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Chapter: 4 / Q: 5
Many drugs are neutralised to form salts and administered in this form. What is the main advantage of administering the salt form of the drug? It is usually:
Chapter: 4 / Q: 6
One of the following is INCORRECT. Which one
Chapter: 4 / Q: 7
Choose the correct statement about hydrogen bonds. They
Chapter: 4 / Q: 8
Given that the atomic mass of nitrogen is 14 and of hydrogen is 1, what is the mass in grams of one mole of ammonia (NH3)
Chapter: 4 / Q: 9
Choose the ending that will correctly complete the sentence: When atoms of a metal element and atoms of a non-metal element react, the result is
Chapter: 4 / Q: 10
In a water molecule, the bond between oxygen (O) and hydrogen (H) is
Chapter: 4 / Q: 11
Some atoms of potassium, K contain 19 protons and 20 neutrons in their nuclei. What is the correct symbol for these atoms
Chapter: 4 / Q: 12
The chemical elements can be divided into metal elements and non-metal elements. Which of the statements about metals and non-metals is correct
Chapter: 4 / Q: 13
24 of the chemical elements are essential to the human body. Four bulk elements, 7 are macrominerals and 13 are trace elements. Which are the four bulk elements
Chapter: 4 / Q: 14
Most non-molecular compounds form by the chemical combination of:
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