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Zepler [3.9K]
3 years ago
5

30. How many types of chemical reactions are there?

Chemistry
2 answers:
Nadusha1986 [10]3 years ago
8 0

Answer:

B. Five

Hope this helps........

zhenek [66]3 years ago
3 0

B Five Is the correct answer

mark me as brilliant

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Vaporized water is also known as
viva [34]

Answer:

fog

Explanation:

4 0
3 years ago
Why is oxygen an element ? a it is essential to life b it burn c it combines with hydrogen d it cannot be broken down into a sim
MrRa [10]
D.) It cannot be broken down into a simple substance through chemical means...
5 0
3 years ago
Read 2 more answers
Barium has a body-centered cubic structure. If the atomic radius of barium is 222 pm, calculate the density of solid barium?
Flauer [41]

Answer: density =3.377g/cm³

Explanation:

Density =( molecular weight × effective number of atoms per unit cell) / (volume of unit cell × avogadro constant)

D= (M ×n) /(V×A)

M= 137g/mol

n= 2 (For BCC)

V=a³ , where a= 4r/√3

a= (4×222)/√3

a=512.69pm

a= 512.69×10^-10cm

V= ( 512.69×10^-10)^3

V= 1.3476×10^-22cm³

D= (137×2)/(1.3476×10^-22 × 6.02^23)

D= 3.377g/cm³

Therefore the density of barium is 3.377g/cm³

5 0
3 years ago
If you have a mass of 60 kg on earth, what is your weight in newtons?
AnnyKZ [126]
To calculate your weight in Newton's simply use the following equation to solve for the weight.

Fg = m • g
Fg = 60 kg • 9.81 m/s^2
Fg = 588.6 kgm/s^2

Fg = 588.6 N.

Acceleration due to gravity on earth is 9.81 m/s ^2.
8 0
3 years ago
Which Carbon is the triple bound attached to in 6-ethyl-2-octyne?
soldi70 [24.7K]

Answer:

-second

Explanation:

6-ethyl-2-octyne is an unsaturated compound with a triple bond.

6-ethyl-2-octyne will have a triple bound attached to the second carbon. The suffix -yne suggests that compound carry a triple bond and the number  "2" before suffix refers to the position of triple bond that is second carbon.

Hence, the correct option is  "-second ".

7 0
3 years ago
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