Quiz
BTEC First Certificate in Applied Sciences - Chemistry applications
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Perguntas do quiz (22)
1Solution mining is an example of [blank_start]liquid[blank_end] mining.
- Aliquid
2The boiling point of Oxygen is -196ºC
- AVerdadeiro
- BFalso
3The formula for Ammonia is NH3?
- AVerdadeiro
- BFalso
4The formula for sodium sulfate is Na2CO3?
- AVerdadeiro
- BFalso
5a [blank_start]vacuum[blank_end] is an example of nothing.
- Avacuum
6If lithium has an atomic number of 3 and a mass number of 7, the correct number of protons, neutrons, and electrons, respectively, is:
- A3, 4, 3
- B4, 3, 3
- C3, 3, 4
- D4, 4, 3
7If Magnesium has an atomic number of 12 and a mass number of 24, the correct number of protons, neutrons, and electrons, respectively, is
- A8, 10, 12
- B12, 12, 12
- C12, 24, 12
- D24, 12, 12
8The chemical element number for Potassium is [blank_start]19[blank_end]
- A19
9atomic number = number of [blank_start]protons[blank_end].
- Aprotons
10Which of the following are organic compounds? (3 answers)
- AC2H4
- BNaHCO3
- CC2H5OH
- DCH3COOH
- EC02
- FCuCO3
11Metal atoms form positive ions (cations) by passing [blank_start]electrons[blank_end] to non-metal atoms.
- Aelectrons
12A metal ion has fewer electrons (-) than protons (+), so has an overall positive charge.
- AVerdadeiro
- BFalso
13Metal atoms transfer outer electrons to non-metal atoms, leaving a shell of [blank_start]eight[blank_end].
- Aeight
14Group 1 elements have how many electrons in their outer shell?
- A2
- B1
- C4
- D3
15The chemical number for Manganese (Mn) is
- A15
- B25
- C35
- D45
16When non-metals react with each other they form covalent bonds, not ionic. The atoms share enough [blank_start]electrons[blank_end] to achieve the noble gas structure.
- Aelectrons
- Bprotons
- Cneutrons
- Dcovalent bonds
17Which type of bonding does chlorine gas (Cl2) and ethanol (C2H5OH) have?
- ACovalent
- BIonic
18An ion is
- AA strong atom
- BA weak atom
- CAn atom that has lost or gained electrons
- DAn atom that has lost or gained neutrons
19A compound will have an ionic structure if it is made from
- AAn alkali metal
- BA metal with one or more non-metals
- COnly metals
- DOnly non-metals
20When Sodium reacts with Chlorine, Sodium will
- AShare electrons with Chlorine
- BSwap electrons with Chlorine
- CGive one electron to Chlorine
- DTake one electron from Chlorine
21The giant ionic structure of an ionic compound is called an ionic lattice.
- AVerdadeiro
- BFalso
22Ionic compounds are brittle and shatter when hit.
- AVerdadeiro
- BFalso
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- grodt_uk
- Idioma
- English
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