i need help please I dont understand this ​

Answer:

283.43 g/mol

Explanation:

Answer:

2.30156

Explanation:

Answer:

2.30156

Explanation:

becuase one knot is equivalent to 1.15078, two knots is equivalent to 2.30156

Answer:

The economics in costing​ is explained below in complete details.

Explanation:

The economic cost is the blend and mixture of wastes of any assets that have a worth connected to them by any one person. The economic cost is practiced largely by economists as a method to examine the prudence of one sequence of performance with that of another. The economic cost varies from accounting cost because it incorporates opportunity cost.

Answer:

Phosphorus

Explanation:

Answer:

yup there right

Explanation: :))))

MgSO₄ and HNO₃ contain a common ion that will shift the equilibrium system. Therefore, option A, C is correct.

The equilibrium of a system can be defined as the state in which both the reactants and products in the chemical reactions are in concentrations that have not changed with time. The rates of reaction of the forward reactions and backward reactions are non-zero, but equal while in an equilibrium system.

By definition, a common ion can be described as an ion that enters the solution from two different sources. Solutions to which NaCl and AgCl are added also contain a common ion will be chloride Cl⁻ ion. The effect of common ions on solubility product equilibrium of the system.

The dissociation of sulphuric acid can be shown as:

H₂SO₄  → 2 H⁺  (aq)  +  SO₄²⁻ (aq)

MgSO₄ and H₂SO₄ have a common ion SO₄²⁻. H₂SO₄ and HNO₃ have a common ion H⁺ ion.

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Answer:

1. A, C

2. B- Equilibrium will sift to the left.

Explanation:

Answer:If biofuels are produced from feedstocks that would have been used for food, then biofuels directly reduce potential food supplies. This reduction occurs even if feedstock price increases result in an expansion of supply because the expanded feedstock supply will typically reduce the supply of other food crops.

Evidence remains limited on the impacts specifically associated with intensified biofuel production, although most of the problems are similar to those already associated with agricultural production – water depletion and pollution, soil degradation, nutrient depletion and the loss of wild and agricultural biodiversity.Specifically, using corn and other food crops to make fuel can raise food prices, pollute water systems, and lead to land-use changes that increase global warming pollution. Sustainable expansion of biofuels requires moving beyond food-based fuels like corn ethanol, and toward cleaner, non-food based biomass resources.

Answer:

Its B. corn

Explanation:

Answer:

In the baking soda and vinegar reaction, the new substances created are carbon dioxide gas, water, and something called sodium acetate. Carbon dioxide gas was inside the bubbles you saw. The detergent did not change in the reaction.

Explanation:

Answer:

these micronutrients are not produced in our bodies and must be derived from the food we eat.

Explanation:

Vitamins and minerals are micronutrients required by the body to carry out a range of normal functions. However, these micronutrients are not produced in our bodies and must be derived from the food we eat. Vitamins are organic substances that are generally classified as either fat soluble or water soluble.

Answer:

A

Explanation:

Answer:

see photo

Explanation:

PLATO answer

Answer:

The answer to the first question is C. Also im pretty sure the answer to the next problem is C as well

Explanation:

Answer:

C. is less than 0

Explanation:

The Gibbs free energy (G) of a system is defined as the energy that is used for the work done. The change in Gibbs free energy during a reaction shows the spontaneity and energetics of the reactions.

A reaction will be spontaneous if the change in Gibbs free energy will be negative or less than 0. Reactions with positive Gibbs free energy are non-spontaneous.

Hence, the correct answer is "C. is less than 0".

Answer:

true

Explanation:

Answer:

True there are a few.

Explanation:

Answer:

1,1,1,1 and yes it does.

Explanation:

Answer:

Atomic mass O is 15.9994.

Molar mass of O2 =2 X 15.9994=31.99880 g/mole.

10 g X 1 mole/31.99880 g X 6.022 X 10^23 atoms/mole =

188194557295898596197357 atoms in 10 grams O2.

Explanation:

Someone already asked/answered

Answer /Explanation:

Corresponding Equilibrium Expression: Pure solids or liquids are excluded from the equilibrium expression because their effective concentrations stay constant throughout the reaction. The concentration of a pure liquid or solid equals its density divided by its molar mass.

The chance of having children with blood group AB for a couple with the husband of heterozygous A (AO) and the wife of heterozygous B (BO) is 25%. The correct option is A.

The antigens of the ABO blood group are encoded by a single genetic locus, the ABO locus, which has three alternative (allelic) forms A, B, and O.

A child inherits one of the three alleles from each parent, resulting in six genotypes and four blood types.

Blood groups are inherited. They follow a Mendelian pattern, which means they are the result of a single gene.

There are three types of alleles in the ABO gene: A, B, and O. The first two, A and B, are codominant, which means they are equally dominant.

As per the attached Punnett Square, the genotype can be AB, AO, BO, and OO. So, the chance of having children with blood group AB as per the given scenario, will be 25%.

Thus, the correct option is A.

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Answer:

the VSEPR model utilizes electron-pair geometry (regions around the central atom) and molecular geometry (amount of lone pairs around the central atom–so whatever the electron-pair geometry is, you just count the amount of lone pairs in those regions).

Explanation:

No lone pairs around the central atom, the electron pair and molecular geometry would be the same. Bond angle differs depending on the electron pair geometry and molecular geometry you have for a molecule.

The VSEPR model is used to predict the shape of, and the bond angles in a molecule by counting the number of electron pairs on the valence shell of the central atom in the molecule.

The VSEPR model was introduced by Gillespie and Nyholm in 1957 to explain the shape of and bond angles of molecules.

The main point of the theory is that electron pairs on the valence shell of the central atoms of molecules position themselves as far apart in space as possible to minimize electron pair repulsion.

The number of electron pairs on the valence shell of the central atoms of molecules determine the shape and bond angle of the molecule.

If for instance, there are four electron pairs on the valence shell of the central atom of a molecule, the molecule is expected to be tetrahedral in shape with a bond angle of 109°.

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Answer:increase

Explanation: the more electrons there are the bigger the electron field is and the bigger the atomic radii is

The average atomic mass (sometimes called atomic weight) of an element is the weighted average mass of the atoms in a naturally occurring sample of the element. Average masses are generally expressed in unified atomic mass units (u), where 1 u is equal to exactly one-twelfth the mass of a neutral atom of carbon-12.

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LiCl

because Li loses 1 electron ==> Li+

and Cl gains 1 electron ==> Cl-

Li+ Cl-

we use the criss cross rule

===> LiCl

Answer:

its d

Explanation:

Answer: it is D

step by step

Answer:

C

Explanation:

that's really the only one that makes any sence

Explanation:

2NaOH +Cl2--> NaCl + NAOCl + HCl

IONIC EQUATION

2Na^+ + 2OH^- +Cl2-->Na^+ + Cl^- + NaOCl + H^+ + Cl^-

THE EQUATION IS NOT BALANCED FOR CHROLINE GAS.