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3 years ago

Match the correct properties and characteristics of each type of rock?

2 answers:

6 0

Sedimentary- deposition of material on Earth's surface or in bodies of water/ made of hard layers formed under high temperature and pressure

Igneous- cooled magma/ has a shiny surface throughout

Metamorphic- made of layers that are weathered relatively easily/ arises from transformation of existing rocks

Lelu [443]3 years ago

5 0

Sedimentary -deposition of material on Earth’s surface or in bodies of water
igneous- cooled magma
metamorphic-made of hard layers formed under high temperature and pressure

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Explain how percent yield is calculated

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Actual yield/theoretical yield x 100

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3 years ago

What is the volume of 3.00 mole of ideal gas at 100.0 C and 2.00 kPa

Novosadov [1.4K]

Answer:

The volume for the ideal gas is: 4647.5 Liters

Explanation:

Formula for the Ideal Gases Law must be applied to solve this question:

P . V = n . R . T

We convert the T° to K → 100°C + 273 = 373 K

We convert pressure value from kPa to atm.

2 kPa . 1atm/101.3 kPa = 0.0197 atm

We replace data in the formula.

V = ( n . R . T) / P → (3 mol . 0.082 . 373K) / 0.0197 atm =

The volume for the ideal gas is: 4647.5 Liters

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3 years ago

A runner runs 4339 ft in 7.45 minutes. What is the runner's average speed in miles per hou 6.62 mi/hr O 0.110 mi/hr 6.618 mi/h e

slavikrds [6]

Answer: The average speed of the runner is 6.618 miles/hr

Explanation:

Average speed is defined as the ratio of total distance traveled to the total time taken.

To calculate the average speed of the runner, we use the equation:

$\text{Average speed}=\frac{\text{Total distance traveled}}{\text{Total time taken}}$

We are given:

Distance traveled = 4339 ft

Time taken = 7.45 mins

Putting values in above equation, we get:

$\text{Average speed of runner}=\frac{4330ft}{7.45min}=582.42ft/min$

To convert the speed into miles per hour, we use the conversion factors:

1 mile = 5280 ft

1 hr = 60 mins

Converting the speed into miles per hour, we get:

$\Rightarrow \frac{528.42ft}{min}\times (\frac{1miles}{5280ft})\times (\frac{60min}{1hr})\\\\\Rightarrow 6.618mil/hr$

Hence, the average speed of the runner is 6.618 miles/hr

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