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3 years ago

Which statement is true about the atoms in helium gas?

Chemistry

1 answer:

jasenka [17]3 years ago

5 0

Answer: The answer is they are not closely packed

Explanation: HOPE THIS HELPS!!

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What do plants do that requires Energy?

Kruka [31]

Answer:

Photosynthesis

Explanation:

Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen. The oxygen is released, or “exhaled”, from leaves while the energy contained within glucose molecules is used throughout the plant for growth, flower formation, and fruit development.

7 0

3 years ago

Consider this mechanism:

DerKrebs [107]

Answer:

$ClO^- + I^-\rightarrow IO^- + Cl^-$

Explanation:

Given a reaction mechanism, we will typically have catalysts and intermediates which will not be observed in the final balanced overall reaction. In order to obtain a net reaction, we need to add all the separate steps of the given reaction.

First of all, the reactants are combined followed by a combination of products. The repeating species on both sides of the final equation are then canceled out. Let's sum everything we have in our steps:

$ClO^- + H_2O + I^- + HClO + OH^- + HIO\rightarrow HClO + OH^- + HIO + Cl^- + H_2O + IO^-$

Repeating species that can be canceled out are:

$H_2O,~HClO,~OH^-,~HIO$

This leaves a net reaction of:

$ClO^- + I^-\rightarrow IO^- + Cl^-$

5 0

3 years ago

Easy points. Chemistry question. Put the following molecules in order, from those that require the least energy to break

ss7ja [257]

Molecule C requires the least energy, Molecule B requires more, and Molecule A requires the most.

Explanation:
Molecule C is made up of a triple bond, which requires the most energy to break. Molecule B is made up of a double bond which is not as strong as a triple bond therefore requiring less energy. Molecule A is made up of a single bond which is the least strong thus requiring the least amount of energy.

4 0

2 years ago

State mendel's law of inheritance

inna [77]

Answer:

bat hindi nalang ikaw mag sagot dyan bubu ka ba huh well search mo nalang sa g00gle yan teh baka sakali lang like duh haha gawin mo nalang yan

that's it!

6 0

3 years ago

The dilution factor D for an unseeded mixture of wastewater is 0.05. The DO of the mixture is initially 8.0 mg/L, and after 5 da

enyata [817]

Answer:

(i) 5-day BOD of the waste is 120 mg/l.

(ii) The ultimate carbonaceous BOD (Lo) is 20 mg/l.

Explanation:

The dilution factor D is 0.05.

The initial DO is 8.0 mg/L and the DO after 5 days is 2.0 mg/L.

The BOD of the waste for an unseeded mixture is

$BOD_5=(DO_5-DO_0)/D=(8-2)/0.05=6/0.05=120mg/l$

The ultimate carbonaceous BOD (Lo) can be calculated as

$L = L_o*10 ^{- k_1t} \\L_o=L/10^{- k_1t}=2/10^{- 0.2*5}=2/10^{- 1}=2*10=20mg/l$

6 0

2 years ago