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1 year ago

As we move UP a energy pyramid, the amount of energy available to each level of consumers

Chemistry

1 answer:

cricket20 [7]1 year ago

7 0

Answer:

well we do need up to explain the neergyu field on the world you probaly think im spamming but i thing you need up

Explanation:

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Consider the neutralization reaction that takes place when hydrochloric acid reacts with aqueous calcium hydroxide

Galina-37 [17]

2HCl + Ca(OH)2 -------> CaCl2 + 2H2O

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2 years ago

Muscle tissue is made up of cells that contract and release to produce movement. Which process provides the energy that the cell

Scrat [10]

I think you mean miosis because mitosis is cell reproduction, photosynthesis is to do with light, respiration is breathing and meiosis is division of cells

5 0

2 years ago

Read 2 more answers

Enter your answer in the provided box. To make use of an ionic hydrate for storing solar energy, you place 409.0 kg of sodium su

alex41 [277]

Answer:

409.0 kg of sodium sulfate decahydrate will produce 4.49×10⁵ kJ

of heat energy.

Explanation:

CHECK THE COMPLETE QUESTION BELOW

To make use of an ionic hydrate for storing solar energy, you place 409.0 kg of sodium sulfate decahydrate on your house roof. Assuming complete reaction and 100% efficiency of heat transfer, how much heat (in kJ) is released to your house at night? Note that sodium sulfate decahydrate will transfer 354 kJ/mol

EXPLANATION

Here we were asked to calculate the amount of heat will be generated by 409.0 kg of sodium sulfate decahydrate at night assuming there Isa complete reaction and 100% efficiency of heat transfer in the process

The molecular weight of sodium sulfate decahydrate (H₂₀Na₂O₁₄S) is needed here, so it must be firstly calculated.

The molecular weight of sodium sulfate decahydrate (H₂₀Na₂O₁₄S)

( 1*20) + (22.98*2) + (16*14)+ (32*14)= 322.186 g/mol.

Thus 409.0 kg of H₂₀Na₂O₁₄S will have a value which is equivalent to = (409000g)/(322.186 g/mol.)

=1269.453mol of H₂₀Na₂O₁₄S.

But it was stated in the the question that per mole of H₂₀Na₂O₁₄S will transfer 354 kJ heat.

Therefore, 1269.453mol will transfer 1269.453× 354 kJ = 4.49×10⁵ kJ of heat.

Hence, 409.0 kg of sodium sulfate decahydrate will produce

4.49×10⁵ kJ of heat energy.

6 0

2 years ago

If 0.400 moles CO and 0.400 moles O2 completely react how many grams of CO2 are produces?

True [87]

If 0.400 moles CO and 0.400 moles O2 completely react, 17.604 grams of CO2 would be produced.

First, let us look at the balanced equation of reaction:

$2CO + O_2 ---> 2CO_2$

According to the equation, the mole ratio of CO and O2 is 2:1. But in reality, the mole ratio supplied is 1:1. Thus, CO is the limiting reactant while O2 is in excess.

Also from the equation, the ratio of CO consumed to that of CO2 produced is 1:1. Thus, 0.400 moles of CO2 would also be produced from 0.400 moles of CO.

Recall that: mole = mass/molar mass

Therefore, the mass in grams of CO2 that would be produced from 0.400 moles can be calculated as:

Mass = mole x molar mass

= 0.400 x 44.01

= 17.604 grams

More on calculating mass from number of moles can be found here: brainly.com/question/12513822

7 0

1 year ago

The lab procedure you just studied involves

Svetllana [295]

Answer: c , v, c, c, v

Explanation:

8 0

2 years ago