I observed evidence technician Josh Sanders dust the inside doorknob on the front door for latent fingerprints. Dusting the doorknob did reveal latent prints, which Sanders lifted with tape and transferred to a small card. That occurred at approximately 3:15 p.m. I later observed Detective Laura Wilson collect a bullet casing from the tile floor in the kitchen after another investigator first photographed the area. The bullet casing was found on the floor beneath the kitchen table and was picked up by Wilson (with gloved hands) and placed in an evidence bag. Collection of the bullet casing occurred at 3:42 p.m. I then looked in the guest bathroom down the hall from the kitchen and observed another evidence technician, William Soto, collecting unknown red fibers from inside the bathroom sink. The time was approximately 3:53 p.m. Soto collected the red fibers with tweezers and placed them inside an evidence bag.

Due to its symmetry and the fact that the pull of the two oxygen atoms on the electrons of carbon cancel each other out, carbon dioxide is a nonpolar molecule with polar bonds. Because the vector sum of the dipole moments of the two CO bonds is zero, the CO2 molecule is non-polar even if the CO bond in it is polar.

With carbon, each oxygen atom forms a double bond. Different electronegativities of carbon (C) and oxygen (O) result in unequal distribution of electrons between them. Due to the cancellation of the two bond dipole moments, there is no net molecule dipole moment. Carbon dioxide is a non-polar gas as a result.

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It turns electrical energy into KE.

This is the correct statement of how a generator works:

A generator is described as a device that converts motive power or fuel-based power into electric power for use in an external circuit.

Generators contrary to general opinion do not create electricity instead it uses the mechanical energy supplied to it to force the movement of electric charges present in the wire of its windings through an external electric circuit. This flow of electrons makes up  the output electric current supplied by the generator.

The present-day generators work on the principle of electromagnetic induction that was discovered by Michael Faraday.

Faraday realized that the above flow of current can be created by moving an electrical conductor in a magnetic field and this movement creates a voltage difference between the two ends of the conductor which causes the electric charges to flow, hence generating electric current.

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Complete question:

How does the generator work? Select the statement that describes that.

______It turns electrical energy into KE.

_____ It turns sound energy into electrical energy.

_____ It turns electrical energy into sound energy.

_____ It turns electrical energy into thermal energy.

_____ It turns KE into electrical energy.

Phosphorus and chlorine form bond is covalent bond.

A covalent bond is likely to form if the difference in electronegativity between the elements is less than 1.7.

For instance, the electronegativity of phosphorus (P) is 2.1 and that of chlorine (Cl) is 3.0.

These two numbers are differentiated by 0.9. Since 0.9 is lesser than 1.7, phosphorus and chlorine form a covalent bond.

Chlorine and phosphorus are both found on the right side of the periodic table, which is where nonmetals are. As a result, a covalent bond will be formed between the two nonmetals.

So, we can say that covalent bond is between phosphorus and chlorine.

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Considering the Boyle's law, the volume of the gas sample will be 997.908 mL.

Boyle's law states that the pressure of a gas in a closed container is inversely proportional to the volume of the container, when the temperature is constant: if the pressure increases, the volume decreases while if the pressure decreases, the volume increases.

Mathematically, this law expresses that if the amount of gas and the temperature remain constant, the product of the pressure by the volume always has the same value:

P×V= k

where P is the pressure, V is the volume, and k is a constant.

Analyzing an initial state 1 and a final state 2, it is fulfilled:

P₁×V₁= P₂×V₂

In this case, you know:

P₁= 1.10 atm

V₁= 694 mL

P₂= 0.765 atm

V₂= ?

Replacing in Boyle's law:

1.10 atm× 694 mL= 0.765 atm×V₂

(1.10 atm× 694 mL)÷ 0.765 atm= V₂

997.908 mL= V₂

Finally, the new volume will be 997.908 mL.

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Neutral atom generally means to atoms which don't react with any other atoms or elements.

If an atom has an equal number of electrons and protons, then it also has an equal number of negative (the electrons) and positive electric charges (the protons). As a result, the total electric charge of the atom is zero, and the atom is said to be neutral. Thus, all the elements in the periodic table are neutral atoms.

Example of neutral atom

For example a neutral sodium atom which contains 11 protons and 11 electrons. And after removing an electron from this atom we get a positively charged Na⁺ ion that has a net charge of +1. Atoms become negatively charged when it  gains extra electrons.

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lithification is a complex process where sediments are compact under pressure, expel connate fluids and converted into solid rock.

A rock is the collection of solid (grains) mineral materials that grow or become cemented together. it can be a natural substance composed of solid crystals of different minerals that have been blend together into a solid lump.

The major types of rocks are:

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Answer: The hot dissolved butter will form softer cookies.

Explanation:

Answer:

pH=7.32

Explanation:

pH is a mathematical expression that represents -log base 10 of the hydronium concentration:

[tex]pH=-\log[H_3O]\\pH=-log(4.75x10^-8)\\pH=7.32[/tex]

The formula of the hydrated potassium carbonate salt is K₂CO₃.2H₂O

Based on the calculated mass ratio of carbon and oxygen in carbon dioxide, carbon has a fixed composition.

Hydrated compounds are compounds that contain one or more molecules of water physically combined with a molecule of the compound.

The formula of the hydrated potassium carbonate salt is determined as follows:

Mass of the hydrated sample = 10.0 g

Mass of anhydrous salt = 7.83

mass of water = 10 - 7.83

mass of water = 2.17 g

Molar mass of water = 18.0 g

Molar mass of anhydrous potassium carbonate = 138 g

moles of anhydrous potassium carbonate in sample = 7.83/138

moles of anhydrous potassium carbonate = 0.056 moles

moles of water in the hydrated salt = 2.17/18

moles of water in the hydrated salt = 0.12

Mole ratio of water to anhydrous salt = 0.12/0.056

Mole ratio of water to anhydrous salt = 1 : 2

Formula of hydrated salt = K₂CO₃.2H₂O

The mass ratio of carbon to oxygen in the compounds is given below:

Sample 1:

Mass ratio = 3.62 / (13.26 - 3.62)

Mass ratio = 0.38 : 1

Sample 2:

Mass ratio = 5.91 / (21.66 - 5.91)

Mass ratio = 0.38 : 1

Sample 3:

Mass ratio = 7.07 / (25.91 - 7.07)

Mass ratio = 0.38 : 1

Carbon has a fixed composition.

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Both oxygen and iodine are non-metals. Neither contributes electrons to achieve octet stability. Instead of forming an ionic bond, these two electrons are shared to form a covalent bond.

If these two compounds react to form a compound, that compound is considered an ionic compound. The ionic form of rubidium is Rb+, while the ionic form of sulfur is S2-. Sodium reacts with oxygen to form ionic compounds.

On the other hand, sodium chloride contains ions. It is an ionic compound. Ionic compounds contain ions that are held together by attractive forces between oppositely charged ions. Table salt is one of the best-known ionic compounds. Rubidium is a positive element. It actively donates its single valence electron to form a positively charged cation.

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Answer:sulphur reacts with chlorine in 1:2

Explanation:hope this helps :)

The balanced chemical equation for acid-base reactions is as given below

2HCl(aq) + Ca(OH)2 ------ CaCl2 + 2H2O

A chemical equation is said to be balanced chemical equation if the atoms or molecules of different elements on the reactant side is equal to the atoms or molecules of different elements on the product side.

In the given reaction, HCl is reactant and Ca(OH)2 is base. They react with each other to form CaCl2 and release two molecules of H2O.

Now, we will balance the chemical equation.

On reactant side, there are 3 atoms of hydrogen atoms, one atom of chlorine, two atom of oxygen and one calcium atom. So, we equal it by reacting two molecules of HCl with one molecule of Ca(OH)2 to form one molecule of CaCl2 and two molecules of water.

Therefore, by balancing equation we get

2HCl(aq)+Ca(OH)2 ------ CaCl2 + 2H2O

Thus, we concluded that the balanced chemical equation for acid-base reactions is as given below:

2HCl(aq) + Ca(OH)2 ------ CaCl2 + 2H2O

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The statement which correctly explains how matter is conserved in chemical reactions is- Atoms of each element are conserved, so the total mass does not change.

The Law of Lomonsov-Lavoisier and the Law of Conservation of Mass are other names for the Law of Conservation of Matter. "The mass is not generated or destroyed, simply altered," according to this law.

As a result of the diverse atomic arrangements in the various substances, the reagents interact with one another to create new products that differ from the reagents in terms of their physical and chemical characteristics. But the amount of matter or mass before and after a transformation (chemical reaction) must always be constant; that is, the amounts of the masses involved in a given reaction must not change in their proportions when the reaction is complete.

n other words, the mass prior to the chemical reaction and the mass following the reaction are equal. Nuclear reactions are the exception to the norm, where it is possible to change mass into energy and vice versa.

Hence, the statement which correctly explains how matter is conserved in chemical reactions is- Atoms of each element are conserved, so the total mass does not change.

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Your question is incomplete please write the complete question over the internet.

The volume of the sample after the reaction takes place at constant temperature and pressure would be 5.4 L.

In the reaction: [tex]N_2(g) + 2H_2(g)-- > N_2H_4(g)[/tex]

Stoichiometrically, 1 mole of [tex]N_2[/tex] reacts with 2 moles of [tex]H_2[/tex] to produce 1 mole of [tex]N_2H_4[/tex].

In reality, 0.1500 mol of  [tex]N_2[/tex] reacts with 0.3000 mol of [tex]H_2[/tex]. The equivalent amount of [tex]N_2H_4[/tex] that would be formed will be 0.1500 mol according to the mole ratios from the balanced equation of the reaction.

Now, at constant temperature and pressure:

0.1500 + 0.3000 = 0.4500 mol

0.4500 mol is equivalent to 16.2 L according to the illustration.

0.1500 mol of  [tex]N_2H_4[/tex] is produced, the equivalent mole would, therefore, be:

0.4500 mol = 16.2 L

0.1500 mol = 16.2 x 0.1500/0.4500

                  = 5.4 L

In other words, the volume of the sample after the reaction takes place at constant temperature and pressure would be 5.4 L.

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