answer is, 100.

Explanation:

but i dont know try

the general formular is cnH2n-2

Answer:

fomula; ( x = mutiplacation btw)

% m/m = m(solute) / m(solution) x 100%

0.50g x 70% = m/m x 100%

0.5g x 70% / 100% = 3.5 g KI

(both % cancle each other)

Explanation:

heads up might be wrong i did it myself

Answer:

The new volume of the gas is 276.45 mL.

Explanation:

Charles's law indicates that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases, and as the temperature decreases, the volume of the gas decreases.

Charles's law is a law that mathematically says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:

[tex]\frac{V}{T} =k[/tex]

Analyzing an initial state 1 and a final state 2, it is satisfied:

[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]

In this case:

Replacing:

[tex]\frac{250 mL}{293 K} =\frac{V2}{324 K}[/tex]

Solving:

[tex]V2=324 K*\frac{250 mL}{293 K}[/tex]

V2= 276.45 mL

The new volume of the gas is 276.45 mL.

Answer:

135.80 g of Ag

Explanation:

[tex]40gCu *\frac{1mol Cu}{63.546g Cu} *\frac{2mol Ag}{1molCu} *\frac{107.868g Ag}{1mol Ag}[/tex]

~ 135.80 g of Ag

Answer:  g/mol

Explanation:

The gram formula mass of  CuSO 4  is  159.60 g/mol  

Multiply the subscript for each element by its molar mass (atomic mass on periodic table in g/mol). Then add the results. This will give you the molar mass of the compound (mass of 1 mole).

Cu : ( 1 × 63.546 g/mol )   = 63.546 g/mol

S : ( 1 × 32.065 g/mol )      = 32.06 g/mol

O : ( 4× 15.999 g/mol )     =  63.996 g/mol

CuSO 4 :  63.546 g/mol  +  32.06 g/mol  + 63.996 g/mol  = 159.60 g/mol  (rounded to two decimal places)

Answer:

Due to presence of similar protein.

Explanation:

The two mice are different from one another due to their different parents so in that way the physical features of both mice are different from one another. Both mice have the same protein for whisker thickness in their cells that leads to same whisker in both mice. The common feature in both mice are the protein that is responsible for whisker thickness so both have same whisker on their face.

Answer:

1. m(NH₄)₂HPO₄ = 1.62 g

2. molesC₃H₇NO₂ = 1.79 moles

3. V = 4.87x10⁹ L

Explanation:

These questions are pretty easy to solve, using the correct expressions and formula.

1. To do this, we just need the density of the (NH₄)₂HPO₄. In this case, the reported density is 1.62 g/mL, therefore:

d = m/V  (1)

Where:

d: density (g(mL)

m: mass of the compound (g)

V: volume of the compound (mL)

As we already have the volume, we can solve for m:

m = d * V  (2)

m = 1.62 * 1

2. To do this, we need the atomic weights of each element that composes the alanine.

C: 12 g/mol;  H: 1 g/mol;   N: 14 g/mol;     O: 16 g/mol

With these atomic weight, let's determine the molar mass of alanine:

MM C₃H₇NO₂ = 3(12) + 7(1) + 14 + 2(16) = 89 g/mol

Now to get the moles, we use the following expression:

moles = m/MM (3)

moles = 159 / 89

3. We have the mass and density of the nitric acid, we just solve for Volume from expression (1) of part 1:

V = m/d  (3)

V = 1.612x10¹⁰ pounds / 12.53 pounds/gallons

V = 1.287x10⁹ gallons

Converting this to liters:

V = 1.287x10⁹ * 3.7854

Hope this helps

Answer Explanation:

If it is like H, or O or N or Na or Cl, those are the elements. Those are on the Periodic table. pH is the acidity and basicity of a substance, how acidic or basic(caustic) it is. mol is Moles. kPa is kilopascals. STP is standard temperature and pressure, at 0*C(Celsius), or 273.15 K(Kelvin), and 101,325 pascals, or 101.325 kilopascals.

Avagadro's Number is 6.022x10^23, the number of atoms in a mole. The Ideal Gas Law is P(Pressure in kPa) times V(Volume in L, liters) equals n(number of moles of gas) times R(the universal gas constant, or 8.3145 (L kPa/K mol) or 8.3145 liters kilopascals per Kelvin mole. that is just a few of them.

Answer:

Hello There!!

Explanation:

I believe the answer is O They form compounds with very bright colors.

hope this helps,have a great day!!

~Pinky~

The statement about noble gases that is correct is D. They form compounds with very bright colors.

Noble gases simply refers to the elements that have similar properties. Noble gases are colorless, odorless, and have very low reactivity.

Examples of noble gases are helium, argon, Krypton, xenon, etc. Noble gases also form compounds with very bright colors.

In conclusion, the correct option is D.

Read related link on:

https://brainly.com/question/24070118

Answer:

The answer is D

The last one

Answer:

Water forms the basis of almost every type of cosmetic product, including creams, lotions, makeup, deodorants, shampoos and conditioners. Water plays an important part in the process, often acting as a solvent to dissolve other ingredients and forming emulsions for consistency.

Explanation:

Water forms the basis of almost every type of cosmetic product, including creams, lotions, makeup, deodorants, shampoos and conditioners. Water plays an important part in the process, often acting as a solvent to dissolve other ingredients and forming emulsions for consistency.

4a. D - The last number in the configuration represents the group, in this case 3, and the number of shells represent the period, which is also 3.

4bi. Rubidium metal reacts very rapidly with water to form a colourless solution of rubidium hydroxide (RbOH) and hydrogen gas (H2). The resulting solution is basic because of the dissolved hydroxide. The reaction is very exothermic and explosive.

4bii. Lithium is smaller in size than potassium . so valence electrons are more tightly held in Li than K. Due to larger size of K the valence electrons are loosely held and easy to remove the electron from K. Hence K is more reactive.

Answer:

Is this the full question?