Questions 4-6 Identify these three equations If they are alpha, beta, or gamma decay.

Answer:

It's because of the presence of protons.

Explanation:

A nucleus of an atom has protons and neutrons. We know that a proton has a charge of

+

1

, while a neutron has no charge, or

0

. Therefore, the nucleus of an atom will always have a positive charge.

Answer: 4.5

Explanation:

Answer:

The limiting reactant is copper (II) chloride

Explanation:

here you go

Answer:

Element X is Cs or cesium

Answer: 7.98 grams of [tex]Fe_2O_3[/tex] are produced if 10.7 grams of [tex]Fe(OH)_3[/tex] are reacted.

Explanation:

To calculate the number of moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]      .....(1)  

Putting values in equation 1, we get:

[tex]\text{Moles of} Fe(OH)_3=\frac{10.7g}{106.87g/mol}=0.100mol[/tex]  

The chemical equation for the reaction is

[tex]2Fe(OH)_3\rightarrow Fe_2O_3+3H_2O[/tex]

By Stoichiometry of the reaction:

2 moles of [tex]Fe(OH)_3[/tex] produce = 1 mole of [tex]Fe_2O_3[/tex]

So, 0.100 moles of [tex]Fe(OH)_3[/tex] produce= [tex]\frac{1}{2}\times 0.100=0.05mol[/tex] of [tex]Fe_2O_3[/tex]  

Mass of [tex]Fe_2O_3[/tex] =[tex]moles\times {\text{Molar Mass}}=0.05mol\times 159.69g/mol=7.98g[/tex]  

Hence 7.98 grams of [tex]Fe_2O_3[/tex] are produced if 10.7 grams of [tex]Fe(OH)_3[/tex] are reacted.

Answer: ...

Explanation:

Sodium, chlorine

Answer:

2Na = 2 Sodium [has 2 atoms]

Cl2 = Dichlorine (Chlorine) [has 2 atoms]

Is this what you wanted?? I'm not entirely sure if this is the answer you were looking for.

Answer:

These defensive driving skills can help you avoid the dangers caused by other ... being aware of the cars around you, checking your mirrors — the list goes on. ... It's not just teen drivers who are at fault: People who have been driving for a while ... car and a slow-moving truck in the same lane, it's a pretty sure bet the driver ...

Explanation:

Answer: What type of chemical reaction is rusting of iron?

Rust is formed when iron reacts with oxygen in moist air. The following chemical equation represents the reaction: 4Fe + 3O2 → 2Fe2O3. Water is necessary for the oxidation reaction to occur and to facilitate transport of the electrons.

Answer:

1.125

Explanation:

I think it is his because if you add 0.30 and 0.15 it adds up to 0.45 so you just multiply 0.45 and 2.5 and then it gives you 1.125. HOPE IT HELPS.

Answer:

kinetic energy possessed by Ceres = 4.806 × 10^(29) J

Explanation:

We are given;

Estimated mass; m = 3 × 10^(21) kg

Orbital speed; v = 17900 m/s

Formula for kinetic energy is;

K.E = ½mv²

K.E = ½ × 3 × 10^(21) × 17900²

K.E = 4.806 × 10^(29) J

Thus;

kinetic energy possessed by Ceres = 4.806 × 10^(29) J

Answer:

What do you mean need more details

Explanation:

Since a help device is a a communication gadget, we know that the help device will make use of radio waves.

A help device refers to a device that can be used for emergency communication. They are basically communication gadgets.

We must note that our communication gadgets such as television,  radio, cell phone etc all make use of radio waves. Hence a help device would make use of  radio waves.

Learn more about radio waves: https://brainly.com/question/3393755?

Answer:

The second answer. Fish hide within the coral. Hope this helps!!!!

Answer: Plasma

Explanation:

Answer: Plasma

Explanation:

Answer:

[tex]Na_3PO_4+Al(OH)_3\rightarrow3NaOH+AlPO_4[/tex]

Answer:

sodium carbonate im pretty sure (the formula is Na2CO3)

Explanation:

hope this helps :))

Answer:

true

Explanation:

Answer:

I believe it is hydrogen for the first and methane for the second.

Explanation:

Answer to 8: The most dangerous or harmful gas to humans in the atmosphere would be carbon dioxide. But reserchers have found that methane levels in ancient air samples and found that scientists have been vastly underestimating the amount of methane humans are emitting into the atmosphere via fossil fuels.

Answer to 7: The type of gases present are as critical to density as elevation and gravity, and all are interrelated. Certain atmospheric gases will create thick atmospheres. For example, atmospheres with abundant hydrogen tend to be thicker as gases will combine with hydrogen for greater mass.

Hope this helps!

Answer:

hydrate agen

Answer:

In chemistry, a dehydration reaction is a conversion that involves the loss of water from the reacting molecule or ion.

Dehydration reactions are common processes, the reverse of a hydration reaction.

Common dehydrating agents used in organic synthesis include sulfuric acid and alumina.

Explanation:

good luck

Answer:

382.5 grams

Explanation:

Find the molar mass of NaNO₃ and then multiply the number of moles by that molar mass :)

Answer:

chlorine is for pool

Explanation:

hope is help

Answer:

The correct answer is - increased the global average temperature.

Explanation:

Combustion is the process that increases the carbon dioxide in the atmosphere, which results in entering more energy into the Earth system than existed from it.  Therefore, the amount of energy increased in the system of the earth or surface of the earth.

The reason behind it is that carbon dioxide trapped and redirects energy back toward the Earth's surface, which is absorbed by Earth's surface and surface increased, and global average temperature increased.

Combustion process increases the global average temperature of the earth by absorbing and emitting the energy revert back to earth.

Combustion is a process exothermic process in which organic molecules burns in the presence of oxygen to produce energy in the form of heat and light and CO₂ gas.

CO₂ gas is a green house gas which traps the energy of the atmosphere and revert back it into the earth surface, due to which temperature of the earth surface and atmosphere increases which results in the elevation of global average temperature.

Hence, combustion increases the global average temperature.

To know more about combustion, visit the below link:

https://brainly.com/question/15246277

Answer:

Explanation: he axon releases chemicals called neurotransmitters. Neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron. ... The binding allows the nerve impulse to travel through the receiving neuron

Answer:

Energy can't be created nor destroyed but it can be transformed

Explanation:

Answer:

[tex]m_{soluto}=60g[/tex]

Explanation:

¡Hola!

En este caso, al considerar la unidad de concentración de porcentaje masa/masa, podemos escribir su fórmula como:

[tex]\%m/m=\frac{m_{soluto}}{m_{solucion}}*100\%[/tex]

Podemos identificar la masa de soluto (azúcar) como la incógnita, y resolverla como se muestra a continuación:

[tex]m_{soluto}=\frac{\%m/m*m_{solucion}}{100\%}\\\\m_{soluto}=\frac{20\%*300g}{100\%}\\\\m_{soluto}=60g[/tex]

¡Saludos!

Answer:

C.

Explanation: because potential energy is the starting point before it moves. nothing has to be done.

Answer:

The reaction between the salt and water is endothermic.

Explanation:

The reaction is endothermic because the reaction absorbs heat and causes the surroundings to become cooler.

Answer:

Oxygen: Carbon Dioxide

O2:2CO2

1:2

Answer: Harold car has better mileage

Explanation: US gallon is 3.785 litres and one mile is 1.6 km.

35 · 1.6 km/ 3.785 l = 14.8 km/l

The Harold's car has a fuel efficiency of 35 miles per gallon and has better gas mileage.

The efficiency is defined as the peak level of performance that uses the least amount inputs to achieve the highest amount of output.

Effectiveness is the ability to produce a better result, one that delivers more value or achieves a better outcome.

Efficiency is expressed as

Efficiency = output / input

The mileage of Harold's can be calculated as:

US gallon has 3.785 liters and 1 mile is 1.6 km

Thus  mileage = 35 x 1.6 km / 3.785 l

                       = 14.8 km/l

Mileage of Frank's car = 12 x 1.6 km / 3.785 l

                                     = 5.07 km/l

Thus, the Harold's car has a fuel efficiency of 35 miles per gallon and has better gas mileage.

To learn more about efficiency, refer to the link below:

https://brainly.com/question/13828557

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Answer:

Hydrogels can be defined as systems comprising of three-dimensional, physically or chemically bonded polymer networks entrapping water in intermolecular space.

Explanation: