what are the nouns in this sentence?

There was a sharp, explosive crackle that startled him.

Crackle.

and "him", unless you're not including pronouns as nouns...

hope that helps! :)

What's the noun in this sentence?

As he turned to go, he spat speculatively.

To identify the nouns in a sentence, you need to look for words that represent people, places, things, or ideas. In the given sentence, the nouns are as follows:

1. crackle: It represents a thing, specifically a sound.
2. sharp: It represents a thing, specifically a quality of the sound.
3. explosive: It represents a thing, specifically a quality of the sound.
4. him: It represents a person, specifically the one who was startled.
5. There: It represents a place or a general location.

So, the nouns in the sentence are "crackle," "sharp," "explosive," "him," and "There."