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3 years ago

How can mountain formation be described according to the theory of plate tonics

1 answer:

6 0

Convergent plates slowly come together, and over an amount of time, push together, and one either submerges, or they both buckle. Either way can form a mountain, because either way raises land up to the point where it eventually forms mountains.

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Why do think sand is called sand?

Anastasy [175]

Because is sand idk ‍♀️

8 0

4 years ago

If 0.507J of heat leads to a 0.007 degree C change in water, what mass is present?

Ivanshal [37]

Answer:

17.3 g

Explanation:

Given the following data;

Quantity of heat, Q = 0.507 J
Temperature = 0.007°C
Specific heat capacity of water = 4.2 J/g°C

Mathematically, Heat capacity is given by the formula;

$Q = MCT$

Where;

Q represents the heat capacity or quantity of heat.
M represents the mass of an object.
C represents the specific heat capacity of water.
T represents the temperature.

Making "M" the subject of formula, we have;

$Mass, \ m = \frac {Q}{CT}$

Substituting the values into the formula, we have;

$Mass, \ m = \frac {0.507}{0.007*4.2}$

$Mass, \ m = \frac {0.507}{0.0294}$

Mass, m = 17.3 grams

3 0

3 years ago

5. How would you calculate the pH (NOT POH) of a base when given the concentration of [OHJ?

PIT_PIT [208]

Answer:

pOH = -log₁₀ [OH-]

pH = 14 - pOH

Explanation:

First of all, calculate the value of pOH from the hydroxide concentration do this using the equation below;

pOH = -log₁₀ [OH-]

After obtaining the pOH, calculate pH using the equation below:

pH + pOH = 14

pH = 14 - pOH

3 0

3 years ago

Density = 11g/cm3 volume = 2cm3 what is the mass

jolli1 [7]

<h2>Question:-</h2>

Density = 11g/cm³, volume = 2cm³. What is the mass ?

<h2>Solution:-</h2>

We know,

${ \boxed{\bf{\rm \red {Mass \: = \: Density \: × \: Volume}}}}$

So, Mass = 11g/cm³ × 2cm³

Mass = 22 g

<h3>The mass is 22 g. [Answer]</h3>

3 0

3 years ago

The solubility of solid W in water is: 1.72 g/100 mL at 0°C, 21.3/100 mL at 100°C. a) How many mL of boiling water are required

grandymaker [24]

Answer:

a) Mass of solid W crystallized out 0°C is 141.564 g

b) 91.92% is the percent recovery.

Explanation:

The solubility of solid W in water at 100°C = 21.3 g/100 mL

Volume of water at 100C required to dissolve 154.0 g of W: x

$\frac{154.0 g}{x}=\frac{21.3 g}{100 mL}$

$x=\frac{154.0 g\times 100 mL}{21.3 g}=723.0 mL$

723.0 mL of water will dissolve 154.0 grams of solid W.

The solubility of solid W in water at 0°C = 1.72 g/100 mL

Mass of W soluble in 723.00 mL of water at 0°C = m

$\frac{m}{723.0 mL}=\frac{1.72 g}{100 mL}$

$m=\frac{1.72 g\times 723.0 mL}{100 mL}=12.436 g$

a) Mass of solid W crystallized out 0°C : 154.0 g- 12.436 g=141.564 g

b) Percent recovery of solid at 0°C:

$\frac{141.564 g}{154.0 g}\times 100=91.92\%$

91.92% is the percent recovery.

5 0

3 years ago