Find the molarity of 194.55 g of sugar (c12h22o11) in 250. ml of water.

Answer:

Why has my town experienced record-breaking cold and snowfall if the climate is warming? Is there scientific consensus that people are causing today's climate change? Do natural variations in climate contribute to today's climate change?

Explanation:

Yan po ang answer tama po yan

Answer: 0.160 M

Explanation:

The products in the equation would be  [tex]CO_2[/tex], [tex]SO_2[/tex], and [tex]H_2O[/tex].

From the equation of the reaction:

[tex]CH_3SH + 4O_2 --- > CO_2 + SO_2 +2H_2O[/tex]

The products are [tex]CO_2[/tex], [tex]SO_2[/tex], and [tex]H_2O[/tex].

This is because, for every chemical equation, the reactants are always at the back of arrows while products are at the front of arrows. In other words, reactants are usually on the left-hand side while products are on the right-hand side.

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Answer:

400°C

Explanation:

22,000 cal / (0.11 cal/g°C x 500 g) = 400°C

Answer:

400 C degree change

Explanation:

22 000 cal = 500 g * (C) * .11 cal / g-C

C = 22 000 / (500*.11)   = 400 C  degree change

Answer: …

Explanation:

Answer:

a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.

42.6897 grams of carbon dioxide would be produced from the following reaction, if 175 kJ of energy is given off.

The mole (symbol mol) is the SI base unit of material quantity. The amount of substance in an object or sample is a measure of how many elementary entities of a certain substance are present.

Given chemical reaction is:

[tex]2CO + O_2[/tex]  → [tex]2 CO_2[/tex]

From the stoichiometry of the reaction, it is clear that 2 moles of carbon dioxide are produced.

Actual moles will be calculated by using the enthalpy and energy value as:

Actual moles of [tex]CO_2[/tex] = 275kJ × ([tex]\frac{2 mol}{566 kJ}[/tex]) = 0.97 moles.

Grams of carbon dioxide = moles  X molar mass of carbon dioxide.

Grams of carbon dioxide = 0.97  X 44.01 g/mol

Grams of carbon dioxide = 42.6897 g

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Answer:

Ionic bonds are when electrons are gained/lost. Hence the valence charges.

Answer:

Explanation:

2AlCl3 → 2Al + 3Cl2

In the reaction above, if we were to get 7.50g of AI, what would be the yield of the experiment.

Terbium-147 undergoes positron emission to become a stable atom, the stable atom is ₆₄Gd¹⁴⁷.

Series (or family) of natural radioactive decay is the set of elements with unstable nuclei, which follow an orderly sequence of spontaneous decay, that is, they emit alpha and beta particles, until a stable lead nucleus is created.

In this case, natural radioactive decay occurs when the nucleus of the atom of some chemical element is unstable and then it "breaks", releasing electromagnetic radiation and disintegrating.

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Answer:

repulsion

Explanation:

The name of this alkane is with central carbons are bonded to c h 3 is 2-methylbutane.

Alkanes belong to the family of  saturated hydrocarbons with carbon carbon single bond.

For the given alkane;

          CH₃    H

 CH₃ -  C   -  C - CH₃

            H      H

Thus, the name of this alkane is with central carbons are bonded to c h 3 is 2-methylbutane.

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Answer:

2-methylbutane

Explanation:

Answer:

The answer is option D.

Explanation:

Hope it helps!

Answer:

8000g

Explanation:

option   D  is the correct answer.

Weak bases are alkaline solution that does not get completely dissociated. The dissociation constant will be the ratio of the concentration of the products to the reactants.

The weak base ionization constant is the equilibrium constant that is given as the division of the products of the ionization to the concentration of the reactants.

The reaction for HCO₃ is given as:

HCO₃⁻ + OH⁻ ⇄ CO₃²⁻ + H₂O

The value of Ka for the given reaction will be:

Ka = [CO₃²⁻][H₂O] ÷ [HCO₃⁻ ][OH⁻]

Therefore, the Ka of the weak carbonic acid is given as the ratio of the concentration of the products to the reactants.

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This question involves the concepts of time period and tangential speed.

The tangential speed of the object is "5.1 x 10⁴ m/s".

The following formula gives the time period of the object:

[tex]T=\frac{2\pi}{\omega}\\\\[/tex]

[tex]\omega = \frac{2\pi}{T}[/tex]

where,

Therefore,

[tex]\omega=\frac{2\pi}{2.2\ x\ 10^4\ s}\\\\\omega=2.86\ x\ 10^{-4}\ rad/s[/tex]

Now, the tangential speed can be given by the following formula:

[tex]v=r\omega[/tex]

where,

Therefore,

[tex]v=(1.8\ x\ 10^8\ m)(2.86\ x\ 10^{-4}\ rad/s)[/tex]

v = 5.1 x 10⁴ m/s

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Answer: 5.1 x 10⁴ m/s

Explanation:

edge 2023

Predator - Lions (any animal that preys upon other animals)

Scavenger - Vultures (any animal that consumes decaying flesh)

Decomposer - Worms/ Fungi (any organism that breaks down dead organisms into smaller particles and creates new compounds such as nutrients for plants)

Answer:

Therefore, the oxidation state of sulphur atoms in Na2S2O3 is −2 and +6.

Answer:

Sand would most likely be a homogeneous mixture

Answer:

An ideal gas has identical particles of zero volume, with no intermolecular forces between them. The atoms or molecules in an ideal gas move at the same speed. Almost all gases obey the gas laws within a limited range of pressures and temperatures.

hope this helps!

Answer:

Gases have no definite shape or volume. They are fluid, allowing particles/molecules to move freely.

The behavior of a gas is that the volume changes directly with temperature. With a constant volume, the pressure will be directly proportional to the amount of gas.

Explanation:

These are some of the properties I can think of

The correct statements which are true for the reactions in the Sun are that are fusion reactions and reactions occur because of very high temperatures.

Nuclear fusion reactions are those reactions in which two species reacts with each other for the formation of new specie.

In the core of the sun, nuclear fusion of hydrogen atoms occur for the formation of helium molecules in the presence of high temperature.

Hence, the correct statements are they are fusion reactions and reactions occur because of very high temperatures.

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Answer:

It's B

Explanation:

as I answered it in study island.

Answer:

The vascular system, also called the circulatory system, is made up of the vessels that carry blood and lymph through the body. The arteries and veins carry blood throughout the body, delivering oxygen and nutrients to the body tissues and taking away tissue waste matter.

Explanation:

When we insert a new slide in a presentation, it is placed next or below in relation to the existing slides.

When we want to open a new slide we will Click on the New Slide button located on the Home tab in the Slides group. The new slide should appear below the selected slide.

So we can conclude that When we insert a new slide in a presentation, it is placed next or below in relation to the existing slides.

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