Chemistry, 13.11.2020 06:30 cailynrachael
How much heat energy must be added to increase the temperature of 9.4 grams of water if the water's
temperature is raised from 22°C to 84°C?
(The specific heat capacity of Liquid Water is 4.18 )
gºc
Equation: Q=m. CAT
Answers: 3
Chemistry, 22.06.2019 02:40, hardwick744
Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.
Answers: 2
Chemistry, 22.06.2019 04:00, speris1443
Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)
Answers: 1
Chemistry, 22.06.2019 11:40, Wemaybewrong
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
How much heat energy must be added to increase the temperature of 9.4 grams of water if the water's...
Social Studies, 10.07.2019 02:00
Mathematics, 10.07.2019 02:00
Mathematics, 10.07.2019 02:00
English, 10.07.2019 02:00
Social Studies, 10.07.2019 02:00