reynbabies2 reynbabies2

03-11-2021
Chemistry

contestada

How can you identify gas in a chemical reaction without observing the atoms or molecules?

Respuesta :

sarahjeylani90 sarahjeylani90

03-11-2021

Answer:

There are five signs of a chemical change:

Colour Change.

Production of an odour.

Change of Temperature.

Evolution of a gas (formation of bubbles)

Precipitate (formation of a solid).

Answer Link

Otras preguntas

What group of people was taken to America and sold as slaves?

What major event happened on September 11, 2001, in the United States?

A sample of a substance has these characteristics: • melting point or 9811 K • hard. brittle solid at room temperature • poor conductor of heat and electricity

Which change results in the formation of different substances? (1) burning of propane (2) melting of NaCl (s) (3) deposition of CO2(g) (4) solidification of wat

Name one of the two longest rivers in the United States.

What is the “rule of law”?

What is a hyperbole?

What group of people was taken to America and sold as slaves?

What is the name of the President of the United States now?

help on questions 11 and 15 Add and simplify if possible