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Back in 1950s, it was common to have as house cleaning items bleaching solution (containing sodium hypochlorite) and ammonia (used to remove, for example, hair dye stains). However, many people ended up in hospital after using them both, why?

Hypochlorite reacts with ammonia to yield chloramine and water. (emphasise to the students that hypochlorite is an oxidising agent, getting reduced to chloride ions). chloramine is a very toxic gas, since...

RB
Answered by Radu B. Chemistry tutor
3300 Views

Describe and evaluate the working memory model of memory (16 marks)

Baddeley and Hitch (1979) introduced their working memory model to challenge the multi store model of memory proposed by Atkinson and Shiffrin.

The working memory model is...

RL
Answered by Rosie L. Psychology tutor
98522 Views

How do I know whether to use the prepositional case or the accusative case after 'В'

The key difference between choosing whether to use the prepositional case or the accusative case after 'В' is whether there is movement involved. The preposition 'В' is ...

JT
Answered by Jonathan T. Russian tutor
1387 Views

How should I know when to invert the verb and subject in a sentence?

The technical rule used for inversion in German is that the verb always comes in the second position (as the second word in a sentence). For example, in the sentence 'Ich sehe das Haus' (...

JT
Answered by Jonathan T. German tutor
5917 Views

Discuss the Role of Sally Seton in Virginia Woolf's 'Mrs. Dalloway'.

Sally Seton offers Clarissa the promise of emancipation from gender normativity and the roles that accompany it. Sally rejects certain “feminine” roles and adopts some that are “masculine”, ultimately hig...

SS
18675 Views

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