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kompoz [17]
3 years ago
12

Which stimulus causes a porcupine to extend its quills?

Chemistry
1 answer:
Andru [333]3 years ago
3 0
The answer is threatening behavior by predators. Reason is that it is used as a self defense strategy.
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Maru [420]

Aluminum sulfide : Al₂S₃

ratio cation : anion = 2 : 3

<h3>Further explanation</h3>

Given

Compound of Aluminium

Required

cations anions ratio

Solution

Salt can be formed from cations and anions which have their respective charges.

In the chemical compound formula these charges are crossed with each other

For aluminum it has a +3 charge

1. Aluminum carbide : Al₄C₃

ratio cation : anion = 4 : 3

2. Aluminum chloride : AlCl₃

ratio cation : anion = 1 : 3

3. Aluminum sulfide : Al₂S₃

ratio cation : anion = 2 : 3

4. Aluminum nitride : AlN

ratio cation : anion = 1 : 1

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2 years ago
Which type of bond is formed by two atoms that equally share one pair of electrons? (1 point) ionic covalent metallic un?
GenaCL600 [577]
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3 years ago
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When you dissolve an antacid tablet in water and it produces bubbles, what kind of change is this?
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Answer: B. a chemical change

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Z was smaller than X

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