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mr Goodwill [35]
2 years ago
9

Take off contact lenses first before using an eye wash station . True or False

Chemistry
2 answers:
katen-ka-za [31]2 years ago
4 0
A true because whatever you’re washing out, will get stuck behind your lenses
ryzh [129]2 years ago
3 0

Answer:

TRUE

Explanation:

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Mendeleev organized the elements:
pashok25 [27]

Answer: (3)

Medeleev arranged elements in order of increasing atomic weight and similar properties

He noticed that similar elements were grouped together by using this.

4 0
3 years ago
Benzene has a specific gravity of 0.88. if it was spilled in a river what would it do?
Gelneren [198K]
As we know,
                    Density of Benzene  =  876 Kg/m³
And,
                    Density of Water       =  997 Kg/m³
So,
     Specific Gravity is calculated as,

                     Specific Gravity  =  Density of Benzene / Density of Water

                     Specific Gravity    =   876 Kg/m³ / 997 Kg/m³

                     Specific Gravity    =  0.878

Every object having specific gravity less than 1 will float on water and if value is greater than 1 then it will sink.

Benzene being non-polar in nature does not mix with water and due to less density it will float on the surface of water.
4 0
3 years ago
How many molecules are in 83.2 g of chlorine gas (Cl2)?
Alisiya [41]

Answer:

1. 1.8 mol or the 2 one (B)

Explanation:

5 0
2 years ago
Electrons spill in shells in the nucleous the closest shell (n=1) can contain the maximum of. Electrons
stiks02 [169]
The answer is 2 electrons I believe!
8 0
3 years ago
If the length, width, and height of a box are 10.00 cm, 7.25 cm and 3.00 cm, respectively, what is the volume of the box in unit
Blizzard [7]

<u>Answer:</u>

<u>For a:</u> The volume of the box is 217.5 mL

<u>For b:</u> The volume of the box is 0.2175 L

<u>Explanation:</u>

The box is a type of cuboid.

To calculate the volume of cuboid, we use the equation:

V=lbh

where,

V = volume of cuboid

l = length of cuboid = 10.00 cm

b = breadth of cuboid = 7.25 cm

h = height of cuboid = 3.00 cm

Putting values in above equation, we get:

V=10.00\times 7.25\times 3.00=217.5cm^3

  • <u>For a:</u>

To convert the volume of cuboid into milliliters, we use the conversion factor:

1mL=1cm^3

So,

\Rightarrow 217.5cm^3\times (\frac{1mL}{1cm^3})\\\\\Rightarrow 217.5mL

Hence, the volume of the box is 217.5 mL

  • <u>For b:</u>

To convert the volume of cuboid into liters, we use the conversion factor:

1L=1000cm^3

So,

\Rightarrow 217.5cm^3\times (\frac{1L}{1000cm^3})\\\\\Rightarrow 0.2175L

Hence, the volume of the box is 0.2175 L

3 0
3 years ago
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