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Dima020 [189]
3 years ago
5

PLEASE HLEP I WILL GIVE BRAINLIEST

Chemistry
2 answers:
Leno4ka [110]3 years ago
8 0
D will be the answer !!!!!!:))
denis23 [38]3 years ago
5 0
D is the correct answer
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What is the compound KNC called?
rodikova [14]
The answer is <span>Potassium cyanide</span>
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3 years ago
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How are the valence electrons organized to form a bond between the atoms
Elina [12.6K]

Answer: add up to eight

Explanation: NaO as one bond as it takes only one and seven to make eight. Leaving NaO with three lone pairs

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3 years ago
3. Could a molecule<br> contain only one atom?
Blababa [14]
A molecule is defined as two or more atoms of the same element different element that are bound together. A molecule may be homonuclear, which means, it consists of atoms of one chemical element, as with oxygen (O2); or it may be heteronuclear, a chemical compound composed of more than one element, as with water (H2O).
8 0
3 years ago
What mass of oxygen is needed to burn 4g of hydrogen, given the equation below
aleksandrvk [35]

32g of oxygen is required to burn 4g of hydrogen.

Define molecular mass.

A specific molecule's mass is expressed in daltons and is known as the molecular mass (m) (Da or u). Due to the varying isotopes of an element that they contain, multiple molecules of the same substance can have distinct molecular weights.

The total atomic mass of every atom in a molecule, calculated using a scale with hydrogen, carbon, nitrogen, and oxygen having atomic masses of 1, 12, 14, and 16, respectively. For instance, water has a molecular mass of 18 (2 + 16), which consists of two hydrogen atoms and one oxygen atom. known also as molecular weight.

In ,2H2+O2-----> 2H2O

H 2 molecules have a mass of 2 g/mol.

The molecular weight of oxygen is 32 g/mol.

When the chemical equation is balanced,

To totally react, 32 g of oxygen are needed for every 22=4 g of hydrogen.

To know more about molecular mass use link below:

brainly.com/question/21334167

#SPJ1

7 0
1 year ago
What will happen to the final pressure of a cylinder when the volume is doubled.
OLEGan [10]

If temperature were to double the pressure would likewise double. Increased temperature would increase the energy of the molecules and the number of collisions would also increase causing the increase in pressure.

7 0
3 years ago
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