Questions tagged 'Chemistry'
452 questions
Nov 28, 2024
how much charge does H2O have?
What is the charge of H2O? Specifically, I would like to know how many more electrons there are compared to protons, or vice versa. Is H2O positively charged, negatively charged, or neutral? Thank you...
Nov 27, 2024
Refer to the activity series chart and determine which of the following displacement reactions can occur. a. 2ag(s) + zn(no3)2(aq)
Refer to the activity series chart and determine which of the following displacement reactions can occur: a. 2 Ag(s) + Zn(NO3)2(aq) → 2 AgNO3(aq) + Zn(s) b. 2 Cu(NO3)2(aq) + 2 Ag(s) → 2 AgNO3(aq) + C...
Nov 27, 2024
Determine [OH] of solution?
I need assistance in determining the hydroxide ion concentration ([OH^-]) of a solution that is 0.120 M in carbonate ions ((CO_3^{2-})). Additionally, I would like to calculate the pH and pOH of this...
What is the molar mass of carbon dioxide?
Could someone please explain how to calculate the molar mass of carbon dioxide? Thank you!
What term describes elements that contain the same number of valence electrons?
What term is used to describe elements that have the same number of valence electrons?
help completing and balancing acid-base reactions?
I need assistance with balancing and completing acid-base reactions, as I'm having trouble understanding the process. If you could please explain how to approach this and help me figure it out, I woul...
Calculate the number of H atoms in 0.190 mole C6H14O.?
How many hydrogen (H) atoms are present in 0.190 moles of C6H14O?
Elements that have complete valence electron shells are mostly found in the blank block on the periodic table..?
Elements that possess complete valence electron shells are primarily located in which block of the periodic table? A. S block B. D block C. P block D. F block
chemistry: What are the concentrations of OH– and H in a 0.00075 M solution of Ba(OH)2 at 25 °C? Assume comple?
What are the concentrations of OH⁻ and H⁺ in a 0.00075 M solution of Ba(OH)₂ at 25 °C? Assume complete dissociation. I have tried to solve this problem twice but haven't been successful. I don't need...
Consider the following reaction 8A(g) + 5B(g) → 8C(g) + 6D(g)…..?
Consider the following reaction: 8A(g) + 5B(g) → 8C(g) + 6D(g). If the concentration of [C] is increasing at a rate of 4.0 mol L⁻¹ s⁻¹, what is the rate of change of [B]?