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3 years ago

Which of the following "spheres" is NOT involved in the water cycle?

2 answers:

5 0

B is the correct answer.
The exosphere is the outermost region of the atmosphere the gradually merges out into space. The water cycle does not occur within this region.

harina [27]3 years ago

5 0

The answer is B. exosphere

You might be interested in

If a substance contains a hydrogen ion concentration of 1.0 x 10-5 M, which types of ions does it contain more of?

miss Akunina [59]

Since the pH of the substance is 5, the substance contains more of hydrogen ions.

<h3>What is pH of a solution?</h3>

The pH of a a solution is the negative logarithm to base ten of the hydrogen ions concentration of the solution.

$pH = -log[H^{+}]$

A neural solution has pH 7.

A solution with pH below 7 has more hydrogen ions while a solution with pH above 7 has more hydroxide ions.

The pH of a substance contains a hydrogen ion concentration of 1.0 x 10-5 M is 5.

Therefore, the substance contains more of hydrogen ions.

Learn more about pH at: brainly.com/question/940314

6 0

2 years ago

Question 1<br>How many atoms are there in 0.3 mol of<br>sodium? [L = 6.02 x 102 mot')

Aleksandr [31]

Answer:

<h2>1.806 × 10²³ atoms</h2>

Explanation:

The number of sodium atoms can be found by using the formula

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 0.3 × 6.02 × 10²³

We have the final answer as

<h3>1.806 × 10²³ atoms</h3>

Hope this helps you

5 0

3 years ago

SHOW WORK

Mademuasel [1]

Answer: Molarity of the solution: 0.12

Molarity of sulfate ion: 0.360

Molarity of aluminum ion: 0.240

Explanation:

I’m not sure if that’s what you’re looking for

6 0

3 years ago

How are thing measured using the metric system

maks197457 [2]

Answer: The metric system is a system of measurement that uses the meter, liter, and gram as base units of length (distance), capacity (volume), and weight (mass) respectively. To measure smaller or larger quantities, we use units derived from the metric units.

3 0

2 years ago

Suppose that 1.15 g of rubbing alcohol (C3H8O) evaporates from a 65.0-g aluminum block. If the aluminum block is initially at 25

Naily [24]

Answer:

The final temperature is 10.2 °C

Explanation:

Step 1: Data given

Mass of C3H8O = 1.15 grams

Mass of an aluminium block = 65.0 grams

Initial temperature = 25.0 °C

Molar mass of C3H8O = 60.1 g/mol

Heat of vaporization of the alcohol at 25 °C is 45.4 kJ/mol

Specific heat of aluminium at 25°C = 0.900 J/g°C

Step 2: Calculate moles of C3H8O

Moles C3H8O = mass C3H8O / molar mass C3H8O

Moles C3H8O = 1.15 grams / 60.1 g/mol

Moles C3H8O = 0.0191 moles

Step 3: Calculate heat

Q = 45.4 kJ/mol * 0.0191 moles = 0.867 kJ = 867 Joules

Step 4: Calculate ΔT

Q = m*c*ΔT

⇒ Q = the heat transfer = 867 J

⇒ m = the mass of aluminium = 65.0 grams

⇒ c = the specific heat of aluminium = 0.900 J/g°C

⇒ ΔT = The change of temperature = TO BE DETERMINED

867 J =65.0 g *0.900 J/g°C * ΔT

ΔT = 867 / (0.900*65.0)

ΔT = 14.8

Step 5: Calculate the final temperature

ΔT = T2 - T1

14.8 = 25.0 - T1

T1 = 25.0 - 14.8

T1 = 10.2 °C

The final temperature is 10.2 °C

7 0

4 years ago