Ask question

Ask question

All categories

3 years ago

5

Compared to other minerals, a mineral that is ranked higher on the moh’s scale will be:

1 answer:

skad [1K]3 years ago

3 0

The choices here are:
<span> a. harder c. more dense b. shinier d. more reactive

The answer is "harder".
The Moh's Scale is also known as the </span><span>Mohs scale of mineral hardness. This scale is basin gon the ability of one certain material to visibly scratch another material. 1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Feldspar 7 Quartz 8 Topaz 9 Corundum 10 Diamond.</span>

You might be interested in

What is the formula for the percent of an element in a compound

My name is Ann [436]

The percent composition of a compound is calculated with the molecular formula: divide the mass of each element found in one mole of the compound by the total molar mass of the compound

4 0

3 years ago

One side of a plane wall is held at 200°C while the other side is exposed to a convective environment having T10°C and h 100 W/m

adelina 88 [10]

Answer:

$\frac{\dot Q}{A} = 151.33 W/m^2$

$T_c = 25.153°C$

Explanation:

Given data:

one side wall temperature 200°C

other side wall temperature 10°C

h = 100 W/m^2 °C

k = 2.6W/m °C

wall thickness L = 30 cm

we know that heat flux is given as

$\frac{\dot Q}{A} = \frac{ T_A - T\infty}{\frac{L}{K} + \frac{1}{h}}$

$\frac{\dot Q}{A} = \frac{ 20- 10} {\frac{0.30}{2.6} + \frac{1}{100}}$

$\frac{\dot Q}{A} = 151.33 W/m^2$

$1515.33 W/m^2 = \frac{ T_A - T_c}{\frac{L}{K}}$

solving for temperature for cold surface is given as

$T_c = -1515.33 \times \frac{0.3}{2.6} + 200$

$T_c = 25.153°C$

8 0

3 years ago

A balloon contains a fixed amount of helium. If the initial conditions are 1.12 liters, 3.00 atmospheres, and 19 degrees Celsius

Semmy [17]

Answer:

The final volume will be 3.39 liters

Explanation:

P1V1/T1 = P2V2/T2

P1 = 3 atm

T1 = 19( degrees celsius) + 273 = 292 K

V2 = TO BE DETERMINED

P2 =1 atm

T2 = 22( degrees celsius) + 273 = 295 k

P1V1/T1 = P2V2/T2

V2 = P1V1T2/P2T1 = (3)(1.12)(295)/(1)292) = 3.39 Liters

4 0

3 years ago

Which element is heavier lead or flourine

anzhelika [568]

Lead because it’s a type of lead that other things

4 0

3 years ago

A student was given four unknown solutions. Each solution was checked for. conductivity and tested with. phenolphthalein. The re

777dan777 [17]

Answer: (3) C

Explanation:

4 0

3 years ago