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Yuki888 [10]
2 years ago
9

how do catalysts affect a chemical reaction?(1 point) lower activation energy lower activation energy lose activation energy los

e activation energy increase activation energy increase activation energy provide activation energy
Chemistry
1 answer:
atroni [7]2 years ago
6 0

Catalysts are chemicals that speed up reactions without changing themselves at the conclusion of the process.

By reducing the reaction's activation energy, they accelerate the pace of the reaction. By offering a surface or an orientation, catalysts reduce the activation energy of a process. supplying a different mechanism (a set of procedures the reaction must follow) with lower activation energy. As a result, catalysts facilitate the formation of chemical bonds between atoms to create novel combinations and new compounds.

Learn more about catalysts here:

brainly.com/question/12260131

#SPJ4

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Molar mass of c(no3)2
slava [35]

I believe that it is 187.56 g/mol

4 0
3 years ago
A wave is a disturbance that carries...
zimovet [89]
A wave is a disturbance that carries energy from one place to another. Matter is NOT carried with the wave! A wave can move through matter (a medium). If it must have a medium, it is called a mechanical wave.
7 0
3 years ago
Which of the following are SI units? Select<br> all that apply.
Dimas [21]
<h3>Answer:</h3>

Seconds (s)

Liters (L)

<h3>Explanation:</h3>

SI units relate to the International System of Units. These units are the base, metric units that are most commonly accepted for different measurements.

Common SI Units

The most common SI units are as follows:

  • Length - meter (m)
  • Time - second (s)
  • Mass - kilogram (kg)
  • Amount of substance - mole (mole)
  • Electric current - ampere (A)
  • Temperature - kelvin (K)
  • Volume - liter (L)

*Note that gram (g) is not an SI unit

Each type of measurement will only have 1 SI unit. This is the unit that will be expected for most answers. Sometimes this means converting an answer into a different unit so it is more widely accepted.

Why SI Units are Important

SI units are important for the same reason that the metric system is used. It gives a standardized list of measurements that scientists across the world can use. Also, it makes it easier to compare scientific findings and studies when all of the measurements are given in the same units.

There are times when it is unrealistic to use SI units. For example, when discussing space, using meters will not be realistic due to the size of space. Also, when measuring the mass of small elements, kilograms are too large. But otherwise, SI units should be used.

3 0
2 years ago
Give two similarities in the products when chlorine, bromine and iodine react with iron
Jlenok [28]

Answer:

Iodine. The reaction between hot iron and iodine vapor produces gray iron(II) iodide, and is much less vigorous. This reaction, the equation for which is given below, is difficult to carry out because he product is always contaminated with iodine. Iodine is only capable of oxidizing iron to the +2 oxidation state.

5 0
2 years ago
Predict the following product(s) of the following reaction? F2 + KCI →
slega [8]

Answer:

{ \rm{F _{2(g)}  + 2KCl _{(aq)}  → { \bold{2KF _{(g)} + Cl_{2(g)} }}}}

Explanation:

» The prediction is 98% correct because single displacement reaction type is highly possible.

This is because Fluorine has is more electronegative than Chlorine in Potassium Chloride. So, it strongly displaces Chlorine from the solution hence forming Chlorine gas.

» The 2% of wrong prediction maybe because of wrong reactant measurements following mole concept chemistry.

If you are asked the observation,

Observation » <u> </u><u>A</u><u> </u><u>green</u><u> </u><u>yellowish</u><u> </u><u>gas</u><u> </u><u>is</u><u> </u><u>formed</u><u>.</u>

This gas is Chlorine gas (Cl2)

5 0
2 years ago
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