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Arisa [49]
3 years ago
6

BRAINLIEST

Chemistry
1 answer:
Nat2105 [25]3 years ago
6 0

Answer:

[H₃O⁺] → 1×10¹¹

Second option

Explanation:

pH = - log [H₃O⁺]

So, 10^⁻pH =  [H₃O⁺]

pH = 11

10⁻¹¹ =  [H₃O⁺] → 1×10¹¹

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In order to synthesize proteins, carbohydrates, lipids, and nucleic acids, cells require _____.
jonny [76]

Answer:

Energy

Explanation:

A sugar group would be used for carbohydrates or nucleic acids. An adenosine group would be used in ATP formation if I recall correct. And disaccharides are just two monosaccharides linked together, so that would also be for carbohydrates. Therefore, energy is the answer.

4 0
3 years ago
Copper has a specific heat of 0.385 J/gºC.
Anna71 [15]

Answer:

The final temperature is 348.024°C.

Explanation:

Given data:

Specific heat of copper = 0.385 j/g.°C

Energy absorbed = 7.67 Kj (7.67×1000 = 7670 j)

Mass of copper = 62.0 g

Initial temperature T1 = 26.7°C

Final temperature T2 = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = T2 - T1

Q = m.c. ΔT

7670 J = 62.0 g × 0.385  j/g °C ×( T2- 26.7 °C )

7670 J = 23.87 j.°C ×( T2- 26.7 °C )

7670 J / 23.87 j/°C = T2- 26.7 °C

T2- 26.7 °C = 321.324°C

T2 = 321.324°C + 26.7 °C

T2 = 348.024°C

The final temperature is 348.024°C.

6 0
3 years ago
Give me lil reasoning so I know your not lying for points
Delvig [45]

Answer:

As the temperature increases the pressure increases.

Explanation:

This graph has a positive slope, meaning that there is a direct relationship between the two graphed variables.

3 0
3 years ago
According to Hund's rule, what's the expected magnetic behavior of vanadium (V)?
vodka [1.7K]

Answer:

C. paramagnetic.

Explanation:

1s2 2s2 2p6 3s2 3p6 4s2 3d3 It is Vanadium.

It has 3 unpaired d- electrons, so it is paramagnetic.

6 0
3 years ago
What are the two conditions needed for sodium chloride to conduct electricity
ASHA 777 [7]

Answer:

Sodium chloride will conduct electricity only when it is in a liquid state or in solution, this is because the ions are free to move in this state, allowing them to carry charge and conduct electricity

Explanation:

hope this helped you learned this in 5th grade

3 0
3 years ago
Read 2 more answers
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