MULTIPLE CHOICE
What is the molality (m) of 3.5 mol of sugar in 2.5 kg of water?

Answer:  

0.15 sec/min = 9 sec/hour

9*24 = 216 seconds = 3.6 minutes

Explanation:

Answer:

216 Seconds

Explanation:

If every minute is 60 seconds than 60 multiplied by .15 is 9 Seconds Lost.

If every hour is 60 minutes compared to what we know than 24 hours multiplied by 60 is 1440 minutes.

Do the same math as before: 1440 x .15 = 216 Seconds

Answer:

Any polar substance

Explanation:

We know that non polar substances wont dissolve in water because they do not react properly with water molecules, any polar substance would dissolve in water and float in oil.

An unknown substance dissolves in water but separates and floats in oil is any polar substance.

Polar substance are defined as those whose bonding with atoms like nitrogen, oxygen, or sulfur has resulted in discrete positive and negative charge areas.

It can also be defined as an electrical pole is typically created when a molecule has more positive charges on one end than negative charges on the other, forming an electrical pole.

Non polar substances are defined as a molecule that lacks charges at the ends because its electrons are evenly distributed and those that cancel one another out symmetrically.

It is can also be defined as in covalent compounds, there is no change in electronegativity.

Thus, an unknown substance dissolves in water but separates and floats in oil is any polar substance.

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Answer:

This is a not a spontaneous reaction.

Explanation:

No, it would not be one because if you add the reactants the products would have to be the same (same types of atoms. number of atoms, and the arrangement of the atoms). In this case the reactants and the products are not equal.

Answer:

Exothermic

Explanation:

Combustion reactions are almost always exothermic because it is an oxidation reaction that produces heat and in this case it would be considered to be exothermic but there are few cases in which it would be considered endothermic. Combustion of Nitrogen is endothermic because Δ  is positive despite being a combustion reaction.

Answer:

The answer is B: main-group elements.

Explanation:

Answer:

b

Explanation:

Answer:

the value of q is negative

Answer:

The outer-shell similarity of the two elements suggests that arsenic, like phosphorus, can form three covalent bonds per atom, with an additional lone pair of electrons left unbonded.

Atomic number: 96

Oxidation states: +3, +4

Arsenic atom can form either three or five bonds in arsenic compounds.

In conclusion, arsenic is an element that could form three or five bonds in its compounds.

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Answer:

the ability to be dissolved, especially in water.

Explanation:

Answer:

C-74

Explanation:

carbon is 12 the hydrogen is 1 andthe oxygen is 16/-this is molecular mass for each element

the just follow the molecular formula and sub the valu

you sould be getting 74 ok

hope u understand

Answer:

The photoelectric effect proves that light has particle-like activity,The photoelectric effect happens when photons are shone on metal and electrons are ejected from the surface of that metal.

Explanation:

Answer:

first

Explanation:

0. 10 mol L-1 HF and 0. 10 mol L-1 CH3COONa a solution that is 0 is a good buffer system. so, option A is correct.

When acids or bases are introduced, a buffer system is a solution that resists changing in pH. Acidic solutions have pH values under seven and significant hydrogen ion ( H+ ) concentrations. Basic solutions have pH values higher than seven and high quantities of hydroxide ions ( OH- ).

The carbonate, carbonic acid buffer, the phosphate buffer, and the buffering of plasma proteins make up the body's chemical buffer system.

Plasma proteins, phosphate, bicarbonate, and carbonic acid buffers are among the buffer systems active in blood plasma. By excreting hydrogen ions and producing bicarbonate, which helps keep blood plasma pH within a normal range, the kidneys contribute to the regulation of acid-base balance.

Thus, option A is correct.

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Answer:

AgCl

Explanation:

Got correct on E2020

Answer:

B: AgCl

Source: trust me bro

Answer:

Yes both methods give a single product.

Explanation:

The answer can be Yes, both the methods will yield a single product. The correct option is D.

Alcohols can be made by hydrating alkenes or reducing aldehydes, ketones, acids, and esters. Water elements can be added to an alkene's doublebonded carbons in either a Markovnikov's or an antiMarkovnikov's manner.

When yeast ferments the sugars in grains, fruits, and vegetables, it produces it. For example, wine is made from grape sugar, and vodka is made from potato sugar.

In the presence of a catalyst, lower molecular weight olefins react with carbon monoxide and hydrogen in a reaction known as hydroformylation or the oxo reaction. The resulting aldehyde is then hydrogenated to produce alcohol.

Thus, the correct option is D.

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Your question seems incomplete, the probable complete question is attached below:

Answer:

47. C

48. d

49. a

50. b

51. e

52. c

53. c

54. a

55. b

Explanation:

Answer:

Explanation:

Oxidation reaction

The kind of reaction involving the transfer of electrons or hydrogen away from a molecule is called oxidation.

In the same vein, the molecule that receives the electron or the hydrogen atom is said to be reduced. This means that oxidation cannot exist in isolation without reduction.

In other words, oxidation is defined as:

While reduction is defined as:

More on oxidation/reduction reactions can be found here: https://brainly.com/question/3867774

Answer:

The secret to adding extra flavor to your Thanksgiving turkey is to season it liberally. To make sure that your favorite herbs permeate every bit of your bird, stuff a small bundle into the turkey cavity. Thyme, sage, parsley and a bit of rosemary are a great combination—but feel free to customize to your taste.

Answer: it definitely did help me a lot but sometimes it doesn’t make me happy like i will get stressed but it passes.

Explanation:

Answer:

Cause and effect, easy.

Answer:

When energy is either absorbed or released, it is indicative of a chemical change. Fireworks are an example of a chemical change that produces a temperature change and emits light.

Answer:

True

Explanation:

Volcanic eruptions and meteorite impacts were way more common back when the Earth was newly formed.

Given what we know, we can confirm that relative atomic mass is calculated by comparing the particles to the atomic mass of a carbon-12 atom.

Therefore, given its abundant nature and the fact that it has been extensively studied, we can confirm that a carbon 12 atom has exactly 6 protons and 6 neutrons, making it very stable and the standard to which other atoms are compared.

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Answer:

8

EXPLANATION hope this helps you

Answer:8

Explanation:

Answer:

600 kg/m³

d = m/v

[] d is the density

[] m is the mass

[] v is the volume

[Formula] d = m/v

[Plug-in] d = 3/0.0050

[Divide] d = 600 kg/m³

0.002 kg/m³

0.015 kg/m³

500 kg/m³

600 kg/m³

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer:

[tex]\boxed {\boxed {\sf 600 \ kg/m^3}}[/tex]

Explanation:

We are asked to find the density of a bowling ball. The density of an object is its mass per unit volume. It is calculated by dividing the mass by the volume.

[tex]\rho= \frac{m}{v}[/tex]

The mass of the bowling ball is 3.0 kilograms and the volume is 0.0050 cubic meters.

Substitute the values into the formula.

[tex]\rho= \frac{3.0 \ kg}{0.0050 \ m^3}[/tex]

Divide.

[tex]\rho= 600 \ kg/m^3[/tex]

The density of the bowling ball is 600 kilograms per cubic meter.

Answer: MOISTURE IN THE ATMOSPHERE, in the form of water vapor, liquid water, and ice, controls most aspects of our weather and climate. ... Atmospheric moisture is expressed as clouds, precipitation, storms, weather fronts, and other phenomena.

Answer:

science of electromagnetic fields

Explanation:

(winks and runs off)