reilers reilers

18-09-2020
Chemistry

contestada

What are 3 signs that a chemical reaction is happening, what tells you that this is definitely a chemical reaction?

Respuesta :

kihannaswain kihannaswain

22-09-2020

Answer:

A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change

Answer Link

ACCESS MORE

Otras preguntas

SELECT ALL THAT APPLY at STP conditions, 0.25 moles of CO2(g), H2(g), NH3(g) 1. Will contain the same number of molecules 2. Will contain the same number of at

Which word describes Old Kaspar's attitude, in "The Battle of Blenheim," about the human skull his grandchildren find? A. unemotional B. compassionate C. puzzle

Why mans cannot do few things in one moment?

Which type of emission has the highest penetrating power? (1) alpha (3) positron (2) beta (4) gamma

In an experiment, 2.54 grams of copper completely reacts with sulfur, producing 3.18 grams of copper(I) sulfide. Determine the total mass of sulfur consumed. W

Which two compounds have the same molecular formula but different chemical and physical properties? (1) CH3CH2Cl and CH3CH2Br (2) CH3CHCH2 and CH3CH2CH3 (3) CH3

Which phrase describes an atom? (1) a positively charged electron cloud surrounding a positively charged nucleus (2) a positively charged electron cloud surroun

When 50. milliliters of an HNO3 solution is exactly neutralized by 150 milliliters of a 0.50 M solution of KOH, what is the concentration of HNO3? (1) 1.0 M (3)

Which physical changes are endothermic? (1) melting and freezing (2) melting and evaporating (3) condensation and sublimation (4) condensation and deposition

which is greater a 2.75 gallon container or juice or 12 liter container of juice