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2 years ago

For each ionic compound formula, identify the main group to which X belongs: (a) X3PO4;

Chemistry

1 answer:

Maksim231197 [3]2 years ago

4 0

a) Group 1 is the predominant X group in X3PO4.

The molecule has an oxidation number of 0, O has an oxidation number of -2, P has an oxidation number of +5, and so on.

We have an equation that looks like,

3(x) + 5 + 4(-2) = 0 3x + 5 - 8 = 0\s3x - 3 = 0\sx = 3/3\sx = 1 (Group 1).

Ionic bonding, also known as electrostatic forces, holds ions together in ionic compounds, which are chemical substances.

Ionic bonds make up these molecules.

The total number of electrons that an atom acquires or loses in order to form a chemical bond with another atom is known as the oxidation number.

To know more about oxidation state, refer to this link:

brainly.com/question/20482328

#SPJ4

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Answer:

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Explanation:

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3 years ago

The wall of an industrial furnace is constructed from 0.15-m-thick, fireclay brick having a thermal conductivity of LZ W/m.K. Me

aliya0001 [1]

Answer:

The rate of heat loss through the wall is 1700 watts.

Explanation:

The complete statement of the problem is:

<em>The wall of an industrial furnace is constructed from 0.15-m-thick, fireclay brick having a thermal conductivity of 1.7 W/m·K. Measurements made during steady state operation reveal temperatures of 1400 and 1150 K at the inner and outer sur- faces, respectively. What is the rate of heat loss through a wall that is 0.5 m by 1.2 m on a side?</em>

Given that wall of the industrial furnace is under steady conditions of heat transfer and whose configuration is a flat element, we use the equation of conductive heat transfer rate ( $\dot Q$ ), measured in watts:

$\dot Q = \frac{k\cdot w\cdot h}{l}\cdot (T_{i}-T_{o})$

Where:

$k$ - Thermal conductivity, measured in watts per meter-Kelvin.

$w$ - Width of the wall, measured in meters.

$h$ - Height of the wall, measured in meters.

$l$ - Thickness of the wall, measured in meters.

$T_{i}$ - Inner surface temperature, measured in Kelvin.

$T_{o}$ - Outer surface temperature, measured in Kelvin.

If we know that $k = 1.7 \,\frac{W}{m\cdot K}$ , $w = 1.2\,m$ , $h = 0.5\,m$ , $l = 0.15\,m$ , $T_{i} = 1400\,K$ and $T_{o} = 1150\,K$ , the steady state heat transfer is: