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almond37 [142]
4 years ago
13

When potassium iodide liquid is poured into lead nitrate solution (both clear solutions), a bright yellow solid, lead iodide, fo

rms in a potassium nitrate solution. What are the signs that this is a chemical reaction? Check all that apply.
Heat is produced.
Light is produced.
Heat is absorbed.
Bubbles appear.
A precipitate forms.
The color changes.
Chemistry
2 answers:
anyanavicka [17]4 years ago
6 0

Answer:

A precipitate forms; the colour changes.

Step-by-step explanation:

The formation of a precipitate a colour change are always signs that a chemical reaction has occurred.

A, B, C, and D are <em>wrong.</em> They are signs of a reaction, but you did not observe them here.

Luda [366]4 years ago
4 0

E and F are correct!

E - A precipitate forms.

F - The color changes.

Hope I could help a little with your homework :)

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ziro4ka [17]

Answer:

Molecule

Explanation:

molecule of the substance.  You can break the molecule down further, into the atoms that make it up, but those don't have the properties of the original  'compound'.

Here's an example:

-- Sodium is a soft, slippery metal, that explodes when water touches it.

-- Chlorine is a poisonous green gas.

When an atom of Sodium and an atom of Chlorine combine, they make one molecule of a substance called "Sodium Chloride".  That's SALT !  It isn't green, it isn't a gas, it isn't poisonous, it isn't soft and slippery, and it doesn't explode when water touches it.

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A teaspoon of caffeine is <em>NOT</em> deadly as teaspoon of ricin                                                                                                            

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3 years ago
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Illusion [34]
All of these are compounds except oxygen because a compound is two or more different elements bonded together.
4 0
3 years ago
Why were the Spanish interested in conquering Peru?
mr_godi [17]

Answer:

531–1532 – Pizarro's third voyage to Peru. Spaniards form a bond with the Natives (Huancas, Chankas, Cañaris and Chachapoyas) who were under the oppression of the Inca Empire, and Pizarro includes them among his troops to face the Incas. Atahualpa is captured by Spanish.

Explanation:  Is this right ?

if it is please give thanks

6 0
3 years ago
2/10
emmainna [20.7K]

Answer:

pH=2.34

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3 years ago
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