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Amanda [17]
3 years ago
13

List 3 household items. Identify 2 physical properties of each item.

Chemistry
2 answers:
ioda3 years ago
3 0

Answer:

Water

Explanation:

Solid, liquids, and gases: Water can exist in several states, including ice (solid), water (liquid), and water vapor (gas). color (intensive)

density (intensive)

volume (extensive)

mass (extensive)

boiling point (intensive): the temperature at which a substance boils

melting point (intensive): the temperature at which a substance melts

OLga [1]3 years ago
3 0

Answer:

Spoon: White in color, smooth

Electric Fan: Metallic body, rough surface

Chair: Light in weight (10 pounds), brown in color

Explanation:

Physical properties are properties that can be measured and comprehend using the five senses. This includes properties that you can see, touch, smell, taste and/or hear.

Then three household items with their physical properties are as follows

  1. Spoon: White in color, smooth, tough, fixed shape
  2. Electric Fan: Metallic body, rough surface, green in color, jarring sound
  3. Chair: Light in weight (10 pounds), brown in color, area of 1 sq meter

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Maru [420]

Answer:

a

Explanation:

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4 0
3 years ago
Please help! It's chemistry question
SashulF [63]
It looks like it is going by 25's so I would say 22.75 mL
3 0
3 years ago
7. How many formula units are equal to a 0.25 g sample of Chromium (III) sulfate,
ryzh [129]

Answer:

38.541 × 10¹⁹ formula units

Explanation:

Given data:

Mass of chromium sulfate = 0.25 g

Formula units in 0.25 g = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 × 10²³ formula units of water

Number of moles of chromium sulfate =  Mass / molar mass

Number of moles of chromium sulfate = 0.25 g/ 392.16 g/ mol

Number of moles of chromium sulfate = 6.4 × 10⁻⁴ moles

Number of formula units:

1 mole = 6.022 × 10²³ formula units

6.4 × 10⁻⁴ moles × 6.022 × 10²³ formula units / 1 mol

38.541 × 10¹⁹ formula units

7 0
3 years ago
Zn + 2HCI --> ZnCl2 + H2
Elena-2011 [213]
Moles= mass\ relative formula mass(Ar)
moles of zinc= 7.9/30= 0.263
so we have 0.263 moles of zinc, and you need twice the amount of chlorine so therefore 0.526moles of chlorine= 0.526x 17=8.942g of chlorine
i cba to work the rest out but the most reasonable answer is 0.24 mol however if you need to use working outs, use the formula i provided earlier
8 0
3 years ago
Which of the following electron configurations correspond to an excited state? Identify the atoms and write the full, ground sta
Aleksandr [31]
I think it’s 1s22s23p1 not sure doe
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