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AleksandrR [38]
3 years ago
14

The elements on the periodic table that are light blue are:

Chemistry
1 answer:
AlekseyPX3 years ago
8 0

Answer: I think it is noble gasses.

Explanation: Use the website Dynamic Periodic Table for stuff like that it helps.

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1) Write the symbol and charge for each individual ion
ololo11 [35]

N -3

Ba +2

Sr +2

F -1

I -1

Ca +2

Mg +2

S -2

S -2

Al +3

//

Ba3N2

SrF2

CaI2

MgS

Al2S3

//

I don't really understand 2.

3 0
2 years ago
Radioactive americium-241 is used in household smoke detectors and in bone mineral analysis.
Varvara68 [4.7K]

Answer:

Electrons- 95

Protons- 95

Neutrons-146

Explanation:

An atoms is made up of three fundamental particles; electrons, protons and neutrons,

Americium belongs to the f block in the periodic table. It is an actinide element.

An atom of Am-241 contains 95 protons, 95 electrons and 146 neutrons.

4 0
3 years ago
A student titrates 10.00 milliliters of hydrochloric acid of unknown molarity with 1.000 m naoh. it takes 21.17 milliliters of b
Dima020 [189]
Mole ratio for the reaction is 1:1
no of moles in NaOH that reacted= 1*21.17/1000=0.02117mols
 molarity of HCl=0.02117*10/1000
                         =2.117M
4 0
3 years ago
Write a chemical equation for the following reaction. (Type your answer using format CH4 for CH4.) In water, iron(III) chloride
taurus [48]

Answer:

FeCl3(aq) -

3NaOH(aq) 0 Fe(OH)3(s) -

3NaCl(aq)

Explanation:

FeCl3(aq) -

3NaOH(aq) 0 Fe(OH)3(s) -

3NaCl(aq)

7 0
2 years ago
Volume can you measured in liters or cubic meters
evablogger [386]
Volume can be measures in liters
5 0
3 years ago
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