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4 years ago

How is the volume of an object measured?

Chemistry

1 answer:

ziro4ka [17]4 years ago

7 0

Answer:

The volume of an object is measured by cubic inches, cubic feet, cubic yards are all units used for measuring volume.

Explanation:

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Substances that are composed of a network of atoms held together by covalent bonds are called

iogann1982 [59]

Answer:

giant covalent structures

Explanation:

Covalent solids are made up of atoms joined to one another by covalent bonds to form a giant lattice. The covalent bonds are very strong, this makes the giant covalent solids to be hard and possess high melting points. Covalent solids are nonconductors of electricity due to the absence of free electrons in the structure.

Diamond, graphite and boron nitride are all examples of giant covalent structures.

7 0

3 years ago

Please help!!

LekaFEV [45]

Answer:

d=0.4cm

t=0.25km

v=7s of 100m

i hope it helps you

this is my asnwer

correct me if im wrong

#carryonlearning

4 0

3 years ago

What tells the number of protons in the nucleus of every atom of an element

harina [27]

The atomic number is the protons.
Also, the atomic number subtracted by the neutrons are the protons.<span />

7 0

3 years ago

The exhaust gas from an automobile contains 1.5 percent by volume of carbon monoxide. What is the concentration of CO in mg/m' a

FrozenT [24]

Answer:

(a) 17,178 mg/m3

(b) 11,625 mg/m3

Explanation:

The concentration of CO in mg/m3 can be calculated as

$C (mg/m3) =(P/RT)*MW*C_{ppm}$

For standard conditions (1 atm and 25°C), P/RT is 0.0409.

Concentration of 1.5% percent by volume of CO is equivalent to 1.5*10,000 ppm= 15,000 ppm CO.

The molecular weigth of CO is 28 g/mol.

(1) For 25°C and 1 atm conditions

$C=(P/RT)*MW*C_{ppm}\\\\C=0.0409*28*15,000=17,178$

(b) For 200°C and 1.1 atm,

$P/RT=0.0409*(P/P_{std})*(T_{std}/T)\\P/RT=0.0409*(1.1atm/1atm)*(273+15K/273+200K)=0.0277$

Then the concentration in mg/m3 is

$C=(P/RT)*MW*C_{ppm}\\\\C=0.0277*28*15,000=11,625$

5 0

3 years ago

who else has found that something they did or readed or whatever it is they had completely forgot about and just remembered abou

Dominik [7]

Answer:

Yes I do this a lot :)

Explanation:

6 0

3 years ago