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Oxana [17]
3 years ago
8

Many earthquakes occur along the edges of continents that surround the Pacific Ocean. This area is called the Pacific Ring of Fi

re. Why does this region have so many earthquak
O A. The water in the Pacific Ocean is very heavy and pushes down on the Earth.
O B. Landslides are common along the steep Pacific Ocean coastlines.
O C. Plate boundaries occur along the edges of the Pacific Ocean.
OD. Strong typhoons are common in the Pacific Ocean.
Chemistry
1 answer:
Andreyy893 years ago
5 0

Answer:

c

Explanation:

the plate tectonics collide there a lot

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Calculate the number of moles of Cl atoms in 3.01×1024 formula units of magnesium chloride, MgCl2.
natta225 [31]
Answer: 10 moles
To find how many moles, you need to divide the number of atoms with 6.02 * 10^23. Since every magnesium chloride has two chlorine atoms, you need to multiply it by 2. The calculation would be:  3.01×10^24  * 2 / 6.02 * 10^23= 10 moles
8 0
3 years ago
Read 2 more answers
A laboratory experiment requires 250 millimeters of water for boiling. It also requires 100 millimeters of water for a cooling p
Wewaii [24]

Answer:

1.05 L

Explanation:

There is some info missing I think this is the original question.

<em>A laboratory experiment requires 250 millimeters of water boiling. it also requires 100 mills of water for a cooling process. If a student performs the experiment three times, how much total water will the student need? Give your answer in liters.</em>

<em />

Step 1: Calculate the volume required for each experiment.

The volume required is the sum of the volumes used: 250 mL + 100 mL = 350 mL

Step 2: Calculate the volume required for the 3 experiments

We have to multiply the volume required for each experiment by 3.

3 × 350 mL = 1050 mL

Step 3: Convert the volume to liters

We use the relation 1 L = 1000 mL.

1050 mL × (1 L/1000 mL) = 1.05 L

7 0
3 years ago
When a glucose molecule loses a hydrogen atom in an oxidation-reduction reaction, the glucose molecule is ________
sineoko [7]

Answer:

Important

Explanation:

3 0
3 years ago
The mass of ethylene glycol (molar mass 62.1 g / mol), the main component of the antifreeze, must be added to 10.0 L of water to
ser-zykov [4K]
<h2> refer the attachment</h2>

<h2>If it is correct so mark as brainlest answer!</h2>

7 0
2 years ago
A 200 mL K2SO4 solution with a concentration of 0.40 M is mixed with 400 mL of a K2SO4 solution containing 7% K2SO4 (m/v). The m
Olegator [25]

Answer:

The final concentration in molarity (M) is 0.4

Explanation:

K₂SO₄ (Potassium sulfate) - Molar mass = 174.3 g/m

First of all, we have 200 mL, 0.4 M

Molarity . volume = mol

(mol/L) . L = mol → 0.4 mol/L . 0.2L = 0.08 moles of salt, in the beginning.

In second situation we have 7% m/v of salt, which means that in 100 mL of solution, we have 7 grams of solute.

7 g / 174.3 g/m = 0.040 moles in 100 mL

Let's think the rule of three:

In 100 mL we have 0.04 moles of salt

in 400 mL we have (400 . 0.04)/100 = 0.16 moles

1st situation: 0.08 moles of salt

2nd situation: 0.16 moles of salt

Total moles = 0.08 + 0.16 = 0.24 moles

Total volume = 200 mL + 400 mL = 600 mL

Molarity = mol/L

0.24 mol / 0.6L = 0.4M

7 0
4 years ago
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