Help! Drag and drop the answer into the box to match each method of how to separate solutions to its description.

Answer:

The 2nd one

Explanation: U answered yourself on the second one

Answer: I don't have the last column though.

Explanation:

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:

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:

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:

They will try to defend themselves

Explanation:

Answer:

octopuses will shoot a dark liquid, sometimes called ink, at the thing that scared them. ... If an octopus does get caught — no problem. They can lose arms and regrow them.

Explanation:

Democrats and Republicans

Answer:

5000 nL

Explanation:

Answer: 5000 nL

Explanation:

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: 105 u

Explanation:

Answer:

The molar volume of a gas is the volume of one mole of a gas at STP. At STP, one mole (6.02 × 1023 representative particles) of any gas occupies a volume of 22.4 L (Figure below). A mole of any gas occupies 22.4 L at standard temperature and pressure (0°C and 1 atm).

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.

Answer:

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

Explanation:

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:smoke

Explanation:smoke is a gas

Answer:

Both are pure substances and a compound

Answer: Nuclear Fission

Answer:

Beta Decay

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:u got me stumped

Explanation:

Answer:

increase

Explanation:

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

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:

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: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

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:

C) periodic table

Explanation:

Answer:

c

Explanation:

cmon its so obvious

Answer:

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

Explanation:

Answer:refer to the image below

Answer:

A)Nuclear Force

Explanation:

Its answer is Nuclear Force keeps protons and neutrons togeather.