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nignag [31]
3 years ago
11

How does the number of molecules in one mole of carbon dioxide compare with the number of molecules in one mole of water?

Chemistry
1 answer:
tresset_1 [31]3 years ago
7 0

Answer:

d

Explanation:

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12. Which element is a metalloid?<br> 1) AI<br> 2) Ar<br> 3) As<br> 4) Au
Nina [5.8K]
I believe it is element As, for arsenic.
4 0
3 years ago
How many atoms of oxygen are present in 7.51 grams of<br> glycine with formula C₂H5O2N?
Blizzard [7]

1.205 × 10²³ atoms of oxygen will be present in 7.51 grams of glycine with formula C₂H5O2N. Details about number of atoms can be found below.

How to calculate number of atoms?

The number of atoms of a substance can be calculated by multiplying the number of moles of the substance by Avogadro's number.

However, the number of moles of oxygen in glycine can be calculated using the following expression:

Molar mass of C₂H5O2N = 75.07g/mol

Mass of oxygen in glycine = 32g/mol

Hence; 32/75.07 × 7.51 = 3.2grams of oxygen in glycine

Moles of oxygen = 3.2g ÷ 16g/mol = 0.2moles

Number of atoms of oxygen = 0.2 × 6.02 × 10²³ = 1.205 × 10²³ atoms

Therefore, 1.205 × 10²³ atoms of oxygen will be present in 7.51 grams of glycine with formula C₂H5O2N.

Learn more about number of atoms at: brainly.com/question/8834373

#SPJ1

3 0
2 years ago
If atoms of a halogen nonmetal gain one electron, the atoms then have how many valence electrons?
rodikova [14]
Don't all halogens have 8 valence electrons? They don't need to gain or lose any because they are already stable.
7 0
3 years ago
Arrhenius acids are 1. substances that produce hydrogen atoms in solution. 2. substances that produce hydronium ions in aqueous
ElenaW [278]

Answer:

<h2>1 ) substances that produce hydrogen atoms in solution.</h2>

Explanation:

A swedist scientist Savante Arhenius give the theory of behaviour of Acid-bases. According to Arhenius ,Arhenius Acid compound produce hydrogen ion or proton upon adding in aqueous solution . Acid are molecular compound that have higly polar covalently bonded  ionizable hydrogen atom. HCL is a polar covalently bonded and gas at room temperature and noormal pressure . Upon addition of HCL in water cause ionization ,water breaks into chloride ion and hydrogen ion , in this reaction chlorine gain bond pair electron , while hydrogen ion or proton attached with water . chlorine gain bond pair electron due higher electronegativity than hydrogen and hydrogen loose their electron due to less electronegativity and become hydrogen ion ,these hydrogen ion attached with water to form hydronium ion H_{3}O^{+}(aq) . Hydronium ion is polyatomic ion .

  • Ionization of HCL in water  

         HCL(gas)\rightarrow H^{+}(aq) + CL^{-}(aq)

  •  formation of polyatomic hydronium ion after HCL ionization in water ,where hydrogen ion attached to water and form polyatomic ion.

                 HCL(gas) + H_{2}O(liq)\rightarrow  H_{3}O^{+}(aq) + CL^{-}(aq).

7 0
3 years ago
The _______ pulls on the water facing the moon creating a __________.
Fittoniya [83]

gravitational force, low tide

4 0
3 years ago
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