2772744
Beschreibung
Quiz von ellamay947, aktualisiert more than 1 year ago
|
Erstellt von ellamay947
vor mehr als 9 Jahre
|
|
Frage 1
Frage
What is the most likely PH when you mix acidic milk and alkali egg white?
Antworten
-
pH2
-
pH6
-
pH7
-
pH14
Frage 2
Frage
What is the effect of putting a burning splint in oxygen?
Antworten
-
The flame will get bigger.
-
It will make a popping sound.
-
No reaction.
Frage 3
Frage
Give a substance which is almost neutral/ neutral.
Antworten
-
Johnson's pH 5.5 face wash.
-
Facial wash with a pH of 7.3
-
Body wash with a pH of 10
Frage 4
Frage
Tick the correct word equation for nitric acid reacting with sodium hydrocarbonate.
Antworten
-
sodium hydrocarbonate + nitric acid = carbon monoxide + water +hydrogen
-
sodium hydrocarbonate + nitric acid = carbon dioxide + water + sodium nitrate
Frage 5
Frage
Tick the correct chemical equation for the chemical reaction in the clear blue flame.
Antworten
-
methane + flame = fire + oxygen
-
methane + oxygen = carbon dioxide + water
Frage 6
Frage
Tick the correct word equation for magnesium reacting with air.
Antworten
-
magnesium + flame = bright light
-
magnesium + nitrogen = magnesium nitrate
-
magnesium + oxygen = magnesium oxide
Frage 7
Frage
In which gas does magnesium immediately go out?
Antworten
-
Air
-
Exhaled air
-
Nitrogen
-
Oxygen
Frage 8
Frage
Why does magnesium go out in a jar of exhaled air?
Antworten
-
Because oxygen thins the flame.
-
Because carbon dioxide contains nitrogen.
-
Because the air we exhale contains carbon dioxide and carbon dioxide puts out fires.
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.