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grigory [225]
3 years ago
5

Who made the first periodic table of the elements?

Chemistry
2 answers:
netineya [11]3 years ago
6 0

The periodic table was invented by Russian chemist Dmitri Mendeleev in 1869.

LiRa [457]3 years ago
3 0

Answer:

B. Dmitri Mendeleev

Explanation:

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Write the formulas for the following compounds: (a) copper(l) cyanide, (b) strontium chlorite, (c) perbromic acid,(d) hydroiodic
Romashka [77]

Answer:

A. CuCN

B. Sr(OCl)2

C. HBrO4

D. HI

E. Na2NH4PO4

F. KH2PO4

G. IF7

H. P4S10

I. HgO

J. Hg2I2

K. SeF6

Explanation:

All have different valent cation and anions like mono di and poly valent ions

4 0
4 years ago
How many grams are in 2.2 moles of sodium hydroxide (NaOH)?
expeople1 [14]

Answer:

1 mole is equal to 1 moles NaOH, or 39.99711 grams.

(( hoped this helped ))

6 0
3 years ago
Read 2 more answers
P4O10 + H2O —&gt; <br> what are the products
liubo4ka [24]

Answer:

P4O10 + H2O → H3PO4

Explanation:

3 0
1 year ago
The reaction of 2-methylcyclohexanone with CH3MgBr followed by neutralization gives two alcohols. These two alcohols are
Lilit [14]

The reaction of 2-methylcyclohexanone with CH3MgBr followed by neutralization gives two alcohols. These two alcohols are cyclohexanol and ethanol. This reaction involves Grignard reaction.

<h3>What is Grignard reaction?</h3>
  • Alkyl, allyl, vinyl, or aryl-magnesium halides (the Grignard reagent) are added to a carbonyl group in an aldehyde or ketone to produce the Grignard reaction. The creation of carbon-carbon bonds depends on this process.
  • An organic halide reacts with magnesium, but it does not undergo a Grignard reaction; instead, it produces a Grignard reagent.
  • The carbon bonded to magnesium acts as a nucleophile and targets the electrophilic carbon atom that is present within the polar bond of a carbonyl group because carbon is more electronegative than magnesium.
  • Usually, the Grignard reagent is added to the carbonyl through a six-membered ring transition state.

To learn more about Grignard reagent with the given link

brainly.com/question/17135014

#SPJ4

7 0
1 year ago
Copper has an atomic number of 29 that means there are 29 protons in the nucleus of each copper atom that's what the atomic numb
Aliun [14]
29 electrons assuming no other charges
6 0
3 years ago
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