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Law Incorporation [45]
3 years ago
15

What substance speed up speeds up a chemical reaction

Physics
2 answers:
snow_lady [41]3 years ago
4 0
In order to speed them up, <span>catalyst are used. it is a substance that speeds up a reaction.</span>
charle [14.2K]3 years ago
4 0
 i believe it's called a catalyst.
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All atoms of a specific element have the same number of _______.
vodomira [7]

protons, the electrons and neutrons change but NEVER the protons.


8 0
3 years ago
Why does the temperature of ocean water remain relatively constant, despite large fluctuations in air temperature?
Maksim231197 [3]
Because it doesn't have anything to change the temp.
3 0
3 years ago
A cylindrical solenoid (radius r=0.6 m, turns N=600, length l=0.5 m) carries 15 A of current. What is the inductance L of the co
Anuta_ua [19.1K]

Answer:

L = 1.023 H

Explanation:

given,

radius of the cylindrical solenoid = r = 0.6 m

Number of turns = N = 600

Length = l = 0.5 m

Current in the cylindrical solenoid = 15 A

Inductance in the coil = ?

using formula

L = \dfrac{\mu_0\ N^2\ A}{l}

L = \dfrac{4 \pi \times 10^{-7}\times 600^2\times \pi r^2}{0.5}

L = \dfrac{4 \pi \times 10^{-7}\times 600^2\times \pi 0.6^2}{0.5}

L = \dfrac{4 \pi \times 10^{-7}\times 600^2\times \pi 0.6^2}{0.5}

L = 1.023 H

the inductance L of the coil is = 1.023 H

8 0
3 years ago
A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride.
Vsevolod [243]

Answer:

1.59 g/mL

Explanation:

Mass of CCl₄ = mass of flask and CCl₄ − mass of empty flask

m = 703.55 g − 345.8 g

m = 357.75 g

Density = mass / volume

d = 357.75 g / 225 mL

d = 1.59 g/mL

6 0
3 years ago
Why are chemical processes unable to produce the same amount of energy flowing out of the sun as nuclear fusion?
julsineya [31]

Answer:

Explanation:

One of the major differences between nuclear reactions and chemical reactions is that nuclear reactions involve larger amount of energy than chemical energy. <u>This is because the force between the protons and neutrons in the nucleus of an atom is much higher than the force of attraction between electrons and the positively charged nucleus, hence nuclear reactions involves/requires a larger amount of energy (because it's reactions involve the nucleus) than chemical reactions (because it's reactions involve the electrons)</u>.

Thus, during nuclear fusion, two light nuclei are bombarded against one another to produce a larger/heavier nuclei with the release of large amount of energy (because the forces between the protons and neutrons are much higher) unlike when two atoms/molecules are chemically combined together to form a new molecule with the rearrangement of electrons in the valence shells of the participating molecules.

3 0
4 years ago
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