02-03-2016
Chemistry

contestada

What are the three signs that a chemical change has taken place

Respuesta :

Аноним Аноним

02-03-2016

1)color change 2) temperater change 3) the formation of gas bubbles

Answer Link

Otras preguntas

Please Help! Don't remember going over this! What activates a convection current, starting the flow of a fluid? A. cold temperatures at the north pole B. heated

Karin wants to use the distributive property to find the value of 19 • 42 + 19 • 58 mentally. Which expression can she use? a. 19 x(42 + 58) b. 19 x(42 x 58)

Domestically, President Nixon was most concerned with increasing civil rights strengthening federal power restoring law and order aiding military power

what is the log(45)/log(15) simplified?

The nucleus of an atom of K-42 contains (1) 19 protons and 23 neutrons (2) 19 protons and 42 neutrons (3) 20 protons and 19 neutrons (4) 23 protons and 19 neutr

Given the balanced equation representing a reaction:2H2 + O2 ==> 2H2O What is the mass of H2O produced when 10.0 grams of H2 react completely with 80.0 grams

why is namibia one of the most sparsely populated countries in africa?

Which approach best defines how writers of historical fiction try to appeal to readers?

What can be found in the north European plain?

what three requirements must be met in order to run for president in the U.S.