Which compound when stirred in water will not pass through filter paper?

Answers

Answer 1

Answer: In regards to this question, there are no options given to choose from and this makes the question difficult to answer. I hope the answer i am giving is the one you were looking for. The compound Mg(OH)2 when stirred in water will not pass through a filter paper as it is bound to form a sediment. This sediment will get stuck in the filter paper.

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You have to prepare some 2 M solutions, with 10 g of solute in each. What volume of solution will you prepare, for each solute below? (Ar:H51,Li57,N514,O516,Mg524,S532.)a lithium sulfate, Li2SO4
What effect does attendance have on students grade in science class?Hypothesis:
One atom of silicon can properly be combined in a compound witha. three atoms of hydrogen.b. four atoms of calcium.c. two atoms of oxygen.d. one atom of chlorine.
After creating a Beer's Law plot using standard solutions of Q, you determined the slope of Beer's Law to be 0.543 M-1. Your unknown solution of Q tested in Part B of the experiment had an absorbance of 0.144. Determine the concentration (in molarity) of the unknown solution Q from Part B. Do not use scientific notation or units in your response. If Carmen adds zeros after the decimal place, your answer will still be graded correctly.

If 3.00 g of limestone reacted, what mass of calcium chloride would be produced?A) Calcium chloride
B) Carbon dioxide
C) water

Answers

a) CaCO₃ + 2 HCl = CaCl₂ + H₂O + CO₂
↓ ↓
1 mole 1 mole

molar mass :

CaCO₃ = 100.0 g/mol CaCl₂ = 111 g/mol

100 g CaCO₃ ------------- 111 g caCl₂
3.00 g CaCO₃ --------------- ?

3.00 * 111 / 100 =

333 / 100 = 3.33 g of CaCl₂
________________________________________

b) molar mass CO₂ = 44.0 g/mol

100 g CaCO₃ ---------- 44.0 g CO₂
3.00 g CaCO3 ------------- ?

3.00 * 44 / 100 =

132 / 100 = 1.32 g of CO2
____________________________________

c) molar mass H₂O = 18.0 /mol

100 g CaCO3 ------- 18.0 g
3.00 g CaCO3 ------- ?

3.00 * 18.0 / 100 =

54 / 100 = 0.54 g of H₂O
___________________________________

hope this helps!

What is meant by the solubility of a substance?and
What conditions must be specified when expressing the solubility of a substance

Answers

Solubility means the ability of a solute to dissolve in solvent to form a solution.

The temperature and pressure must be specified when expressing the solubility of a substance.

What is solubility?

Solubility is defined as the maximum amount of a substance that will dissolve in a given amount of solvent at a particular temperature.

The solute can be a solid, liquid or a gas.

The solubility of a solid or a liquid solute in a solvent is affected by the temperature, while the solubility of a gaseous solute is affected by both the temperature and the pressure of the gas.

Temperature must be specified because solubility varies with temperature. For gases, the pressure must also be specified. Solubility is specific for a particular solvent.

Therefore, Solubility means the ability of a solute to dissolve in solvent to form a solution.

The temperature and pressure must be specified when expressing the solubility of a substance.

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Solubility is the property of a substance (any state of matter) to whether it can be dissolved. So if a substance is soluble (i.e. salt - in water) it dissolves easily. If it is insoluble, then it does not dissolve.
Conditions that must be specified include the solute (the substance that is dissolved, such as the salt) and the solvent (the liquid in which the solute is dissolved).

Which scientist invented a model of the atom that most closely resembles the modern electron cloud model?j.j. Thomson

Niels Bohr

Ernest Rutherford

John Dlaton

Answers

Neil Bohr is the scientist who invented a model of the atom that most closely resembles the modern electron cloud model.

What is an atom?

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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The scientist that invented a model that shows the electron cloud is Neil Bohr.

If you mix chlorine lithium and nickel together which two elements would be the most reactive?

Answers

he reactivity of an element increases towards the top and right of the periodic table (until the column of noble gases is reached). Chlorine's outer shell contains 7 electrons that make it very reactive. Helium is a noble gas and is non reactive. Elements found in the middle of the table, like nickel and iron, are reactive, but less reactive than chlorine

Answer:

Helium will be inert. Lithium is the most reactive element, followed by chlorine.

Explanation:

The elements tend to resemble the closest noble gases in terms of their electronic configuration of the last layer, that is, having eight electrons in the last layer to be stable. Then, the reactivity of an element measures the tendency to combine with others to generate the mentioned stability.

Within a period, the groups located on the left of the periodic table are more reactive than groups on the right. This is because it is easier to lose the electron of the last layer possessed by the elements located on the left than more than one electron in the rest of the elements. When we reach a certain group the trend is reversed since it will be easier to gain the missing electrons to resemble the nearest noble gas. Therefore, in a period the reactivity of metals increases the further to the left in the period (less electrons to remove). The reactivity of nonmetals increases as the period progresses since it is the case in which it is easier to acquire electrons to acquire stability, and increases to advance in a period since the less electrons they need to acquire, the more reactants they are.

Within a group, as we descend into it, the electrons of the last layer are farther from the nucleus and, therefore, it will be easier to remove them. In the case of nonmetals, it will be more difficult to take electrons. Then the reactivity of the metals increases when advancing in a group (greater tendency to lose electrons) and the reactivity of the nonmetals increases the higher in the group (greater tendency to take electrons).

Finally, you have noble or inert gases. Its inert name is due to the lack of reactivity with other elements. This is due to its electronic configuration, because its outermost layer or valence layer is always complete, without the need to share, transfer or receive electrons forming bonds. That is, its outer layer is so stable that the element tends not to react with others except in very specific cases.

Taking into account everything mentioned above, it is possible to say that helium is a noble gas, so it will be inert. Lithium is the most reactive element, followed by chlorine.

certain solution has [OH-] = 4 x 10-3. Calculate the concentration of [H3O+] and the pH of the solution

Answers

Kw = 1 x 10⁻¹⁴

Kw = [ H₃O⁺] [ OH⁻]

1 x 10⁻¹⁴ = [ H₃O⁺] * 4 x 10⁻³

[H₃O⁺] = 1 x 10⁻¹⁴ / 4 x 10⁻³

[H₃O⁺] = 2.5 x 10⁻¹² M

hope this helps!

1. In part 1, you collected data about how the amount of sugar affects the amount of gas produced. Analyze those data and draw a conclusion. (16 points) a. What gas inflated the balloons? (2 points)

Answers

Answer:

carbohydrate is an essential biomolecule so the affect of suger fluctuates when enzyme consumes the substrates of glucose molecules

Answer:

Its Carbon Dioxide

Explanation:

I asked the AI

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