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nexus9112 [7]
3 years ago
15

Physical or chemical ?

Chemistry
1 answer:
Artist 52 [7]3 years ago
7 0

Answer:

P,C,P,C,P,C,P,P,C,P

Explanation:

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unit that contains two or more atoms covalently bonded together but that has an overall charge is called a(n) _____ ion. Many __
OverLord2011 [107]

Answer:

polyatomic, ionic

Explanation:

unit that contains two or more atoms covalently bonded together but that has an overall charge is called a(n) polyatomic ion. Many ionic compounds contain such units.

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2 years ago
What is a chemical change and what is a chemical property? Give Example.
nordsb [41]
Look it up on google
8 0
3 years ago
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What is equal to the number of particles in 36 grams of carbon-12?
HACTEHA [7]

Answer:

3 moles

Explanation:

To solve this problem we will  use the Avogadro numbers.

The number 6.022×10²³ is called Avogadro number and it is the number of atoms, ions or molecules in one mole of substance.  According to this,

1.008 g of hydrogen = 1 mole =  6.022×10²³  atoms.

18 g water = 1 mole = 6.022×10²³ molecules

we are given 36 g of C-12. So,

12 g of C-12 = 1 mole

24 g of C-12 =  2 mole

36 g of C-12 = 3 mole

So 3 moles of C-12 equals to the number of particles in 36 g of C-12.

4 0
3 years ago
Which of these is the ionic compound?
ale4655 [162]

Answer:

RbF

mgo

nh4cl

because electrons are lost by and element forming a cation and gained by the other element forming an anion and held together by electrostatic forces

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2 years ago
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