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3 years ago

For the following incomplete combustion reaction, what are the coefficients necessary to balance the equation:

Chemistry

1 answer:

Alexxandr [17]3 years ago

6 0

Answer: A

Explanation:

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What is the mass of 1.71 ✕ 1023 molecules of h2so4?

Anuta_ua [19.1K]

The equation for calculating a mass is as follows:

m=n×M

Molar mass (M) we can determine from Ar that can read in a periodical table, and a number of moles we can calculate from the available date for N:

n(H2SO4)=N/NA

n(H2SO4)= 1.7×10²³ / 6 × 10²³

n(H2SO4)= 0.3 mole

Now we can calculate a mass of H2SO4:

m(H2SO4) = n×M = 0.3 × 98 = 27.8 g

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4 years ago

M → M+ + e- reduction or oxidation?

Julli [10]

That would be oxidation.

Oxidation is loss of electrons
Reduction is gain of electrons

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3 years ago

Which of the following is a common industrial use for a mineral? (2 points)

Lena [83]

Answer:

a common industrial use for a mineral is:

Explanation:

Typical examples of industrial rocks and minerals are limestone, clays, sand, gravel, diatomite, kaolin, bentonite, silica, barite, gypsum, and talc.

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4 years ago

Three quantum numbers are derived from Schrodinger’s equation that describe the probability of finding an electron around a nucl

hodyreva [135]

Principle: Orbital size & main energy level

Angular: Orbital shape

Magnetic: Orbital orientation

Orbital size is Principle; main energy level is Principle; shape is Angular; orientation is Magnetic

Principle:

imagine a bullseye. each ring shows how far its from the nucleus

Angular:

0 looks like circle

1 looks like a bowtie

2 looks like a flower or 4 leaf clover

3 looks like multiple lobes

Principle Quantum Number: It describes the size of the orbital and the main energy level. It is represented by n. Where, n = 1,2,3,4....stands for K, L, M, N shell and so on..

Angular momentum Quantum Number : It describes the shape of the orbital. It is represented as 'l'. The value of l ranges from 0 to (n-1). For l = 0,1,2,3... the orbitals are s, p, d, f...

Magnetic Quantum Number : It describes the orientation of the orbitals. It is represented as . The value of this quantum number ranges from . When l = 2, the value of will be -2, -1, 0, +1, +2.

brainly.com/question/16979660

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2 years ago

In what form does the sun's energy arrive on Earth?The physical characteristics of two large predatory animal species are shown

eimsori [14]

Answer:

radiation B species x because short canines are less likely to break.

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3 years ago