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Dima020 [189]
4 years ago
9

7th grade science help me plzz

Chemistry
1 answer:
qaws [65]4 years ago
8 0

the answer to the first one is D and the second one is the first one

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How many moles of carbon dioxide are produced when 5.12 moles of glucose undergoes a combustion reaction?
SVEN [57.7K]

Answer: 30.72 moles of CO_2 will be produced from 5.12 moles of glucose.

Explanation:

The balanced chemical equation for combustion of glucose is:

C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O  

According to stoichiometry :

1 moles of glucose produce =  6 moles of CO_2

Thus 5.12 moles of glucose produce =\frac{6}{1}\times 5.12=30.72moles  of CO_2

Thus 30.72 moles of CO_2 will be produced from 5.12 moles of glucose.

8 0
3 years ago
Why is the moisture of cirrus clouds mostly in the solid state
MariettaO [177]

Answer:

Wind is the horizontal movement of air, transporting energy transferred from the earth's surface as sensible and latent heat. Sensible heat is transferred by the processes of conduction and convection. Conduction transfers energy within a substance, and convection transfers energy through the vertical movement of the heated substance. Latent heat is the transfer of energy by transforming the substance itself. As you recall, water has the ability to exist as liquid, gas or solid. The transformation from liquid to gas is called evaporation; the reverse process, from gas to liquid, is called condensation; from liquid to solid is known as solidification (freezing); and from solid to liquid, fusion (melting). Water can also be transformed directly from solid to gas (sublimation), or the reverse, through a process called deposition. We will see these various processes in the formation of clouds.

Explanation:

if I did not give answer then i hope i at least helped!

5 0
3 years ago
A curium-245 nucleus is hit with a neutron and changes as shown by the equation. Complete the equation by filling in the missing
Lera25 [3.4K]

Try this option:

^{245}_{96}Cm+^1_0n=^{103}_{42}Mo+^{245+1-103-3*1}_{96+0-42-3*0}(X)+3^1_0n;

^{245}_{96}Cm+^1_0n=> ^{103}_{42}Mo+^{140}_{54}(X)+3^1_0n;

^{245}_{96}Cm+^1_0n=> ^{103}_{42}Mo+^{140}_{54}Xe+3^1_0n;

Answer:

^{140}_{54}Xe

8 0
3 years ago
Read 2 more answers
The N H 2 group makes the molecule an amine. Like alcohols, amines can participate in hydrogen bonding. If the drawn molecule en
lesantik [10]

Answer:

a hydrogen bond between the hydrogen of water and the nitrogen of the amine

a hydrogen bond between the oxygen of water and a hydrogen from the -NH2 group

Explanation:

A hydrogen bond is formed between molecules in which hydrogen is bonded to a highly electronegative element.

In amines, hydrogen is bonded to nitrogen while in water, hydrogen is bonded to oxygen. Both are highly electronegative elements hence hydrogen bonding is possible between amines and water.

This hydrogen bond may involve;

The hydrogen of water and the nitrogen of the amine

Or

The oxygen of water and a hydrogen from the -NH2 group

7 0
3 years ago
Please help!!!!!!!!!!!!
Olin [163]

Answer:

Explanation:

Atomic number = 8

Electron = 8

1s level= 2

2nd level = 6

3rd level =0

Hope this help

6 0
3 years ago
Read 2 more answers
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