Questions tagged 'substances'
7 questions
Which of these substances contains the most total atoms per molecule?
Which of the following substances contains the highest total number of atoms per molecule? a) Na2PFO3 b) H2SO4 c) Ni(NO3)2 d) NbCl5
Which pair of substances could be used to illustrate the laws of multiple proportions?
Which pair of substances could be used to illustrate the laws of multiple proportions? a) NaCl, KCl b) SO₂, H₂SO₄ c) H₂O, O₂ d) CH₄, C₆H₁₂O₆ e) CO, CO₂ Please explain your answer.
Jan 23, 2025
Is Meth the same thing as speed?
I am curious about the relationship between different substances. I've heard that "speed" is often used as a colloquial term for amphetamines. Can you clarify whether crystal meth is the same as speed...
I need a list of things that are slippery?
Hello everyone, I'm currently working on a project that requires a comprehensive list of slippery items or substances. Could you please share as many suggestions as you can think of? The contributor...
Which if the following substances has a pH closest to 7.0?
Which of the following substances has a pH value closest to 7.0? - Lye - Vaginal fluid - Gastric juice - Cerebrospinal fluid - Milk of magnesia
Which of the following could be a buffer?
Which of the following pairs of substances could function as a buffer solution? a) NaCl + HF b) HF + NaF c) HF + H2O d) NaF e) NaF + H2O
Which of the three substances has the greatest porosity?
Which of the following three substances exhibits the greatest porosity? a. Gravel b. Sand c. Silt d. All are equal