How do I calculate the standard enthalpy change for the following reaction at 25 °C?

MgCl2 (s) + H2O (l) - - > MgO (s) + 2HCl (g)

What is the name of the process where two nuclei join to create a new element

Carbon dioxide is a ... A. Mixture & Homogenous B. Pure Substance & Compound C. Pure Substance & Element D. Mixture & Heterogenous

Helium (He), neon (Ne) and argon (Ar) are all colorless, odorless gases with low chemical reactivity. Based on the periodic table, which of the following is correct? A. Chlorine (Cl) is a colorless, odorless gas with low chemical reactivity. B.

How earth can be considered a system

What is a benefit of fuel cell cars over standard cars? Fuel consumption is reduced by 30-90 percent. Hydrogen-powered cell vehicles are cheaper. Hydrogen fuel is very safe and economical to store.

You are measuring the mass of various shapes objecys and identifying their shaped ypu then record the qualitative and quanatitave data in a table is qualitataive wnd which is quatitaive

A positively charged wire is attracted to a negatively charged piece of metal. What force causes this?

Two identical atoms from Area B bond together. What type of bond will they most likely form A. Electrostatic B. Metallic C. Ionic D. Covalent

Which would be the best way to represent the concentration of a 1.75 M K2CrO4 solution? 1.75% K2CrO4 [K2CrO4] (K2CrO4) K2CrO4, [M] = 1.75

Consider the reaction C12H22O11 (s) + 12O2 (g) →12CO2 (g) + 11H2O (l) in which 10.0 g of sucrose, C12H22O11, was burned in a bomb calorimeter with a heat capacity of 7.50 kJ/∘C. The temperature increase inside the calorimeter was found to be 22.0 ∘C.