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hram777 [196]
3 years ago
13

Explain five physical and/or chemical properties that you need to consider for the substances before using them as construction

materials for buildings
Chemistry
1 answer:
kirill [66]3 years ago
3 0

Answer:  There are many properties of a metal which is taken into consideration when it is used for construction

Explanation:

The properties can be physical, chemical, et cetera. The physical properties that is considered are:

1. Durability:  It can be defined as the property of the material to withstand the atmospheric pressure and other factors.

2. Density: The ratio of mass by volume of a material (homogeneous material) is called as density.

3. Fire resistance: The ability of the material to withstand in fire without changing its size or shape.

4. Weather resistance: The ability of the material to withstand the weather which could be variable round the year.

5.Water absorption: The ability of the material to absorb water and retain it.

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Most cars need tires filled to 32.0 - 35.0 psi. Your tires are filled to 32.1 psi at the beginning of the month where the temper
bogdanovich [222]

Answer: No it is not safe to drive on.

Explanation:

To calculate the final pressure of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are the initial pressure and temperature of the gas.

P_2\text{ and }T_2 are the final pressure and temperature of the gas.

We are given:

P_1=32.1psi\\T_1=12.5^0C=(273+12.5)K=285.5K\\P_2=?psi=27.5psi\\T_2=-3.1^0C=(273-3.1)K=269.9K

Putting values in above equation, we get:

\frac{32.1}{285.5K}=\frac{P_2}{269.9}\\\\P_2=30.3psi

As the pressure lies below the recommended range of 32.0-35.0 psi. Thus it is not safe to drive on

7 0
3 years ago
The first plant to grow in new environments are usually
lidiya [134]
Its going to he b.grasses because most animals eat grass
5 0
3 years ago
When a cold pack is used, ammonium chloride mixes with water and energy is absorbed from the water to reduce the temperature of
Leto [7]
I think the answer is Endothermic. Since the question says "absorbs," endo means to "go in" sort of and exo means to exit.

exo = exit
endo = enter
(A trick my teacher taught us)

Sorry if I'm wrong, hope I helped. :)
7 0
3 years ago
Read 2 more answers
Why is carbon dioxide called a gas and not vapour?
Afina-wow [57]

Explanation:

CO2 is called as gas because it exist in single thermodynamics state i.e CO exist in gases state only at room temperature.

5 0
3 years ago
Based on the electron configuration of the elements below, answer the question. <img src="https://tex.z-dn.net/?f=%5E%7B12%7D_6C
maks197457 [2]

Answer:

The answer to your question is 12

Explanation:

Data

Number of electrons in Phosphorus 3+ ion

Process

1.- The sign of the number after the name indicates if the element has lost or gained electrons.

If the sign is positive the element has lost electrons

If the sign is negative the element has gained electrons.

2.- Phosphorus atomic number is 15, then the number of electrons in Phosphorus 3+ will be 12, in this example, Phosphorus lost 3 electrons.

4 0
3 years ago
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