Q: What is the role of the sodium ion in the neutralization reaction of sodium flouride? Choices: - reflection ion - circuit ion - team ion - spectator ion A:
spectator ion

(Question)
Q: What are flightless birds that are strong swimmers and spend much of their time in the water? Choices: - Emus - Ostriches - Cassowaries - penguins A:
(Answer)
penguins

Ques: Q: Single-displacement reactions are a subset of what? Choices: - gravitational reactions - kinetic reactions - particle reactions - redox reactions A:
Ans: redox reactions

(Q).
Q: What does interstellar medium consist of? Choices: - gravitational waves - the strong force - dark matter - thinly spread gas and dust A:
(A).
thinly spread gas and dust

Ques:Q: Bonding in molecules with resonance forms is better described by which theory? Choices: - Geiger theory - string theory - Pascal's theory - molecular orbital theory A:

Ans:molecular orbital theory

Question: Q: What is the name of anything that has mass and takes up space? Choices: - solid - carbon - depth - matter A:
Answer:
matter