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3 years ago

Explain how layers that form in ice are similar to tree rings?

2 answers:

4 0

Layers of ice and tree rings are similar in that they can both record or store data from past environmental conditions. The study of tree rings is known as dendrochronology and it involves counting and studying individual rings in the tree. Each ring represents a year or specific growing period. If the ring is smaller it means there might have been a drought or nutrients were low. A larger than average ring would represent an unusually favourable growing season. Layers of ice in an ice sheet trap information that can tell about past conditions such as climate. Just like the tree rings specific sections represent a specific period of time. Air bubbles trapped in ice provides information on past climates.

Ber [7]3 years ago

4 0

Answer:

<h2>Answer is </h2><h2></h2>

Each layer found in ice represents one year of snow fall. Each tree ring represents one year of growth. Both ice layers and tree rings, based on their size and make up, can tell us about the climate for that given year.

(When writing down the answer please change some words, Thank You)

Explanation:

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How many moles of S2O8 2– react for every mole of S2O3 2– that reacts? Consider the balanced chemical equations for reactions 1

rewona [7]

For 1 mole of S₂O₃²⁻ 0.5 mole of S₂O₈²⁻ will be used.

<h3>What is a balanced Reaction ?</h3>

A reaction in which the number of atoms in reactants is equal to the number of atoms in the products is called a balanced reaction.

The reaction given in the question is

S₂O₈²⁻ + 2I⁻ ⇄ 2SO₄²⁻ + I₂

I₂ + 2S₂O₃²⁻ ⇄ 2I⁻ + S₄O₆²⁻

Adding the equation will give balance equation

S₂O₈²⁻ + 2I⁻ + 2S₂O₃²⁻ ⇄ 2SO₄²⁻ + 2I⁻ + S₄O₆²⁻

So x moles of S₂O₈²⁻ require 2x of S₂O₃²⁻

for 1 mole of S₂O₃²⁻ 0.5 mole of S₂O₈²⁻ will be used.

To know more about Balanced Reaction

brainly.com/question/14280002

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7 0

3 years ago

For neap tides, what must the angular alignment be between the sun, earth and moon?

butalik [34]

Answer:

The angular alignment is 90 degrees

Explanation:

The neap tide is a type of tide which occurs around seven days after a spring tide. This type of tide happens twice every month.

The tide is usually moderate and it exists when the sun and moon are usually at right angles to each other when it occurs. A right angle is also known as 90 degrees which validates the tide occurring at an angle 90.

4 0

3 years ago

You have 100 mL of a solution of benzoic acid in water; the amount of benzoic acid in the solution is estimated to be about 0.30

dimaraw [331]

Answer:

0.00370 g

Explanation:

From the given information:

To determine the amount of acid remaining using the formula: $\dfrac{(final \ mass \ of \ solute)_{water}}{(initial \ mass \ of \ solute )_{water}} = (\dfrac{v_2}{v_1+v_2\times k_d})^n$

where;

v_1 = volume of organic solvent = 20-mL

n = numbers of extractions = 4

v_2 = actual volume of water = 100-mL

k_d = distribution coefficient = 10

∴

$\dfrac{(final \ mass \ of \ solute)_{water}}{0.30 \ g} = (\dfrac{100 \ ml}{100 \ ml +20 \ ml \times 10})^4$

$\dfrac{(final \ mass \ of \ solute)_{water}}{0.30 \ g} = (\dfrac{100 \ ml}{100 \ ml +200 \ ml})^4$

$\dfrac{(final \ mass \ of \ solute)_{water}}{0.30 \ g} = (\dfrac{1}{3})^4$

$\dfrac{(final \ mass \ of \ solute)_{water}}{0.30 \ g} = 0.012345$

Thus, the final amount of acid left in the water = 0.012345 * 0.30

= 0.00370 g

3 0

4 years ago

You're provided with a bottle labled [CoCl2.6H2O] = 0.051 M in 4.60 M HCl. You heat a small volume of the solution in a hot wate

professor190 [17]

Answer : The concentration of $Cl^-$ at equilibrium is 4.54 M

Explanation :

The equilibrium reaction will be:

$[CoCl_2.6H_2O]+2Cl^-\rightleftharpoons [CoCl_4]^{2-}+6H_2O$

Initial 0.051 M 4.60 M 0

At eqm. (0.051-x) M (4.60-2x) M x

As we are given:

Concentration of $[CoCl_4]^{2-}$ at equilibrium = 0.031 M

That means,

x = 0.031 M

Concentration of $Cl^-$ at equilibrium = (4.60-2x) M = [4.60-2(0.031)] M = 4.54 M

Hence, the concentration of $Cl^-$ at equilibrium is 4.54 M

4 0

4 years ago

Write the electronic configuration of calcium oxide

Nana76 [90]

Answer:

The electron configuration for calcium is: 1s2 2s2 2p6 3s2 3p6 4s2. Since calcium is in the fourth row and the second column of the s-block on the periodic table of elements, its electron configuration ends in 4s2. Every lower orbital is filled, starting with the 1s orbital.

Explanation:hope this helps

6 0

3 years ago