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madreJ [45]
2 years ago
15

According to the passage, as a result of a mutation, an organism

Chemistry
2 answers:
STatiana [176]2 years ago
8 0

Answer: C

Explanation:

laiz [17]2 years ago
6 0

Answer:

C

Explanation:

May evolve for better survival.

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g Ethanol boils at 78.4 °C with \DeltaΔHvap = 38.6 kJ/mol. A 0.200-mol sample of ethanol is heated from some colder temperature
andrezito [222]

Answer:

8.77 kilo Joules  will be the total amount of heat required for both the heating and the vaporizing.

Explanation:

Moles of ethanol of ethanol = 0.200 mol

Heat required to heat 0.200 moles of ethanol = Q = 1.05 kJ

Enthalpy of vaporization of ethanol = \Delta H_{vap}=38.6 kJ/mol

Heat required to vaporize 0.200 moles of ethanol = Q'

Q'=\Delta H_{vap}\times 0.200 mol=38.6 kJ/mol\times 0.200 mol=7.72 kJ

Total heat required to fore heating and the vaporizing :

= Q + Q' = 1.05 kJ + 7.72 kJ = 8.77 kJ

8.77 kilo Joules  will be the total amount of heat required for both the heating and the vaporizing.

7 0
3 years ago
A 13.58 g sample of a compound contains 8.67 g of iron, Fe, 1.60 g of phosphorus, P, and oxygen, O. Calculate the empirical
antiseptic1488 [7]

Answer:

Fe_3PO_4

Explanation:

To do this, we find the moles of each element. We get around 0.155 moles of Fe, 0.051 moles of P, and 0.206 moles of O. We then divide each one by the smallest one (which is 0.051 moles of P). We then get 3 for Fe, 1 for P, and 4 for O. This correlates to the empirical formula of the compound.

6 0
3 years ago
The standard cell potential (E°) of a voltaic cell constructed using the cell reaction below is 0.76 V: Zn (s) + 2H+ (aq) → Zn2+
barxatty [35]

Answer:

[H⁺] = 1.30X10⁻⁴ M

Explanation:

the problem will be solved by using Nernst's equation, which is :

E_{cell}=E^{0}_{cell}- \frac{0.0592}{n}logQ

In the given equation

n = 2

Q = =\frac{[Zn^{+2}][p_{H2}]}{[H^{+}]^{2}}

Putting values

0.53= 0.76 - \frac{0.0592}{n}log(\frac{1X1}{[H^{+}]^{2}})

on calculating

[H⁺] = 1.30X10⁻⁴ M

6 0
3 years ago
PLSSSSSS HELPPPPPPP FAST WILL GIVE BRAINLIEST I NEED A 3 PARAGRPAH ESSAY ON THIS SCIENCE ARTICLE!! INTRODUCION BODY AND CONCLUSI
Ksju [112]

Answer:

jst do the work

Explanation:

its not complicated,ask your teacher for help

3 0
2 years ago
HURRRYYY !!!!!
coldgirl [10]

Answer:

The correct answer is - increase Florida's average income per person.

Explanation:

Kennedy Space Center established by NASA helped the boosting economy of Florida. Spaceport operations in Kennedy Space Center benefit Florida by a total economic impact of nearly $4 billion on Florida's economy.

This space center helped in the 7,639 jobs in 2018 and 2019 and 37 new space operation companies. These jobs increased Florida's average income per person above $91,000.

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