Look at position 2 on the roller coaster
Is there more potential or kinetic energy , why ?

Answer:

In chemistry, a precipitate is an insoluble solid that emerges from a liquid solution. The emergence of the insoluble solid from solution is called precipitation. Often the precipitate emerges as a suspension. Precipitates can form when two soluble salts react in solution to form one or more insoluble products.

Explanation: Hope this helps! :>

Answer:

Explanation:

Kinetic energy is the energy in motion. Cooling if liquid would cause decreased temperature and hence slow down the oscillation of the particles.

Likewise, increased heat reduces the force of attraction between said particles, which allowed for their free movement. So the cooling would have opposite effect.

Finally, the space between the particles would remain the same as it was originally, as their force of attraction is increased in the cooling process, they would take the form they are held in.

I hope this was helpful and concise?

Answer:

8 valence electrons

Explanation:

Neon is a noble gas, and all noble gases have 8 valence electrons. The same goes for its group; all elements in the last group of the periodic table have a full valence shell--8 electrons.

Answer:

Colors of transition metal compounds are due to two types of electronic transitions. Due to the presence of unpaired d electrons, transition metals can form paramagnetic compounds. Transition metals are conductors of electricity, possess high density and high melting and boiling points.

Explanation:

The  transition metals are  able to show different properties like varying color and paramagnetism due to presence of unpaired d-electrons.

The transition metals are defined as the elements  in which atoms are present whose d-sub-shell is partially filled .Due to which they give rise to cations with an incomplete d-sub-shell.

They are also defined as the elements which are present in the d-block of the periodic table, which includes groups from three to twelve.These elements are called transition elements as they show a transition between highly electro-positive group 1 and highly electro-negative group 17 elements.

They have characteristic properties due to which they can exist in variable oxidation states , form colored complexes and have catalytic properties as well.These elements are all technologically very important.

Learn more about transition metals,here:

https://brainly.com/question/29477193

#SPJ6

Answer:

ΔG = 80,278.67 J/mol

Explanation:

Given:

∆H = - 103.85KJ/mol

∆S = - 269.74KJ/mol

T= 298 K

The Gibbs energy change (ΔG) is calculated as follows:

ΔG = ΔH - TΔS

ΔG = (-103.85KJ/mol)-298K(- 269.74KJ/mol)

ΔG = (-103.85KJ/mol) - (-80,382.52 J/mol)

ΔG = 80,278.67 J/mol

Answer:

Tetranitrogen Nanobromide

Exothermic reactions release heat when the reactants produce products. The process of respiration is an exothermic reaction as it releases heat. Thus, option D is correct.

An exothermic is a type of reaction that involves the release of heat during the reaction through product formation. The respiration reaction is exothermic as it involves the breakdown of oxygen and glucose into energy.

Thermal decomposition is an endothermic reaction as it requires energy for completion. Similarly, photosynthesis and reaction between ammonium nitrate and water are endothermic reactions as they also require energy from the external source.

Therefore, respiration is an exothermic reaction.

Learn more about the exothermic reaction here:

https://brainly.com/question/1373669

#SPJ5

Answer:

kilograms

Explanation:

hope this helps, pls mark brainliest :D

Answer:kilogram

Explanation:

I got the smarts

Answer:

A. The smallest unit of matter.

Explanation:

Atoms make up everything and are the smallest unit of all units.

Answer:

The state of matter is solid

Explanation:

Answer:

When the following equation is balanced, what is the coefficient for HCl? Mg(s) + HCl(aq) -> MgCl2(aq) + H2(g) . 2. What are the coefficients that will balance the skeleton equation below? AlCl3 + NaOH -> Al(OH)3 + NaCl.

Answer:

1)Carbonated water is saturated with carbon, hence it gives off carbon through bubbles.

2)Adding sugar to water until it no longer dissolves creates a saturated solution.

3)Continuing to dissolve salt in water until it will no longer dissolve creates a saturated solution.

An unsaturated tea and sugar solution would be one into which you could add more sugar and have the sugar still dissolve

10

subtract the atomic mass from the atomic number

The final speed of the  green ball : 8.5 m/s

Given

mass of Croquet ball = 0.5 kg

v₁= 10 m/s

v₁'= 1.5 m/s

Required

the final speed

Solution

The law of conservation of momentum

m₁v₁ + m₂v₂ = m₁v₁ '+ m₂v₂' (1=red croquet ball, 2=green croquet ball)

v₂=0 (at rest)

Input the value :

[tex]\tt 0.5\times 10+0.5\times 0=0.5\times 1.5+0.5\times v_2'\\\\5=0.75+0.5v_2\\\\4.25=0.5v_2\rightarrow v_2=8.5~m/s[/tex]

Answer:

When the number of electrons does not equal the number of protons, the atom is ionized and then they are no longer atoms, they are known as ion(s).

Answer:

B 2

Explanation:

I checked it and it’s right hope this helps!!

Answer:

See explanation

Explanation:

1. Decomposition= when one compound or substance is separated into 2 elements.

2. Single displacement: b is switched with c

3. double displacement: when 2 reactants form 2 different products

Answer:

Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving.

Explanation:

Oxygen is used to degrade hydrocarbon compounds, which are broken apart by heating them. This is used to create combustion that usually liberates water and carbon dioxide, but can also produce the hydrocarbons acetylene, propylene and ethylene. Oxygen is used in sewage-treatment and water-purification plants.

Answer: 0.0009 moles of octane were used up.

Explanation:

To calculate the moles :

[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]

Given mass of octane = 0.1 g

Molar mass of octane = 11.23 g/mol  

Putting in the values we get:

[tex]\text{Moles of octane}=\frac{0.1g}{114.23g/mol}=0.0009moles[/tex]

Thus 0.0009 moles of octane were used up.

Answer:it says how to make an atom stable like ion if the atom is metal then it will lose the atom to be full outer shell and if it is non metal it will gain.

second thing there is also covalent bond which share electron with other atomto be full outer shell

hope this help!!

Answer:

Last Quarter also called Third Quarter.

Explanation:

Answer:

Amount of ice

Explanation:

When we talk about independent variable, we mean that variable in an experiment that is manipulated and its effect on the dependent variable is measured.

In this case, the amount of ice in each water sample determines the temperature of each sample. Hence the amount of ice is the independent variable.

Answer:

ice cubes added

Explanation:

Answer:

sodium bicarbonate, potassium bicarbonate and ammonium bicarbonate are the most commonly used bases.

Answer:

I DONT GET IT IETHER

Explanation:

DONT GET IT

Answer:

Mechanical energy is the energy that is possessed by an object due to its motion or due to its position. Mechanical energy can be either kinetic energy (energy of motion) or potential energy (stored energy of position). A moving car possesses mechanical energy due to its motion (kinetic energy).

Explanation:

Answer:

1.25 M

Explanation:

The molarity is found dividing the moles of solute by the litres of solution.

2.50 mol ÷ 2 L = 1.25 M

The concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution. Therefore, the molarity of  a solution prepared by dissolving 2.50mol of KCl into 2.00 L of solution is 1.25 M.

Molarity can be calculated by dividing number of moles of solute by volume of solution in liter. Molarity is affected by temperature. Its unit is mole/liter. It measure the concentration of any solute in a solution.

Mathematically,

Molarity= number of moles of solute/volume of solution in liter

number of moles of solute KCl= 2.50 mol

volume of solution in litre = 2.00 L

substituting all the given values in the above equation, we get

Molarity= 2.50 mol ÷ 2 L

Molarity =  1.25 M

Therefore, the molarity of  a solution prepared by dissolving 2.50mol of KCl into 2.00 L of solution is  1.25 M.

Learn more about Molarity, here:

https://brainly.com/question/16727614

#SPJ2