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3 years ago

Look this is a weird question to ask but am asking it anyways

Chemistry

2 answers:

Gwar [14]3 years ago

5 0

Answer:Leave him alone until he is single. Respect people in relationships. You will want the same when your in one.

Explanation:

natali 33 [55]3 years ago

3 0

You can wait until he either breaks up (if he does) or if just forget about him and go for another guy.

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A scientist observes several metals and records the followinv data.which of the data sets represents qualitative data?A The máss

Strike441 [17]

The answers C and D are correct.

4 0

3 years ago

List 4 physical properties of each of the following:

OLEGan [10]

<span>Copper wire - Tensile strength. Coefficient of thermal expansion, Thermal conductivity, Corrosion resistance.

500g of Butter - density, volume, color and smell

Glass of Milk - white color, smell, taste and volume

Candle - size, shape, color and density

Piece of Aluminum foil - melting point, electrical conductivity, thermal conductivity, electrical resistivity

Spoon of sugar - texture, melting point, boiling point, color

Toothpaste - taste, smell, abrasiveness, cohesiveness</span>

4 0

3 years ago

Please this is important

ValentinkaMS [17]

Answer:

Explanation:

2C6H6 + 9O2 -> 12CO2 + 6H20

Weight of a CO2 Mol 12+ 16x2 = 44g

In 100g number of moles = 100/44= 2.2727 Moles

Number of C6H6 2moles burned when creating 12 moles of CO2

Therefore 2.2727/12 x 2 = 0.3787

3H2SO4 + 2Al(OH)3 -> Al2(SO4)3 + 6H2O

H2O weight of a 1mol is = 2+16 = 18g

2moles of Al(OH)3 cerates 6 moles of water.

3moles of sulfuric creates 6 moles of water.

5.5moles Al(OH)3 reacts with 5.5 moles of sulfuric

Therefore number of water moles = 5.5/3 x 6 = 11moles

Weight water = 11 x 18 = 198g

Cu + 2AgNO3 -> 2Ag + Cu(NO3)2

1mol of Cu produces 2moles of silver

Ag = 107.86 g/Mol

Cu = 63.54 g/Mol

In 26g Ag number of moles = (26/107.86)/2 x 63.54 = 7.658g

3K2CrO4 + 2AlPO4 -> 2K3PO4 + Al2(CrO4)3

K2CrO4 = 39x2 + 52 + 16x4 = 194g/Mol

Al2(CrO4)3 = 54 + 354 = 408g/Mol

3moles of K2CrO4 creates 1mol of Al2(CrO4)3

Therefore weight of the Al2(CrO4)3 produced by 17.5g potassium chromate

(17.5/194)/3 moles of Al2(CrO4)3 produced = 0.03moles

Al2(CrO4)3 produced = 0.03 x 408 = 12.26g

7 0

3 years ago

3. What is the hydrogen ion concentration of a solution with a pH of 2.0?

Vlada [557]

Answer:

[H+] = 10^-2

Explanation:

pH = -log[H+]

2 = -log[H+]

[H+] = 10^-2

4 0

2 years ago

What is the purpose of a pipe rack in chemical process?

kondaur [170]

Answer:

Pipe racks are construction in chemical and other industries plants, that support the pipe line, electric cables and instrument cable.

Explanation:

The pipe racks also used to support mechanical equipment as valve and vessels. You can transfer material between equipment and sorage or utility areas. Pipe racks aren´t only non-building constructions that have similiraties to the Steel buildings but also have additional loads style. The requirements found in the building codes apply and dictate some of the design requirements.

Some industry references exist to help the designer apply the intent of the code and follow expected engineering practices.

Pipe racks have design criteria: In most of the United States, the governing building code is the International Building Code.

Includes:

*Dead Loads

*Live Loads

*Thermal Loads

*Earthquake Loads

*Wind Loads

*Rain Loads

*Snow Loads

*Ice Loads

*Load Combinations

Also have Design Considerations:

*Layout

*Seismic

*Seismic System Selection

*Period Calculations

*Analisys Procedure

*Selection

*Equivalent Lateral Force Method Analysis

*Modal Response Spectra Analysis

*Drift

*Seismic Detailing Requirements

*Wind

*Pressures and Forces

*Coatings

*Fire Protection

*Torsion on Support Beams

6 0

3 years ago