Chemistry

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A radiation detector exposed to sunlight records the energy falling on a given area per unit time. ... Started by Deast7027	1 Replies 81 Views	Jul 8, 2021 by choc0chan
[Kr]5s24d105p5 is the ground state electronic configuration of ________. Started by magmichele12	1 Replies 144 Views	Jul 8, 2021 by yasmina
The standard enthalpy for diamond and graphite are the same value. Started by krzymel	1 Replies 70 Views	Jul 8, 2021 by asware1
The enthalpy of a system is the internal energy minus the pressure-volume product. Started by 09madisonrousseau09	1 Replies 61 Views	Jul 8, 2021 by essyface1
Heat is usually transferred from a cold object to a hot object. Started by dejastew	1 Replies 62 Views	Jul 8, 2021 by jlaineee
An expansion of gas by a system means that the system does work. Started by Mollykgkg	1 Replies 68 Views	Jul 8, 2021 by duy1981999
Although CO is not toxic, there is concern that it causes global warming. Started by gbarreiro	1 Replies 58 Views	Jul 8, 2021 by Alyson.hiatt@yahoo.com
A closed system can exchange matter but not energy with the surroundings. Started by biggirl4568	1 Replies 60 Views	Jul 8, 2021 by connor417
Which of the following are thermodynamic state functions? I) heat II) volume III) temperature IV) ... Started by natalie2426	1 Replies 38 Views	Jul 8, 2021 by juiceman1987
When 50.0 mL of 0.400 mol L-1 Ca(NO3)2 is added to 50.0 mL of 0.800 mol L-1 NaF, CaF2 precipitates, ... Started by Kikoku	1 Replies 131 Views	Jul 8, 2021 by xthemafja
When 1.50 mol of CH4(g) reacts with excess Cl2(g) at constant pressure according to the chemical ... Started by karateprodigy	1 Replies 167 Views	Jul 8, 2021 by Sophiapenny
What is the work in joules done on the system to compress He gas from 24.0 L to 12.5 L against a ... Started by fbq8i	1 Replies 37 Views	Jul 8, 2021 by verrinzo
What is the reaction for the standard enthalpy of formation for Mn2O3(s)? (Mn(s) is the stable form ... Started by lilldybug07	1 Replies 104 Views	Jul 8, 2021 by millet
What is the reaction for the standard enthalpy of formation for HCl(g)? Started by TVarnum	1 Replies 76 Views	Jul 8, 2021 by jessicaduplan
What is the reaction for the standard enthalpy of formation for CdSO4(s)? (Cd(s) is the stable form ... Started by genevieve1028	1 Replies 64 Views	Jul 8, 2021 by lorealeza
What is the heat of combustion in kJ/g of benzoic acid (C6H5COOH) if the initial temperature was ... Started by Alainaaa8	1 Replies 129 Views	Jul 8, 2021 by ryansturges
What is the enthalpy of reaction for the neutralization reaction occurring between dilute ... Started by lindiwe	1 Replies 84 Views	Jul 8, 2021 by l.stuut
What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL ... Started by casperchen82	1 Replies 49 Views	Jul 8, 2021 by orangecrush
Using the heat of combustion of methanol as -726.6 kJ/mol and the following data: C(graphite) + 1/2 ... Started by gbarreiro	1 Replies 94 Views	Jul 8, 2021 by yasmina
Two solutions, 50.0 mL of 1.00 M BaCl2(aq) and 50.0 mL of 1.00 M Na2SO4(aq), both initially at 21.5 ... Started by abern	1 Replies 99 Views	Jul 8, 2021 by meryzewe
To have a standard enthalpy of formation referenced to 0 J/mol, the substance must: I) be a simple ... Started by ahriuashd	1 Replies 212 Views	Jul 8, 2021 by pikon
The standard enthalpy of formation of NiSO4(s) at 25 C is -872.9 kJ/mol. The chemical equation to ... Started by Evvie72	1 Replies 221 Views	Jul 8, 2021 by coreycathey
The standard enthalpy of formation for CuSO4 5 H2O(s) is -2278.0 kJ/mol at 25 C. The chemical ... Started by beccaep	1 Replies 152 Views	Jul 8, 2021 by frogdreck123456
The specific heat capacity of solid copper metal is 0.385 J g-1 K-1. How many joules of heat are ... Started by Redwolflake15	1 Replies 172 Views	Jul 8, 2021 by princessflame2016
The specific heat capacity of liquid water is 4.184 J g-1 K-1. How many joules of heat are needed to ... Started by naturalchemist	1 Replies 123 Views	Jul 8, 2021 by bookworm410