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weqwewe [10]
3 years ago
13

an __ is pure substance that cant be broken down into simpler substance by chemical or physical means

Chemistry
2 answers:
melisa1 [442]3 years ago
5 0
<span>An ELEMENT is pure substance that cant be broken down into simpler substance by chemical or physical means</span>
GaryK [48]3 years ago
3 0
<span>An element is pure substance that cant be broken down into simpler substance by chemical or physical means</span>
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Tris(hydroxymethyl)aminomethane, known as TRIS or THAM, is a water-soluble base used in synthesizing surfactants and pharmaceuti
valentina_108 [34]

Tris (as a pure compound normally supplied) is a base and its aqueous solutions are alcaline. It is not a buffer sensu stricto. To accumulate a buffering ability it sould be in equilibrium with the corresponding acid which is the protonated structure of Tris.

<h3>Is Tris damaging to humans?</h3>

The following acute (short-term) fitness consequences can also occur straight away or rapidly after publicity to Tris (2,3- Dibromopropyl) Phosphate: * Contact can irritate the pores and skin and eyes. * Tris (2,3-Dibromopropyl) Phosphate is a PROBABLE CARCINOGEN in humans.

<h3>Is Tris base toxic?</h3>

tris(hydroxymethyl)aminomethane

Potential Adverse human fitness effects and signs : Practically non-toxic. Non-toxic if swallowed (LD50 oral, rat > 5000 mg/kg). Non-toxic in contact with skin (LD50 skin> 5000 mg/kg). Not irritant to skin.

Learn more about TRIS here:

<h3>brainly.com/question/27390164</h3><h3 /><h3>#SPJ4</h3>
6 0
2 years ago
Why do marshmallows puff up when microwaved more than any other food?
Kryger [21]
Marshmallows contain mostly  water and sugar. When microwaved, the water heats up, so do the air bubbles in the marshmallow, and they thus take more space. Since sugar tends to soften when heated up, the marshmallow's structure will puff up as the air bubbles expand.
5 0
3 years ago
Read 2 more answers
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