---
title: Many toilet cleaners are acids, and mixing an acid with bleach gives… — Cleaning chemicals and safety at home · tree and pragmatics
description: Many toilet cleaners are acids, and mixing an acid with bleach gives off chlorine, a poisonous gas; mixing bleach with ammonia cleaners makes other harmful gases. Who acts: Many toilet cleaners, mixing, mixing bleach. A sentence of the lesson «Cleaning chemicals and safety at home» of the chemistry 
---

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# Cleaning chemicals and safety at home, sentence 8

<!-- .ven lang=en -->
Many toilet cleaners are acids, and mixing an acid with bleach gives off chlorine, a poisonous gas; mixing bleach with ammonia cleaners makes other harmful gases.

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**Who acts:** Many toilet cleaners, mixing, mixing bleach · **What happens:** be, mix, give off, make · **To what, where:** acids, acid, chlorine, other harmful gases

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This is a sentence of the lesson «Cleaning chemicals and safety at home» of the chemistry course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Many toilet cleaners, mixing, mixing bleach), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:025-cleaning-chemicals-safety.lesson:8
# text = Many toilet cleaners are acids, and mixing an acid with bleach gives off chlorine, a poisonous gas; mixing bleach with ammonia cleaners makes other harmful gases.
# source = school lesson (ours)
# course = chemistry
# lesson = 025-cleaning-chemicals-safety.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R1-cc-next ×1, R5-strong ×1, R6-punct-agree ×1, R7-rel-agree ×1
1	Many	many	ADJ	JJ	Degree=Pos	3	amod	_	_
2	toilet	toilet	NOUN	NN	Number=Sing	3	compound	_	_
3	cleaners	cleaner	NOUN	NNS	Number=Plur	5	nsubj	_	_
4	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	acids	acid	NOUN	NNS	Number=Plur	0	root	_	_
6	,	,	PUNCT	,	_	5	punct	_	_
7	and	and	CCONJ	CC	_	13	cc	_	Agree=R1-cc-next|Haiku=5:cc
8	mixing	mix	VERB	VBG	Tense=Pres|VerbForm=Part	13	csubj	_	Agree=R7-rel-agree|Haiku=13:nsubj
9	an	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	acid	acid	NOUN	NN	Number=Sing	8	obj	_	_
11	with	with	ADP	IN	_	12	case	_	_
12	bleach	bleach	NOUN	NN	Number=Sing	8	obl	_	Agree=R5-strong|Haiku=10:nmod
13	gives	give	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	_
14	off	off	ADP	RP	_	13	compound:prt	_	_
15	chlorine	chlorine	NOUN	NN	Number=Sing	13	obj	_	_
16	,	,	PUNCT	,	_	19	punct	_	_
17	a	a	DET	DT	Definite=Ind|PronType=Art	19	det	_	_
18	poisonous	poisonous	ADJ	JJ	Degree=Pos	19	amod	_	_
19	gas	gas	NOUN	NN	Number=Sing	15	appos	_	_
20	;	;	PUNCT	,	_	22	punct	_	_
21	mixing	mixing	NOUN	NN	Number=Sing	22	compound	_	_
22	bleach	bleach	NOUN	NN	Number=Sing	26	nsubj	_	_
23	with	with	ADP	IN	_	25	case	_	_
24	ammonia	ammonia	NOUN	NN	Number=Sing	25	compound	_	_
25	cleaners	cleaner	NOUN	NNS	Number=Plur	22	nmod	_	_
26	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	_
27	other	other	ADJ	JJ	Degree=Pos	29	amod	_	_
28	harmful	harmful	ADJ	JJ	Degree=Pos	29	amod	_	_
29	gases	gas	NOUN	NNS	Number=Plur	26	obj	_	_
30	.	.	PUNCT	.	_	5	punct	_	Agree=R6-punct-agree|Haiku=26:punct
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | Many toilet cleaners | acids |  |  |  |  | tree rules |
| 2 | **mix** | gerund |  | a acid |  |  |  | with bleach | vn mix-22.1-1-1 «NP V NP PP.co-patient»: agent=Agent acid=Patient with bleach=Co-Patient |
| 3 | **give off** | present | mixing | chlorine |  |  |  |  | vn substance\_emission-43.4 «NP V NP»: agent=Source chlorine=Theme |
| 4 | **make** | present | mixing bleach with ammonia cleaners | other harmful gases |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset gas=Product |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:chemistry:025-cleaning-chemicals-safety.lesson:8`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R1-cc-next ×1, R5-strong ×1, R6-punct-agree ×1, R7-rel-agree ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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- ← previous: [Cleaning chemicals and safety at home, 7](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/25-cleaning-chemicals-safety/7/)
- next →: [Cleaning chemicals and safety at home, 9](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/25-cleaning-chemicals-safety/9/)
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