Q: What do they call 2,2,4-trimethylpentane in the gasoline industry? Choices: - spirogyra - methane - xerophyte - isooctane A:
isooctane

(Question)
Q: What happens do the sound during a resonance? Choices: - it becomes quieter - it dissipates - it echoes - amplified, it becomes louder A:
(Answer)
amplified, it becomes louder

Ques: Q: What is the representative particle in pure metals? Choices: - neutron - electron - quark - the atom A:
Ans: the atom

(Q).
Q: Blood helps maintain homeostasis by stabilizing ph, temperature, osmotic pressure, and by eliminating this? Choices: - toxins - acid - water - excess heat A:
(A).
excess heat

Ques:Q: Snippet 2: one of the reasons the periodic table is so useful is because its structure allows us to qualitatively determine how some properties of the elements vary versus their position on the periodic table. the variation of properties versus position on the periodic table is called what? Choices: - chemical trends - gravity trends - acoustic trends - periodic trends A:

Ans:periodic trends

Q: What is the largest of the sinuses? Choices: - Maxillary sinus - Sphenoid sinus - Frontal sinus - superior sagittal sinus A:
superior sagittal sinus