3 years ago

The modern periodic table can be divided into and ____.

Chemistry

1 answer:

saveliy_v [14]3 years ago

6 0

The modern periodic table can be divided into periods and groups.

You might be interested in

Which particle often described as having very little or no mass since the mass number does not change when you add more and more

astra-53 [7]

Answer:

I wrote this answer to get points lol

Explanation:

7 0

3 years ago

In a heating curve, when is the temperature constant? need answers!

Varvara68 [4.7K]

During a phase change

3 0

3 years ago

Read 2 more answers

An experiment shows that a 250 −mL gas sample has a mass of 0.436 g at a pressure of 742 mmHg and a temperature of 27 ∘C.

icang [17]

Answer:

41.9 g/ mol hope that helps you out

Explanation:

d=p.m/ r.t

8 0

3 years ago

Which statement best describes what a scientist is

Alik [6]

the answer is the nature of science

4 0

3 years ago

What is the minimum of acetic anhydride (102.1 g/mol) required to react completely with the 2.94 grams of salicylic acid? What v

Lady bird [3.3K]

Answer:

a) the minimun of acetic anhydride required for the reaction is 2.175 g (CH3CO)2O

b) V acetic anhydride = 2.010 mL

Explanation:

balanced reaction:

C6H4OHCOOH + (CH3CO)2O ↔ C9H8O4 + C2H4O2

⇒ mol salicylic acid = 2.94 g C6H4OHCOOH * ( mol C6H4OHCOOH / 138.121 g ) = 0.0213 mol C6H4OHCOOH

⇒ mol acetic anhydride = 0.0213 mol C6H4OHCOOH * ( mol (CH3CO)2O / mol C6H4OHCOOH ) = 0.0213 mol (CHECO)2O

⇒ g acetic anhydride = 0.0213 mol * ( 102.1 g/mol ) = 2.175 g CH3CO)2O

b) V = 2.175 g (CH3CO)2 * ( mL / 1.082 g ) = 2.010 mL (CH3CO)2O

4 0

3 years ago

The modern periodic table can be divided into ____________and ________________.

The modern periodic table can be divided into and ____.