Chemistry in our life
Black or white
To space!
Fingers
Famous guitar riffs
100
A sensor triggers combustion, releasing a large amount of nitrogen. The chemical reaction in this device saves thousands of lives every year.
Airbag
100
More than seven thousand English people still use black-and-white ones: the annual tax is three times lower. What's this all about?
TVs
100
In a photograph from the Cassini-Huygens spacecraft, Saturn obscured this celestial body. 
The Sun
100
An eternally binding act of hooking fingers together in an attempt to seal the deal of a promise that has been made. This children's act has origins in Japan from 1600 to 1803, where it is called yubikiri (指切り; "finger cut-off").
Pinky swear
100
1
Deep Purple - Smoke on the Water
200
In many countries, compounds of this halogen are added to table salt to prevent tooth decay and osteoporosis. Switzerland was the first to do so in 1955.
Fluoride
200
This Chinese reformer summed up his principles in one phrase: "If a cat catches mice, it's a good cat, no matter whether it's black or white." 
Deng Xiaoping
200
On July 14, 2017, a launch vehicle from this family launched 73 satellites into orbit. 
Soyuz
200
A raised thumb is a sign of those who choose this method of transportation.
Hitchhiking
200
2
RHCP - Can't Stop
300
In the 1930s, this beneficial acid began to be added to food products, and to avoid frightening consumers with an "unhealthy" name, a neutral name was coined: niacin.
Nicotinic acid
300
"Without understanding us, you slander and tear;
You call white black on a whim," Pushkin reproached this "cultural worker."
Censor ("Message (to) the Censor")
300
It was this shuttle that delivered the Hubble Space Telescope into orbit, which has made many findings in our Universe.
Discovery
300
Because of its sinister appearance, Archer's Clathrus is called Devil's Fingers. So what is Archer's Clathrus? 
Mushroom
300
3
Guns'n'Roses - Sweet Child O'mine
400
Having discovered this useful property of chlorine, chemist Claude Berthollet established the production of Javel water in the town of Javel near Paris at the end of the 18th century.
Bleaching agent, the ability to whiten fabrics
400
In his etude entitled "Disorder," the avant-garde composer György Ligeti envisioned precisely this "division of labor."
The right hand plays the white keys, the left the black ones (the answer was accepted).
400
Astronomers have named one of the coldest objects in the Solar System Sedna, after the sea-goddess of the Inuit.
Eskimo people
400
Vladislav Khodasevich's father had a sixth finger. It was no coincidence that Khodasevich wrote the poem dedicated to his father in this particular meter.
Dactyl (from Greek, meaning "finger")
400
4
Pat Benatar - Hit Me With Your best Shot
500
Their manufacturers add barium salts or copper chloride for green; strontium and lithium salts produce red, and sodium salts produce yellow.
Fireworks
500
Name the film of Jim Jarmush where the wife of the main character painted literlally everything black&white. 
Paterson
500
Space Jam is a 1996 American live-action animated sports comedy film where many NBA playes were cameos including this former MBA player. He is shortest player ever to play in the National Basketball Association (NBA), the 5 ft 3 in (1.60 m) Although best known for his ten seasons with the Charlotte Hornets, he also played for the Washington Bullets, Golden State Warriors, and Toronto Raptors. 
Muggsy Bogues
500
The three ways of holding the reed—"German," "Franco-Belgian," and "Russian"—differ primarily in how the index finger touches the stick.
Bow (to play the violin)
500
5
Heart - Barracuda