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Ulleksa [173]
3 years ago
9

Please do question 20 (help)

Chemistry
1 answer:
ValentinkaMS [17]3 years ago
7 0

the rhino is A and the horse is B because if you see A and the rhino they're big. its logical

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Why do samples of platinum and copper have the same extensive properties?
lora16 [44]
They have the same extensive properties because the sample contains the same amount of matter. They do not have the same intensive properties because they do not have the same composition or type of matter.
5 0
3 years ago
2. A block of material has a volume of 2 m3. It has a mass of 1 × 104 kg. Calculate the density of the material sample and expre
maks197457 [2]
Density = mass / volume

D = 1 x 10⁴ / 2

D = 5000 kg/m³ in g/cm³:

1 kg/m³ ---------------- 0.001 g/cm³
5000 kg/m³ ----------- ??

5000 x 0.001 / 1 =>  5.0 g/cm³

hope this helps!
7 0
3 years ago
What is the chemical formula for zinc phosphate
igor_vitrenko [27]
<span>Zn3(PO4)2

hereugo!!!!!!!!!!</span>
8 0
3 years ago
Read 2 more answers
What do you mean by chemical reaction ?​
kherson [118]

A chemical reaction is a reaction that changes the molecular structure and is normally irreversible.

6 0
3 years ago
Give the name of the products formed
attashe74 [19]

Answer:

With Br2 - Bromobenzene

With Cl2 - Chlorobenzene

With HNO3- Nitrobenzene

With H2SO4 - Benzenesulphonic acid

With HCOCl - Benzoyl chloride

With 1-chloro-2,2-dimethylpropane - 2,2dimethyl-1-phenyl propane

Explanation:

The common thread joining all these reactions is that they are all electrophillic reactions. They are so called because the attacking agents in each reagent is an electrophile. Electrophiles are species that have electron deficient centers and are known to attack molecules that are high in electron density at regions of high electron density.

The benzene molecule has rich electron density. Any substituents that donates electrons to the ring improves the likelihood that benzene will undergo electrophillic substitution reactions while electron withdrawing substituents decrease the likelihood that benzene will undergo electrophillic substitution reactions.

The names of the compounds formed when benzene undergoes electrophillic reaction with the attacking agents listed in the question are displayed in the answer section.

7 0
3 years ago
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