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Nookie1986 [14]
4 years ago
9

Select the situation below that would produce a total displacement of zero

Chemistry
2 answers:
Arada [10]4 years ago
8 0

Answer:

where are the situations lol

likoan [24]4 years ago
6 0

Answer:

uhhhhhjjj??????????

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What is activation energy?
IrinaK [193]
I think it's the minimum required energy to the reaction to occur
3 0
4 years ago
The starting molecule for the krebs cycle is
Delicious77 [7]

Answer:

acetyl CoA

Explanation:

The starting molecule for the krebs cycle is acetyl CoA.

3 0
3 years ago
The CO2 that builds up in the air of a submerged submarine can be removed by reacting it with sodium peroxide. 2 Na2O2 (s) + 2 C
grandymaker [24]

Answer: The sodium peroxide needed per sailor in a 24 hr period is 674 grams.

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 1.02 atm

V = Volume of gas = 150.0 ml = 0.15 L

n = number of moles  of carbon dioxide = ?

R = gas constant =0.0821Latm/Kmol

T =temperature =20^0C=(20+273)K=293K

n=\frac{PV}{RT}

n=\frac{1.02atm\times 0.15L}{0.0821 L atm/K mol\times 293K}=0.006moles

2Na_2O_2(s)+2CO_2(g)\rightarrow 2Na_2CO_3(s)+O_2(g)

According to stoichiometry:

2 moles of carbon dioxide require = 2 moles of sodium peroxide

Thus 0.006 moles carbon dioxide require= \frac{2}{2}\times 0.006=0.006 moles of  sodium peroxide

Mass of  sodium peroxide needed for 24 hour=moles\times {\text {Molar mass}}=0.006mol\times 78g/mol\times 24\times 60=674g

Thus sodium peroxide needed per sailor in a 24 hr period is 674 grams.

4 0
3 years ago
When comparing propionic acid (CH3CH2COOH) and sodium propionate (CH3CH2COONa), the one that is more soluble in water is When co
vova2212 [387]

Answer:

When comparing propionic acid (CH₃CH₂COOH) and sodium propionate (CH₃CH₂COONa), the one that is more soluble in water sodium propionate.

When comparing cyclohexane (C6H12) and glucose (C6H12O6), the one that is more soluble in water is glucose

When comparing hydrochloric acid (HCl) and ethyl chloride (CH3CH2Cl), the one that is more soluble in water is hydrochloric acid

Explanation:

When comparing propionic acid (CH₃CH₂COOH) and sodium propionate (CH₃CH₂COONa), the one that is more soluble in water sodium propionate. Because always a salt is more soluble in water than its acid (Solubility of propionic acid is 0,37g/mL and of sodium propionate is 1g/mL).

When comparing cyclohexane (C6H12) and glucose (C6H12O6), the one that is more soluble in water is glucose because cyclohexane is made from petroleum and its polarity is very low (cyclohexane is insoluble in water and solubility of glucose is 0,91g/mL).

When comparing hydrochloric acid (HCl) and ethyl chloride (CH3CH2Cl), the one that is more soluble in water is hydrochloric acid because an acid has a medium-high solubility in water but, again, an alkane derived from petroleum has very low solubility in water (hydrochloric acid has a solubility of 0,823g/mL and ethyl chloride is insoluble in water).

I hope it helps!

6 0
3 years ago
Used to describe an atom’s ability to chemically bond with another atom
zepelin [54]

Answer:

"Electronegativity" is the atom's ability to chemically bond with another atom.

Explanation:

Electronegativity is the ability of the atom to attract the electrons towards another atom to it, these two atoms are associated through a bond. The phenomena is based on the atom's ionization energy and the electron affinity. The formation of the chemical bond takes place when the atoms share the electrons they have in outer shells. In other words we can say two atoms fuse together to form chemical bond.

7 0
3 years ago
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