To complete the reaction: acid + carbonate → salt + carbon dioxide + ?, we must add the word:
3. Question | Social Studies
THE ITEM is based on the following extract.
Unemployment and hard economic conditions have forced both parents in some Caribbean families to migrate, leaving an elder son or daughter to care for the younger brothers and sisters.
Which of the following problem is LEAST likely to affect the younger brothers and sisters?
4. Question | Biology
A collection of several tissues which carry out a particular function is called:
5. Question | English A
Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.
June prefers to lie in bed not wanting to go to school nor does any work.
6. Question | Biology
Water is lost from the body in:
7. Question | Chemistry
When metals react with acids they give a salt and:
8. Question | Information Technology
Which of the following items is not a component of a graphical user interface?
9. Question | Physics
Which one of the following would NOT give rise to a systematic error in an experiment?
10. Question | Social Studies
In many Caribbean countries the Queen of England is the head of state.
Such countries may be described as
11. Question | Chemistry
Dividing the mass in grams by the mass of 1 mole in grams gives:
12. Question | Information Technology
Which of the following acronyms represents a computer bus primarily designed for the transfer of data between a computer system and a mass storage device?
13. Question | Biology
A species of mouse has 32 chromosomes in its muscle cells.What will be the numbers of chromosomes in the mouse′s skin cells and sperm cells?
14. Question | Chemistry
When dilute sulphuric acid is electrolysed the two gases produced are hydrogen and:
15. Question | Chemistry
We use expanded polystyrene cups for heat of reaction experiments because the cups are:
16. Question | Chemistry
The metal used in food containers whose surface is protected by a strong oxide layer is:
17. Question | Biology
When a person who has diabetes injects himself with insulin it:
18. Question | Chemistry
The group of elements whose molecules and atoms are the same is called:
19. Question | Principles Of Accounts
John Smith is employed at $8 per hour, he is paid time and a half for hours of work excess Of 44 hours per week. Last week worked for 50 hours. His gross earnings were