Balance the following chemical equation. Choose the correct coefficients in the balanced equation in order. *
4, 3, 2
2, 4, 2
1, 1, 1
3, 2, 3

There is an increase in temperature when the rate of chemical reactions increases.

The chemical reaction is the process in which the two or more substances where the reactions are converted into one or more different substances. These may be either chemical elements or compounds.

The chemical reaction rearranges the atoms of the reactants to create the different substances of the product. The speed of the reaction depends on the rate of temperature and as well reactant itself.

Find out more information about the chemical reactions.

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Answer:

It increases when a catalyst is added.

Explanation:

"A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism." (Khan Academy)

Answer:

2 iron atoms in Fe2O3

Answer:

Kristy thank you doing today hope you doing recently

Radio waves, ultraviolet rays, X-rays, and gamma rays are all examples of electromagnetic radiation, as are microwaves.

There are several uses for microwaves, including for communications, radar, and—possibly for the most part—cooking. Waves or particles of electromagnetic radiation with various wavelengths and frequencies are communicated.

The electromagnetic spectrum (EM spectrum) is the name given to this wide spread of frequencies. In general, the spectrum is divided into seven areas in ascending sequence of increasing energy and frequency and decreasing wavelength.

Radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays, and gamma-rays are some of the common names for these types of energy. In the electromagnetic (EM) spectrum, microwaves are found between radio and infrared light.

Therefore, Radio waves, ultraviolet rays, X-rays, and gamma rays are all examples of electromagnetic radiation, as are microwaves.

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Answer:

electrical and mechanical engineering

Answer:

electrical engineering

Explanation: i took quiz

Answer:i dont even know

Explanation:

help me

Answer:

0.0162 moles (3 s. f.)

Explanation:

moles = mass / Ar

moles = 3.2 / 197.0

moles = 0.0162436

moles = 0.0162 (3 s. f.)

Na2SO3 – Sodium sulfite

Answer:

4.00M NaOH

Explanation:

A 50-ml amount of 40.0M NaOH contains

(40.0 mol NaOH/1 L)×(0.0500L) = 2.00 mol NaOH

Adding enough water to make a 500.0 mL NaOH solution, the new concentration of this solution is

2.00 mol NaOH/0.5000 L = 4.00M NaOH

Answer:condensation

Condination

Explanation:

Answer:

volume is how much an object can hold, pressure is the force the pushes things into the center, and temperature, if extreme heat can cause pressure. and volume of an object can hold certain amounts of pressure from temperature.

Explanation:

Answer:

Its letter A

Explanation:

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Garden forks were originally made of wood, but the majority are now made of forged carbon steel or stainless steel. Hence, option A is correct.

Metals are opaque, lustrous elements that are good conductors of heat and electricity.

A garden fork is used similarly to a spade in loosening and turning over soil.

Its tines allow it to be pushed more easily into the ground, and it can rake out stones and weeds and break up clods, it is not so easily stopped by stones, and it does not cut through weed roots or root-crops.

Garden forks were originally made of wood, but the majority are now made of forged carbon steel or stainless steel.

Hence, option A is correct.

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Answer:

is this done on a chrombook? it looks like it pls i need points to get to 1000 points so please just leave my answer

Explanation:

Answer:

Dna

Explanation:

You're welcome

Answer: The new volume is 95.45 mL.

Explanation:

Given: [tex]V_{1}[/tex] = 45.0 mL,         [tex]P_{1}[/tex] = 0.98 atm

[tex]P_{2}[/tex] = 2.1 atm,               [tex]V_{2}[/tex] = ?

According to Boyle's law, at constant temperature the pressure of a gas is inversely proportional to its volume.

Therefore, formula used to calculate the new volume is as follows.

[tex]\frac{P_{1}}{V_{1}} = \frac{P_{2}}{V_{2}}[/tex]

Substitute the values into above formula as follows.

[tex]\frac{P_{1}}{V_{1}} = \frac{P_{2}}{V_{2}}\\\frac{0.98 atm}{45.0 mL} = \frac{2.1 atm}{V_{2}}\\V_{2} = 95.45 mL[/tex]

Thus, we can conclude that the new volume is 95.45 mL.

Answer:

2 moles of H2

Explanation:

From the equation

2 mol Na gives 1 mol H2

When we have 4 mole of Na then we get 2 moles of H2

Answer:

1.204 × 1024

Explanation:  i just did this question

The volume of the gas is 1.27 L at a temperature is 47°C and the pressure is 5.0 atm. Therefore, option (B) is correct.

The ideal gas equation is described as the equation of the state of a perfect gas. The ideal gas equation is the product of the pressure and volume of one-mole gas is equal to the multiplication of the absolute temperature and gas constant.

The mathematical equation for a perfect gas is as follows:

PV = nRT

where n is the moles of an ideal gas, P is the pressure of the gas,  V is the volume, and R is the universal gas constant.

Given, the initial volume of the gas, V₁ = 2.0 L

The initial temperature of the gas, T₁ =  27° C = 300.15 K

The initial pressure of the gas, P₁ = 3.0 atm

The final temperature of the gas, T₂ =  47° C = 320.15 K

The initial pressure of the gas, P₂ = 5.0 atm

We know that for an ideal gas:

[tex]\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}[/tex]

[tex]V_2=\frac{P_1V_1T_2}{T_1P_2}[/tex]

[tex]V_2= \frac{3.0\times2.0\times320.15}{5.0\times 300.15}[/tex]

[tex]V_2= 1.27 L[/tex]

Therefore, the volume of the gas in its final state is equal to 1.27 L when the gas is heated to 47ºC and compressed to 5.0 atm.

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Answer:

number 1 I think

Explanation:

I did this at school but forgot

Answer:

personification

Explanation:

Personification can be regarded as literary tool which is used when qualities or abilities that can only be portrait by human or that can only be seen in human is given to an animal or object. This creative literary tool is been used to adds interest as well as fun to poems or stories. It is been used by writers to bring non-human things to life, and It helps the reader to have better understand of the writer's message.

Answer:

los metales alcalinotérreos: berilio (Be), magnesio (Mg), calcio (Ca), estroncio (Sr), bario (Ba) y radio (Ra).

o simplemente llamado grupo 2A

Explanation:

Answer:

Na

Explanation:

Answer:

It releases energy from the breaking of bonds during its combulsion stages.

Explanation:

(This expanation is not from me, its from qizzlet.com. but the anserw is made by me)

When propane burns, heat and light are produced. Where does this energy come from? The energy comes from, the breaking of the bonds and it is being released.

Answer:

Respiration is the process humans and animals breathe c02 out

Answer:

CO2 is released into the air when we breathe

The process is called respiration

Answer: a) Table Salt

good luck

Answer: For question, C. 224.1534

Explanation:

1 mole is equal to 1 moles Zn3N2, or 224.1534 grams.

Answer:

Explanation:

Answer:

D. 17

Explanation:

Halogens (group 17) are most likely to form a -1 ion. This is because they want to complete their octet. A prime example of this is sodium chloride. Sodium chloride is an ionic compound. Sodium gives up its valence electron, therefore, recieving a +1  charge, and Chlorine takes it, giving it a -1 charge. Chlorine is also in group 17, halogens.

Answer: the answer is D.17

Explanation:

Answer:

B. gas state at room temperature

Explanation: