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4 years ago

If this cup of iced tea sits for a while on your kitchen table what will happen to its thermal energy

1 answer:

5 0

Because the tea is iced, it would be lower than room temp, meaning it would absorb thermal energy until it was the same temp as room temp, because thermal energy always goes where it is less concentrated until equilibrium has been reached.

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P4010

ludmilkaskok [199]

Answer:

32.76mole of P

Explanation:

The reaction expression is given as;

P₄O₁₀ → 4P + 5O₂

Given parameters:

Number of moles of P₄O₁₀ = 8.19mol

Unknown:

Number of moles of P produced = ?

Solution:

From the balanced reaction expression;

1 mole of P₄O₁₀ will produce 4 mole of P

8.19mole of P₄O₁₀ will therefore produce 4 x 8.19 = 32.76mole of P

3 0

3 years ago

3 facts about earths layers?

tiny-mole [99]

The inner core is solid, fourth layer and made out of iron and nickel. It's the one mostly in charge for the other layers. If the inner core stopped spinning, the outer core would lose its magnetic field, and this will be bad because of the sun's radiation wave. Including the other layers.

The outer core is the liquid, third layer. It's in charge of Earth's magnetic field.

The mantle is the second layer of earth, the original temperature can come up about to 1000+ or more, celsius.

8 0

3 years ago

Places the following layers in sequence from the outermost layer to the innermost layer ?

Elena L [17]

Crust, Mantle, Outer core, Inner Core

8 0

3 years ago

Read 2 more answers

) Predict the product for the following reaction sequence. A) 2,2-dimethylpropanoic acid B) 3,3-dimethyl-2-butanone C) 2,2-dimet

cestrela7 [59]

Answer:

Option C. 2,2-dimethyl-1-propanol

Explanation:

The first attached picture, is the initial reactant.

Now, what happens in each step?, at first we have an alkyl bromide reacting with Mg/ether. This converts the reactant in a grignard reagent, which is often used in several ketones/ladehydes reactions, and even some acid and esthers.

Now, in the second step, we see this grignard reagent, reacting with CO₂ and H₃O⁺. At first, the grignard reagent will attach to the oxygen of the CO₂ by the MgBr, and the carbonated chain will attach to the carbonile. Then in acid medium, the OMGBr leaves the molecule, and form a carboxylic acid.

Finally, in the last step with LiAlH₄ and water, this compound just reduces the carboxylic acid to a primary alcohol, therefore, the only choice available is option c, 2,2-dimethyl-1-propanol.

See picture 2 below for the drawing.

Hope this helps

8 0

3 years ago

how many moles of sodium hydroxide (NaOH) are required to completely neutralize 2 mol of nitric acid (HNO3)

Brut [27]

2 moles of sodium hydroxide will be needed.

<h3><u>Explanation</u>:</h3>

Sodium hydroxide is a compound which is a base and nitric acid is the acid. The formula of the nitric acid is HNO3 and that of sodium hydroxide is NaOH.

The reaction between them are

NaOH +HNO3 =NaNO3 +H2O.

So here we can see that 1 mole of sodium hydroxide reacts with 1 mole of nitric acid to produce 1 mole of sodium nitrate and 1 mole of water.

So for 2 moles of nitric acid, 2 moles of sodium hydroxide will be required.

6 0

4 years ago