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3 years ago

What is produced when iron-bearing silicate minerals in the desert landscape oxidize?

2 answers:

6 0

When Iron-bearing silicate minerals in the desert landscape oxidize; it will produce a color to the stones and soils that looks like a rust color. Oxidize means an element is chemically combined with oxygen. So in this situation, the Iron bearing silicate minerals was chemically combined with oxygen, that’s why it produces a rust colored stain. It is called as rust colored stain because it basically looks like a rust stain, it is color orange that caused stain the stones and sands in the desert.

Sedbober [7]3 years ago

5 0

The rust-colored stain that tints some desert rocks and soil

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Acetylene, C2H2, burns according to the following reaction: C2H2 5O2 --> 4CO2 2H2O. Suppose 1.20 g of C2H2 is mixed with 3.50

OLEGan [10]

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8 0

2 years ago

73.5 mol of P4O10 contains how many moles of P ? moles of P:

Sholpan [36]

Answer:

294 moles of P

Explanation:

For every 1 mol of P4O10 contains 4 mol of P

so;

73.5 mol P4O10 × 4 mol P

1 mol P4O10

= 73.5 × 4

= 294 moles of P

7 0

2 years ago

How many atoms are in 2.10 g of K? molar mass of K=39.10g/mole.

Alborosie

Answer:

<h3>The answer is option B</h3>

Explanation:

To calculate the number of atoms we must first calculate the number of moles

Molar mass = mass / number of moles

number of moles = mass / Molar mass

Molar mass (K) = 39.10mole

mass = 2.10g

number of moles = 2.10/ 39.10

= 0.0537mol

After that we use the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10^23 entities

Number of K atoms is

N = 0.0537 × 6.02 × 10^13

<h3>N = 3.23×10^22 atoms of K</h3>

Hope this helps you.

5 0

3 years ago

What form of energy does a glue gun produce when turned on?

jok3333 [9.3K]

The answer is heat.

To use a glue gun, it has to use heat to heat up so that it can melt the glue.

4 0

2 years ago

Why do we need to use moles when we try to determine amounts of reactants and products in a reaction?.

ICE Princess25 [194]

$\huge\fbox{Answer ☘}$

Chemists use the mole unit to represent 6.022 × 10 23 things, whether the things are atoms of elements or molecules of compounds. This number, called Avogadro's number, is important because this number of atoms or molecules has the same mass in grams as one atom or molecule has in atomic mass units.

hope helpful~

8 0

2 years ago