As you move down group one of the periodic table, what happens to the atomic radii?

Answers

Answer 1

Answer: Atomic radius increases down a group, as the distance between the nucleus and the valence electrons increases.

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What kind of molecule can experience hydrogen bonding

Answers

A molecule with hydrogen bonded to O, N, or F.

Answer:

A molecule with hydrogen bonded to to O, N, or F

Explanation:

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Ayala is making salad dressing. She mixes oil and vinegar in a blender until a smooth consistency is formed. Explain whether this is a heterogeneous or a homogeneous mixture and why.

Answers

The correct answer would be homogeneous mixture. There are two types of mixture depending on the distribution of the components in the mixture. Homogeneous mixtures are mixtures which has uniform properties all throughout the mixture. For this case, the mixture of oil and vinegar had already achieved a uniform consistency.

Correct Answer: Mixture will be heterogeneous

Reason:
The mixture is said to be homogenous, if it contains single phase, On other hand, heterogenous system has, multiple phases. When, oil and vinegar are mixed together, on standing, the two liquids separates out as different phases. Hence, the mixture will be refereed as heterogeneous.

For each molecule, what should be determined? A) Number of pi bonds and if they are delocalized. B) Number of sigma bonds and if they are localized. C) Number of hydrogen bonds and if they are polarized. D) Number of covalent bonds and if they are ionic.

Answers

Answer:

Explanation:

A) Number of pi bonds and if they are delocalized:

Determine the number of pi (π) bonds in the molecule. Pi bonds are formed by the overlap of p-orbitals in a double or triple bond.

Assess whether these pi bonds are delocalized. Delocalization occurs when electrons in pi bonds are not localized between just two atoms but are spread out over multiple atoms or regions within the molecule. This typically involves resonance structures in organic chemistry.

B) Number of sigma bonds and if they are localized:

Determine the number of sigma (σ) bonds in the molecule. Sigma bonds are formed by the head-on overlap of atomic orbitals in single bonds.

Assess whether these sigma bonds are localized. In most cases, sigma bonds are localized between two specific atoms, meaning they involve a direct bond between those atoms.

C) Number of hydrogen bonds and if they are polarized:

Determine the number of hydrogen bonds in the molecule. Hydrogen bonds are a special type of dipole-dipole interaction involving hydrogen atoms bonded to highly electronegative atoms (such as oxygen, nitrogen, or fluorine) and other electronegative atoms.

Assess whether these hydrogen bonds are polarized. Hydrogen bonds involve a difference in electronegativity between the hydrogen atom and the electronegative atom, creating a polar bond. The extent of polarization can vary depending on the specific atoms involved.

D) Number of covalent bonds and if they are ionic:

Determine the number of covalent bonds in the molecule. Covalent bonds involve the sharing of electrons between atoms.

Assess whether these covalent bonds are ionic. Covalent bonds are typically characterized by the sharing of electrons, while ionic bonds involve the complete transfer of electrons from one atom to another, resulting in ions. Covalent bonds are typically nonpolar or polar, while ionic bonds are highly polar.

Describe how the catalyst, zymase speeds up the reaction shown

Answers

Describe how the catalyst, zymase speeds up the reaction shown

The catalyst zymase speeds up the reaction by catalyzing the fermentation of sugar into ethanol and carbon dioxide. It is mostly present in yeasts.

Simple chem question - please help!Given the equation: N2 +2O2 → 2NO2, what mass of oxygen is required to react completely with 7g of nitrogen?

A) 8 g
B) 16 g
C) 32 g
D) 64 g

Answers

Molar mass O₂ = 32.0 g/mol and N₂ = 28.0 g/mol

N₂ +2 O₂ → 2 NO₂

28.0 g -------> 32.0 * 2
7 g ----------> ?

Mass of O₂ = 7 * 32.0 * 2 / 28.0

Mass of O₂ = 448 / 28.0

= 16 g of O₂

Answer B

hope this helps!

Answer:

guy above is right

Explanation:

Which of these processes involves the splitting of an atom?nuclear fusionchemical reactionnuclear fissionphysical change

Answers

the process of splitting an atom into two nuclei is the nuclear fission

Other Questions

OSHA standards appear in the ___________ and are then broken down into ____________.

The total mass of the protons in an atom of gold-198 is approximately(1) 79 atomic mass units(2) 119 atomic mass units(3) 198 atomic mass units(4) 277 atomic mass units

Converting carbon to nitrogen by increasing the number of protons from 6 to 7 and decreasing the number of neutrons from 8 to 7 is an example of what type of decay?

BaCl2 (aq) and K2CrO4 (aq) combine in a double replacement reaction. Select the reaction below that correctly represents the products of the reaction. BaCl2 (aq) + K2CrO4 (aq) Ba (s) + 2KCl (aq) + 2Cr (s) + 2O2 (g) BaCl2 (aq) + K2CrO4 (aq) BaCrO4 (s) + 2KCl (aq) BaCl 2 (aq) + K2CrO4 (aq) BaCrO3 (s) + 2KCl (aq) + O (g) BaCl2 (aq) + K2CrO4 (aq) BaCrO4 (s) + KCl (aq)