Jakethedog210
07.07.2019 •
Chemistry
Picking up a hot coal is an example of what type of heat transfer? conduction convection radiation transmission
Solved
Show answers
More tips
- H Health and Medicine Why do our Joints Crack?...
- H Health and Medicine What Makes a Man a Man?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
- C Computers and Internet How to Choose a Monitor?...
Answers on questions: Chemistry
- C Chemistry When water or melted ice soaks into the cracks of rocks and freezes, thus causing stress in the rocks due to expansion, causing the rock to break. this is called what...
- C Chemistry Metals are malleable because of weak bonds between atoms. this allows planes of atoms to slide past one another and into new positions. some alloys retain their malleability...
- C Chemistry Given these reactions, where x represents a generic metal or metalloid 1 ) h 2 ( g ) + 1 2 o 2 ( g ) ⟶ h 2 o ( g ) δ h 1 = − 241.8 kj 2 ) x ( s ) + 2 cl 2 ( g ) ⟶ xcl 4...
- C Chemistry How many minutes are there in a solar year (365.24 days)?...
- C Chemistry Three students (a, b, and c) are asked to determine the volume of a sample of ethanol. each student measures the volume three times with a graduated cylinder. the results...
- C Chemistry Carry out the following conversions: (a) 22.6 m to decimeters, (b) 25.4 mg to kilograms, (c) 556 ml to liters, (d) 10.6 kg/m^3 to g/cm^3....
- C Chemistry Three apprentice tailors (x, y, and z) are assigned the task of measuring the seam of a pair of trousers. each one makes three measurements. the results in inches are x...
- C Chemistry The average speed of helium at 25â°c is 1255 m/s. convert this speed to miles per hour (mph)....
- C Chemistry If 7.84 x 10^7 j of energy is released from a fusion reaction, what amount of mass in kilograms would be lost? recall that c = 3 x 10^8 m/s. 7.06 x 10^24 8.71 x 10^-4 8.71...
- H History Gavin newsom is elected as governor of california. what is this an example of...
Ответ:
conduction: Conduction is how heat transfers through direct contact with objects that are touching.
Ответ:
B + H2O <—> HB + OH-
The KB expression is [HB][OH-]/[B]. Since pH is 10.5, pOH is 3.5, and [OH-] = 10^-3.5. [HB] = [OH-] = 10^-3.5, [B] = 0.150 - [HB] = 0.150 - 10^-3.5.
Plugging in:
KB = [HB][OH-]/[B] = 10^-3.5 * 10^-3.5 / (0.150 - 10^-3.5) = 6.68 x10^-7