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3 years ago

PLEASE HELP!! 50 POINTS!!! WILL MARK BRAINLEST!!!!

Chemistry

2 answers:

Volgvan3 years ago

4 0

Answer:

Baking soda mixed with Vinegar

Explanation:

This is a chemical reaction that I have seen in my daily life. Vinegar is acidic while baking soda is a base. The 2 mix together to form carbonic acid and sodium acetate from sodium and bicarbonate ions.

Slav-nsk [51]3 years ago

3 0

It occurred to me not too long ago that I have multiple chemical reactions happen every day when I eat. The chemicals in my saliva break down the food I am eating. The pH in saliva is higher, so it breaks down the carbohydrates in the food I'm eating preparing it to go into my stomach and digest. There are also many reactions that must occur during digestion, such as the stomach acid breaking down the food further.

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The distance from the sun to the earth would be which phrase best completes the sentence

Neporo4naja [7]

Answer:

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3 years ago

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lesantik [10]

Order.
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Write the mole ratios of (2ca+o2➡2cao)

tresset_1 [31]

N(Ca)/2 = n(O)/1 = n(CaO)/2

The calcium and the Calcium Oxide are divided by 2 because of their coefficients
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Radium decays to form radon. Which equation correctly describes this decay? Superscript 226 Subscript 88 Baseline Upper R a righ

KiRa [710]

Answer: 226 Subscript 88 Baseline Upper R a right arrow Superscript 222 Subscript 86 Baseline Upper R n + Superscript 4 Subscript 2 Baseline Upper H e

Explanation:

Alpha decay : When a larger nuclei decays into smaller nuclei by releasing alpha particle. In this process, the mass number and atomic number is reduced by 4 and 2 units respectively.

The general representation of alpha decay reaction is:

$^{A}_{Z}\textrm{X}\rightarrow ^{A-4}_{Z-2}\textrm {Rn}+ ^{4}_{2}\textrm{He}$

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$^{226}_{88}\textrm{Ra}\rightarrow ^{222}_{86}\textrm {Rn}+ ^{4}_{2}\textrm{He}$

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kirza4 [7]

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