Pls help ASAP I am literally so tired I hate this so much

Answers

Answer 1

Answer: a still lake . Is your answer

Related Questions

Is aluminium malleable or rigid?
What is the volume of 0.30 M NaOH(aq) neededto completely neutralize 15.0 milliliters of0.80 M HCl(aq)?(1) 3.6 mL (3) 20. mL(2) 5.6 mL (4) 40. mL
What will happen to the volume if the amount of a gas is decreased at constant temperature and pressure?
Which of the following is not part of daltons atomic theory
3. the closeness of a measurment to its true value is a measure of its ____ ?

Which statement describes a step in the formation of an ionic bond?An attraction occurs between two ions that have the same charge.
A metal atom forms a cation, and a nonmetal atom forms an anion.
A more electronegative atom transfers electrons to a less electronegative atom.
A metal pulls electrons from another metal and produces a force of attraction.

Answers

The correct answer is a metal atom forms a cation, and a nonmetal atom forms an anion. This is because metals are less electronegative than nonmetals and will therefore give electrons to nonmetals. Atoms that give up electrons will have a positive charge therefore becoming a cation while atoms that accept electrons will have a negative charge therefore becoming an anion.

Ions that have the same charge can't be attracted to each other since it takes a positive and negative charge to cause attractive forces.

A less electronegative atom will transfer electrons to a more electronegative atom.

A metal (cation) can pull electrons from another metal (not an ion) but that does not form an attractive force between the two metals (You will learn more about this when you go over reduction potentials, redox reactions, and electrochemistry).

I hope this helps. Let me know if anything is unclear.

The answer is (B) A metal atom forms a cation, and a nonmetal atom forms an anion.

Which of these would be easily soluble in water?a. salt
b. oil
c. aluminum foil

Answers

A) Salt, because salt can easily dissolve in water. Oil would not dissolve or evaporate in water (think of an oil spill - does that oil dissappear?). Aluminum foil would definitely not dissolve in water, so it is not soluble.

Answer:

salt

Explanation:

because is logic sense lol

Which can associate a suspect and the firing of a gun?( its not b )
A) markings on the gun's exterior
B) markings on the casing
C) markings on the bullet
D) powder residues

Answers

One that is can associate a suspect and the firing of a gun is powder residues. The correct option is D.

What is gun power residue?

GSR is made up of unburned or partially burned gunpowder particles, soot, nitrates, and nitrites from powder combustion, primer particles (oxides of lead, antimony, and barium), and bullet or bullet jacket particles that are vaporized when a firearm is discharged.

Gunshotresidue (GSR) is a speck of vital trace evidence that assists forensic scientists in solving a wide range of firearm-related incidents.

The identification of the shooter, as well as bullet identification from a gunshot wound, aid in the reconstruction of a crime scene.

Powderresidues are one thing that can link a suspect to a gunshot.

Thus, the correct option is D.

For more details regarding gun powder, visit:

brainly.com/question/21765586

#SPJ5

A solution of ammonia and water contains 1.80×1025 water molecules and 7.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution?

Answers

Answer:

6.40x10²⁵ hydrogen atoms

Explanation:

The solution contains:

1.80x10²⁵ water molecules (H₂O)
7.00x10²⁴ ammonia molecules (NH₄)

We need to calculate the total of hydrogen atoms (H) in the solution.

Each water molecule (H₂O) has 2 hydrogen atoms
Each ammonia molecule (NH₄) has 4 hydrogen atoms

Lets now calculate the number of hydrogen atoms in the solution:

total H atoms = (H atoms in water molecules) + (H atoms in ammonia molecules)

total H atoms = (2 x 1.80x10²⁵) + (4 x 7.00x10²⁴) =

total H atoms = 3.60x10²⁵ + 2.80x10²⁵ = 6.40x10²⁵

1 water molecule contains 2H atoms H atoms in 4.20*10^25 water molecules = 8.4*10^25 H atoms 1 NH3 molecule contains 3 H atoms H atoms in 6.00*10^24 NH3 atoms = 3*6.00*10^24 = 1.8*10^16 H atoms.

Total H atoms = 8.4*10^25 + 1.8*10^25 = 1.02*10^16 H atoms

Which of the following compounds does NOT contain molecules?a. H2
b. NaCl
c. CO2
d. H2O

Answers

Answer:

NaCl does not contain molecules

Explanation:

Molecules are made of multiple atoms bonded together to form a single entity.

In $H_(2)$ (H-H), two hydrogen atoms are bonded together through a covalent bond. Hence it is a molecule.

In $CO_(2)$ (O=C=O), one carbon atom and two oxygen atoms are bonded together through double bond. Hence it is molecule

In $H_(2)O$ (H-O-H), one oxygen atoms and two hydrogen atoms are bonded together through single bond. Hence it is a molecule.

In NaCl, $Na^(+) and Cl^(-)$ ions are held together through ionic attraction forces. Here no actual bond exists between $Na^(+) and Cl^(-)$ . Both $Na^(+) and Cl^(-)$ remain present as individual ions.

Hence NaCl does not contain molecules

B, molecules are ionic bonding this is covalent

How are ions Formed?

Answers

Answer & explanation:

For an atom to be electrically neutral, it must have the same amount of protons and electrons, but this does not always happen, so compounds called ions arise.

Ions are formed when an atom of an element has electron gain or loss due to reactions. They can be classified into cations and anions.

Anions are atoms that receive electrons, so they are negatively charged.

Examples: Cl⁻, O⁻², N⁻³

Cations are atoms that lose electrons and thus become positively charged.

Examples: Na⁺, Al⁺³, Pb⁺⁴

In addition, some compounds are formed in bonds between negative and positive ions. These are called ionic bonds.

Example: Formation of sodium chloride (table salt).

Na⁺ + Cl⁻ → NaCl

Ions are formed when atoms lose or gain electrons in order to fulfill the octet rule and have fuller valence electron shells.

Other Questions

How does the number of products in a synthesis reaction compare with the number of reactants? A) the number of products is greater than the number of reactantsB) the number of products is less that the number of reactants C) the number of products is the same as the number of reactants D) the number of products may be greater or less than the number of reactants

Lee and Celia are lab partners. While Celia pours a chemical into a graduated cylinder, some of the chemical splashes onto her arm. what should they do next? A. Lee should continue working with Celia after helping wipe off her arm. B. Lee should tell the teacher what happened to Celia when he leaves the lab. C. Lee should tell the teacher while Celia washes her arm with soap and water. D. Lee should have Celia stand in the safety shower while another student tells the teacher.

Which elements are included in Group 5A?

The mutual force of attraction between ions of opposite charges acn best be described as...A) an ionic bond B) a polar covalent bond C) an electronegative bond D) a non-polar covalent bond