What is the relationship between all of these?

Answer:

yes

Explanation:

Answer:

C) periodic table

Explanation:

Answer:

c

Explanation:

cmon its so obvious

Answer:

D. Its temperature will remain 100 C until all the vapours condenses

Explanation:

Heat absorbed by a substance to change the state of matter is known as latent heat. This heat is utilized to break the bonds between atoms of the substance so that they can undergo phase change.

So, when water boils at 100 degree Celsius then temperature will remain constant unless and until all the water changes into vapor. As it is the latent heat that breaks the bonds between hydrogen and oxygen atoms of water so that liquid state can change into gaseous state.

Since latent heat is a hidden heat, that is why, it does not get reflected and there is no change in temperature due to it.

Thus, we can conclude that it is true that temperature will remain at 100°C until all the vapor condenses for a sample of water vapor at 101°C as it cools.

Answer:The number of electrons in an atom's outermost valence shell governs its bonding behavior. Therefore, elements whose atoms can have the same number of valence electrons are grouped together in the periodic table of the elements

Explanation: B

it's D because the are located in the outer most shell, they are responsible for the chemical reaction and determine if they conduct electricity or not, you can look it up if you don't believe me

Answer:

Running changes your body by burning body fat and building muscles. Expect to lose fat at the top of your thighs, build stomach muscles of steal and a butt to die for the weight. ... Running increasing your strength and endurance plus interval training can boost your metabolism.

Explanation:

Answer:

It cites valid data

Explanation:

It clearly shouldn't cite opinions cause then that isn't science. Every thing else seems like an okay answer but it cites valid data is the best answer since the data should be valid no matter what.

Answer: 105 u

Explanation:

Answer:

Polar Bears

Arctic Foxes

Seals

Penguins

They all live in the cold, so they all must live in the Arctic Tundra ;)

Answer:

Animals such as polar bears, arctic wolves, and arctic foxes live in the Arctic Tundra.

The answer is D

Explanation: A RED FLOWER WITH ONE PART COLORED YELLOW

Answer:

D.a red flower with one part colored yellow

Explanation:

edg2020

Answer:

CS₂ + 3Cl₂ ⇒ CCl₄ + S₂Cl₂

Explanation:

This one is relatively simple. When we take inventory of both sides, we see 1 Carbon, 2 Sulfurs, and 2 Chlorines on the reactant side, and 1 Carbon, 2 Sulfurs, and 6 Chlorines on the product side. Since we have Cl₂ on the left and we want 6 on the left, let's add a coefficient of 3 to Cl₂. This balances everything out! Final answer: CS₂ + 3Cl₂ ⇒ CCl₄ + S₂Cl₂. Hope this helps!

Answer:

I think they are beneficial for the life of those symbiotic organisms that require yes or yes from another to be able to live.

Although an ecosystem could not be carried out if only this relationship would occur, since symbiotic relationships we have an organism where it needs another to live and even removes the necessary nutrients for it, that is why the chain should continue with other types of relationships .

Explanation:

The symbiosis is defined as "Intimate association of organisms of different species to mutually benefit in their vital development" that is why adequate coexistence between these living organisms is needed, otherwise this phenomenon would not occur.

A very good example of the symbiosis is: Bees and plants where the bee is the pollinating agent of the plant so that it continues to reproduce and the plant is the bee's food source.

Therefore I believe that the development of this type of relationship is VITAL, and very fundamental, otherwise I do not know if an ecosystem or a balanced ecosystem could be carried out.

Answer: “We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make up the Milky Way Galaxy which is one of billions of other galaxies which make up a universe which may be one of a very large number, perhaps an infinite number, of other universes. That is a perspective on human life and our culture that is well worth pondering.”

― Carl Saga

Is this it mate?

Answer:

Both are pure substances and a compound

Answer:

Aspirin, 9 carbon atoms

Explanation:

(would really appreciate the brainliest)

Aspirin is a compound which has most carbon atoms that is it has 9 carbon atoms.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

Learn more about atom,here:

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#SPJ2

Answer:

1.204 * 10^24

Explanation:

Answer:

Explanation:

It is also known to be a non-conductive material due to its volatile content. The coatings and inks industries prefer grades of carbon black that are acid-oxidized. Acid is sprayed in high-temperature dryers during the manufacturing process to change the inherent surface chemistry of the black.

Answer:

C) electrons are transferred from one atom to another in both types of bonds

Explanation:

Answer:

That is exactly what happens when esters are hydrolysed by water or by dilute acids such as dilute hydrochloric acid. The alkaline hydrolysis of esters actually involves reaction with hydroxide ions, but the overall result is so similar that it is lumped together with the other two.

Explanation:

Answer:

Option C is correct

Explanation:

Entropy is defined as the randomness in a system. In nature, a system tends to have high entropy. The higher the entropy , the spontaneous the reactions would be. As a system loses energy, it becomes more ordered and less random. Hence, as the reaction proceeds in a system, the system  has higher energy/entropy and less order.  

Hence, option c is correct

Answer:

253.02 kJ.

Explanation:

The balanced reaction for the decomposition of baking soda is

2 NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)

We can find the heat of reaction by using the Hess' Law. This is done by using this formula:

∑(Hf,products) -∑(Hf,reactants) = Heat of reaction

where Hf is the heat of formation. According to literature, these are the heats of formation for each of the compounds in the reaction:

NaHCO3: -947.68 kJ/mol

Na2CO3: -1130.94 kJ/mol

CO2: -393.51 kJ/mol

H2O: -241.8 kJ/mol

Applying Hess' Law:

[1(-1130.94) + 1(-241.82)] + 1(-393.51)] - [2(-947.68)] = 129.09 kJ

Thus, the heat of reaction is 129.09 kJ/mol NaHCO3. Since there is 1.96 mol of NaHCO3, the total heat of reaction is 253.02 kJ.

Answer:

Option B

Explanation:

A structural isomer of an organic compound refers to a compound that has the same molecular formula, but a different arrangement of atoms in the carbon chain.

Butanol has the molecular formula C4H9OH.  We can now explore the options to see if any of them have the same molecular formula.

Option A has no oxygen in it, so we can rule it out

Option B has 4 carbon atoms, 9 hydrogen atoms and 1 oxygen atom as well as single Chain branches. This makes it the structural isomer of Butanol ( C4H9OH).

Option C has only 3 carbon atoms which rules it out as being an isomer.

Answer:

option b on edge

Explanation:

Answer:

1. pOH = 1.01 and the pH = 12.99.

2. a) %I = 0.417 %, b) pH =  2.34.  

Explanation:

1. The pH of the dissolution of Ba(OH)₂ in water can be calculated using the following equation:

[tex]pH = 14 - pOH = 14 - (-log[OH^{-}]) = 14 + log[OH^{-}][/tex]

To find the pOH, first, we need to calculate the concentration (C) of Ba(OH)₂:

[tex] C_{Ba(OH)_{2}} = \frac{\eta}{V} = \frac{m}{M*V} [/tex]

Where:

η: is the number of moles of Ba(OH)₂

V: is the volume of the solution = 100 ml = 0.100 L

M: is the molar mass of Ba(OH)₂ = 171.34 g/mol

m: is the mass of Ba(OH)₂ = 0.837 g          

[tex] C_{Ba(OH)_{2}} = \frac{m}{M*V} = \frac{0.837 g}{171.34 g/mol*0.100 L} = 0.049 mol/L [/tex]  

Knowing that in 1 mol of Ba(OH)₂ we have two moles of OH⁻, the concentration of OH⁻ is:

[tex] C_{OH^{-}} = \frac{2*\eta_{Ba(OH)_{2}}}{V} = 2*C_{Ba(OH)_{2}} = 2*0.049 mol/L = 0.098 mol/L [/tex]

Now, we can find the pOH and the pH of the solution:

[tex] pOH = -log[OH^{-}] = -log(0.098) = 1.01 [/tex]

[tex] pH = 14 - pOH = 14 - 1.01 = 12.99 [/tex]

2. a) The percentage of ionization (% I) of acetic acid can be calculated using the following equation:

[tex]\% I = \frac{[H^{+}]_{eq}}{[HA]_{0}}*100[/tex]

We need to find the [H⁺] = [H₃O⁺] at the equilibrium:

CH₃COOH(aq) + H₂O(l) → CH₃COO⁻(aq) + H₃O⁺(aq)  

 1.0 - x                                        x                   x

[tex] Ka = \frac{[CH_{3}COO^{-}]*[H_{3}O^{+}]}{[CH_{3}COOH]} [/tex]

Ka: is the dissociation constant of acetic acid = 1.75x10⁻⁵

[tex] 1.75\cdot 10^{-5} = \frac{x^{2}}{1.0 - x} [/tex]

[tex] 1.75\cdot 10^{-5}(1.0 - x) - x^{2} = 0 [/tex]     (1)  

By solving equation (1) for x we have two solutions:

x₁ = -0.00417

x₂ = 0.00417 = [H₃O⁺] = [CH₃COO⁻]  

We will take the positive value to find the percentage ionization:          

[tex]\% I = \frac{[H^{+}]_{eq}}{[HA]_{0}}*100 = \frac{0.00417 M}{1.0 M}*100 = 0.417 \%[/tex]    

b) The pH of the solution is:

[tex] pH = -log([H_{3}O^{+}]) = -log(0.00417) = 2.34 [/tex]

I hope it helps you!          

Answer:  hydrophilic head and hydrophobic tails

Explanation:

A phospholipid consists of glycerol molecule, 2 fatty acids, and 1 phosphate group that is replaced by alcohol. In the phosphate group the polar head is negatively charged and hydrophilic in nature, whereas the fatty acid chain is nonpolar tails, that are hydrophobic. The tails are hydrophobic which face the inside and away from water.

Answer:

hydrophilic head and hydrophobic tails

Answer:

A)Nuclear Force

Explanation:

Its answer is Nuclear Force keeps protons and neutrons togeather.

Answer:

515.6 mL

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

The number of mL of the solution needed to make a 5.78 M solution with 2.98 moles of CaO is 516 mL.

The number of moles that is present in a liter of solution is regarded to be the Molarity of the solution that is measured in mol/L.

[tex]\mathbf{Molarity = \dfrac{number\ of \ moles(n)}{Volume \ (in \ liters)}}[/tex]

[tex]\mathbf{Molarity = \dfrac{2.98 moles }{5.78 \ mol/ L}}[/tex]

Molarity = 0.51557 L

If 1 Liter of solution contains 1000 mL, then 0.51557 L will contain:

= 0.516 × 1000 mL

= 516 mL of solution.

Therefore, we can conclude that the number of mL of the solution needed to make a 5.78 M solution with 2.98 moles of CaO is 516 mL.

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Answer:

period 3 and group 3

Explanation:

I'm saying group 3 because that is how I learnt it at school, but if you count it then it's in group 13.

Answer:

The OH- ion concentration is greater than the H3O+ ion concentration.

Explanation:

Answer:

you would be trapped in the gravitational pull of a black hole

Explanation:

there is a black hole in the center of the galacy

Answer:

increase

Explanation:

Please see the step by step explaination in the pictured attached below.