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stepan [7]
3 years ago
15

True or false the strength and concentration of an acid or base describe the same property.

Chemistry
2 answers:
Jlenok [28]3 years ago
5 0
..........
True
..........
WITCHER [35]3 years ago
3 0
I’m pretty sure that it’s true.
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Neutrons of an Adam have ____ charges and are located ____ the nucleus.
lyudmila [28]
B) they have no charges and are inside an atom.*
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What is the pressure in millimeters of mercury of 0.0130 molmol of helium gas with a volume of 210. mLmL at 55 ∘C∘C? (Hint: You
juin [17]

Answer : The pressure of the helium gas is, 1269.2 mmHg

Explanation :

To calculate the pressure of the gas we are using ideal gas equation:

PV=nRT

where,

P = Pressure of He gas = ?

V = Volume of He gas = 210. mL = 0.210 L    (1 L = 1000 mL)

n = number of moles He = 0.0130 mole

R = Gas constant = 0.0821L.atm/mol.K

T = Temperature of He gas = 55^oC=273+55=328K

Putting values in above equation, we get:

P\times 0.210L=0.0130mole\times (0.0821L.atm/mol.K)\times 328K

P=1.67atm=1269.2mmHg

Conversion used : (1 atm = 760 mmHg)

Thus, the pressure of the helium gas is, 1269.2 mmHg

4 0
3 years ago
Why are alloys generally used to make everyday objects
dezoksy [38]
Chem bonds by exchanged charges create new characteristics as a result
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3 years ago
Q 9 The table lists the steps to clean water for drinking purpose. 1. Adding chlorine tablets to the water.2. Pouring the water
love history [14]

Answer:

1 and 2

Explanation:

when we r adding chlorine to water

the water is clean

8 0
3 years ago
I wrote that all matter consists of tiny particles called atoms. I also thought all atoms of a specific
Westkost [7]

Answer:

John Dalton

Explanation:

John Dalton in 1808 suggested that all matter consists of tiny particles called atoms and that the atoms of a specific element are identical.

He postulated the Dalton's atomic theory which has the following important parts;

  • All matters consists of indivisible particles called atoms
  • Atoms of the same element are similar and are different from atoms of other elements.
  • Atoms can neither be created nor destroyed.
  • Atoms combine in simple whole ratios to form compounds.
7 0
3 years ago
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