chemistry

____ chloride is used to test for sulfates, gives a white precipitate

arrangement of positive and negative ions in a repeating pattern to form a 3D structure ?

Ions that cause fizzing (effervescence) when added to acid?

Chemical used to test for carbon dioxide goes cloudy/milky?

____ Meal eaten by patients, who are X-raid

Paper in chromatography acts as the _______ phase

Simple covalent structures are often _______ or liquids at room temperature

Colour of copper in a flame test?

Has 1- charge, gives a white precipitate when added to silver nitrate

_______ Dioxide is the gas given off when acid reacts

Scientific word for the positive ion ?

Metal that gives a red flame, has a 1+ charge

Type of bond formed between 2 non- metals a shared pair of electrons.

The paper with the resulting pattern on it after chromatography has finished is _________

A bond with a shared pair of electrons

What is the charge on a non- metal ion?

Type of reaction where two solutions react together to make an insoluble solid

What is a nucleus in an atom?

What is the colour of chloride precipitates also colour of precipitate formed when barium chloride reacts with sulpphate ions?

Ionic compounds conduct electricity only when ______ or dissolved

What is a ionic compounds?

Simple convalent structures don't ______ electricity

Distance of spot/distance of solvent front=RF___

Before evaporation, wash the insoluble solid with ____ water to removes impurities.

Number of covalent bonds around each carbon atom in diamond

Technique used to separate coloured substances

Colour of sodium in flame test (____/orange)

How atoms are arranged in graphite _______ and in layers