12/11/17

#### A Zn wire and Ag/AgCl reference electrode (E° = 0.197 V) are placed into a solution of ZnSO4.

A Zn wire and Ag/AgCl reference electrode (E° = 0.197 V) are placed into a solution of ZnSO4. The Zn wire is attached to the positive terminal and the Ag/AgCl electrode is attached to the negative... more

09/28/17

#### Kayla moved a full shopping bag using the force of 25 Newtons over a distance of 10 meters. How much energy did Kayla use to move the bag

Kayla moved something 25 Newtons over a distance of 10 meters how much energy did she use.   IDK what she did I need help

05/17/17

#### need help working out a chemistry problem

What is the new mass/volume (m/v)% of a KOH solution that is prepared by diluting 110 mL of a 6% (m/v) KOH solution to 330 mL?   A) 2% B) 1% C) 6% D) 12% E) 18%

05/17/17

#### need help working out this problem

What is the mass of neon that exerts a pressure of 720. mmHg,with a temperature of -15.0 °C , when the volume of the container is 760. mL?   A) 0.0340 g B) 0.686 g C) 0.615 g D) 517 g E) 25.8 g

04/05/17

#### Solve for the correct number of moles (Show Work Please)

Equation: 2AgNO3 + ZnCl2 = Zn(NO3)2 + AgCl   Given: .50 mol AgNO3 react

04/05/17

04/05/17

#### Name the organic families present in the antibiotic amoxicillin. (Select all that apply.)

Amine Sulfide Carboxylic Acid Amide Ether Ester Ketone Aldehyde Disulfide Phenol

04/05/17

#### Which pairs of molecules can form a hydrogen bond with one another? (Select all that apply.)

A.)CH3CH2SH and CH3CH2SH B.)CH3OCH3 and CH3OCH3 C.)CH3OH and CH3OH D.)CH2=CHCH3 and CH2=CHCH3

03/28/17

#### solubility rules

use solubility rules to predict whether or not a precipitation reaction will occur when the following aqueous solutions are mixed. write the molecular and the net ionic equation for each reaction... more

03/22/17

#### If 13.3 g of CaCl2 are present in 150 mL of aqueous solution, what is the concentration in terms of the following?

a. molarity b. weight/volume percent c. parts per thousand d. parts per million e. parts per billion

03/15/17