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 are the advantages of a sole proprietorship?

the sum of 1/9 2/3 and 5/8 is

how many lines of symmetry does a rhombus that is not a square have?

Marissa rode her bike to the park and back home. She lives 2 3/10 miles from the park. How many miles did Marissa ride her bike in all?

Why do you think the line between the powers of the Federal Government and those of state governments was often not clearly drawn?

Which principle asserts that citizens, not politicians or government officials, hold ultimate authority?

Which conflict does Brutus face in the play? A. Brutus has an internal conflict as he tries to decide on the best way to assassinate Caesar. B. Brutus has an

adding heat to liquid water is likely to cause

Given the equation:2C2H2 (g) + 5O2 (g) → 4 CO2 (g) + 2H2O(g)How many moles of oxygen are required to react completely with 1.0mole of C2 H2 ?(1) 2.5 (3) 5.0(2)

The volume of a cube is 1000cm3. Find: A) the length of one edge B) the total surface area in cm2