For a given chemical reaction, the addition of a catalyst provides a different pathway that(1) decreases the reaction rate and has a higher activation energy(2) decreases the reaction rate and has a lower activation energy
(3) increases the reaction rate and has a higher activation energy
(4) increases the reaction rate and has a lower activation energy

Answers

Answer 1

Answer:

Answer: Option (4) is the correct answer.

Explanation:

Activation energy is the minimum amount of energy required by the reactants to participate in the chemical reaction.

Therefore, reactant molecules whose energy is less than the activation energy are not able to participate in the reaction. Hence, a catalyst lowers the activation energy so that molecules with less energy can also participate in the reaction.

Thus, a catalyst is a specie that increases the reaction rate and has a lower activation energy.

Answer 2

Answer: For a given chemical reaction, the addition of a catalyst provides a different pathway that "(4) increases the reaction rate and has a lower activation energy"

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Mark and Ann took a two week hiking trip through Yosemite National Park. While hiking through the park they witnessed two large blocks of rock break away from Glacier Point. What is the initial transfer of energy that accelerates the rock down the side of the mountain?

Answers

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How many protons and electrons are in an atom of sodium whose atomic number is 11?

Answers

Atomic number is also known as proton number, so it would have 11 protons. Assuming you mean a neutral atom, it will have to have an equal number of electrons to protons, so it has 11 electrons too

Final answer:

An atom of sodium, with an atomic number of 11, has 11 protons and 11 electrons. The atomic number is indicative of both the number of protons in an atom and, in a neutral atom, the number of electrons.

Explanation:

The atomic number of an element corresponds to the number of protons in the nucleus of its atom. So, an atom of sodium whose atomic number is 11 has 11 protons. As the atom is neutral, it also means that the atom will have 11 electrons to balance the 11 positive charges of the protons. This information can be found on the periodic table, which gives the atomic number and the atomic mass of each element.

Learn more about Atomic Structure here:

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SE DESEA OBTENER UNA SOLUCION 0.3 MOLARIDAD DE HIDROXIDO DE POTASIO DISOLVIENDO 60 GRAMOS DE HIDROXIDO -¿QUE VOLUMEN DE SOLUCION SE OBTENDRA QUIMICA

Answers

Answer:

3.56L will be the obtained volume

Explanation:

0.3 M → Molarity

These are the moles of solute (for this case, the solute is KOH) that are contianed in 1L of solution

We dissolved 60 g of solute, so let's determine the moles:

60 g . 1 mol/ 56.1 g = 1.07 moles

Molarity(mol/L) = Mol / Volume(L)

Let's replace data: 0.3M = 1.07 mol / Volume(L)

0.3 mol/L = 1.07 mol / volume

Volume = 1.07 mol / 0.3mol/L = 3.56 L

Which of the following elements is an example of a metalloid? Silicon

Sodium

Silver

Platinum

Answers

Sodium is an earth-metal (group one), sliver and platinum are d-block metals.... Thus silicon is the metalloid and that is true because it looks like a metal being shiny blue-gray but it exhibit non-metal characteristics, except the fact that it can conduct electricity in a heated state.

The group of metalliods in the periodic table include: antimony, arsenic, boron, silicon, germanium, polonium all display semi-metal properties. So the answer would be Silicon.

. Detailed information about the possibilities and ways of adjusting cookies settings are available in the specify conditions of storing and accessing cookies in your brow

Answers

Answer:

Explanation:

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Formula equation is more informative than a word equation why

Answers

Answer:

yes

Explanation:

this is because the formula equation shows the details on how they solved the equation

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