Test
Gcse additional chemistry
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (11)
1 does Exothermic reactions give out more energy when new bonds are made
- AVerdadero
- BFalso
2How many electrons can go in each of the shells around the nucleus?
- A2 in first shell and 8 in the next energy levels
- B7 in the first shell and 10 in the next energy levels
- Cdoes not matter
3what is the atomic number
- Anumber of protons + number of neutrons
- Bnumber of protons
- Cnumber of neutrons
4An ion is an atom or a group of atoms with a [blank_start]positive[blank_end] charge or a [blank_start]negative[blank_end] charge.
- Apositive
- Bnegative
- Cneutral
- Dnegative
- Epositive
- Fneutral
5In endothermic reactions more energy is needed to break bonds of reactions
- AVerdadero
- BFalso
6Sodium gives a [blank_start]yellow/orange[blank_end] flame, potassium gives a [blank_start]lilac[blank_end] flame, calcium gives a [blank_start]brick-red[blank_end] flame and copper gives a [blank_start]blue-green[blank_end] flame.
- Ayellow/orange
- Blilac
- Cbrick-red
- Dblue-green
- Elilac
- Fyellow/orange
- Gbrick-red
- Hblue-green
- Ibrick-red
- Jyellow/orange
- Klilac
- Lblue-green
- Mblue-green
- Nyellow/orange
- Olilac
- Pbrick-red
7Why is barium sulfate safe to drink?
- Abecause its insoluble. ( can't enter the bloodstream)
- Bbecause it is opaque
8why can simple molecular covalent substances not conduct electricity?
- Abecause they have no ions
- Bthey have weak forces between bonds
- Cthey have small molecules
9Ionic bonds form when a metal reacts with a non-metal
- AVerdadero
- BFalso
10covalent bonds form between atoms of non - metal elements
- AVerdadero
- BFalso
11protons relative mass is [blank_start]1[blank_end], neutrons relative masses [blank_start]1[blank_end] and electrons relative mass is [blank_start]-1[blank_end]
- A1
- B+1
- C1
- D0
- E-1
- F-1
- G1
- H0
Información
- Descripción
- GCSE (Chemistry) Science Test sobre Gcse additional chemistry, creado por Oscar Patterson el 14/03/2017.
- Autor
- Oscar Patterson
- Idioma
- English
- Visitas
- 21
- Etiquetas
- Valoración
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