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4 years ago

The color of a mineral in powdered form is the mineral"s?

2 answers:

7 0

Streak is the color of the mineral in powdered form. Streak shows true color of the mineral. In large form, trace minerals can change the color appearance of a mineral by reflecting the light in a certain way. Trace miners have little influence on the reflection of the small powdery particles of the streak.

The streak of metallic minerals tends to appear dark because the small particles of the streak absorb the light hitting them. Non-metallic particles tend to reflect most of the light so they appear lighter in color or almost white.

Because streak is a more accurate illustration of the mineral's color, streak is a more reliable property of minerals than color for identification.

noname [10]4 years ago

6 0

The color of a mineral's powdered form is the mineral's streak.

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What is the mass of 22.4L of H2 at stp

bazaltina [42]

Answer:

2.02 g H₂

General Formulas and Concepts:

Chemistry - Atomic Structure

Reading a Periodic Table
Using Dimensional Analysis
STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 K

Explanation:

Step 1: Define

22.4 L H₂ at STP

Step 2: Identify Conversions

STP - 22.4 L / mol

Molar Mass of H - 1.01 g/mol

Molar Mass of H₂ - 2(1.01) = 2.02 g/mol

Step 3: Convert

$22.4 \ L \ H_2(\frac{1 \ mol \ H_2}{22.4 \ L \ H_2} )(\frac{2.02 \ g \ H_2}{1 \ mol \ H_2} )$ = 2.02 g H₂

5 0

3 years ago

9. The molar mass of Na2SO4 is 142.1 g/mol.

Mice21 [21]

Answer:

the Answer is the second one

Explanation:

mole=mass/molar mass

mole=?

molar mass=142.1g/mole

mass=10.0g

4 0

3 years ago

The proton-proton chain ____ (A) combines two hydrogen nuclei to produce a single helium nucleus and energy.(B) splits a helium

emmainna [20.7K]

Answer:

(C) is the mechanism that increases the temperature between the photosphere and corona of the sun.

Explanation:

When a stars is converted from hydrogen to helium then this is known as proton -proton chain reaction.Due to this reaction the temperature between corona of the sun and photosphere increases.The main reason for increasing the temperature is exothermic reaction.

So the option C is correct.

(C) is the mechanism that increases the temperature between the photosphere and corona of the sun.

8 0

4 years ago

What happens when you continue to add a solute to an already saturated solution

dlinn [17]

Answer: nothing. It remains undissolved

Explanation: saturated = dissolved as much solute as solvent can contain

3 0

3 years ago

A carbon atom can form four covalent bonds. How many valence electrons does it have?

pshichka [43]

If a carbon atom can form four covalent bonds, it also has four valence electrons. For neutral atoms, the number of valence electrons the same as an atom's main group number.

8 0

3 years ago