Answer:
1000
Explanation:
kilometer equals to 1000 meters
Sr(OH)2 (aq)
HBr (aq)
HCN (aq)
KOH (aq)
The pH of solution often differs. Assuming equal concentrations, The rank these solutions by pH are in the order of Highest pH to Lowest pH are Sr(OH)2(aq), KOH (aq), NH3(aq), HCN (aq) and HBr (aq).
The Strong electrolytes often dissociate fast in water when compared to the weak electrolytes that often dissociate partially.
Acids are known to have pH value smaller than 7, bases are known to have pH value greater than 7, and neutral salts have a pH value of 7.
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Answer:
Highest pH(most basic)
Sr(OH)2(aq)
KOH (aq)
NH3(aq)
HF (aq)
HClO4(aq)
Lowest pH(most acidic)
Explanation:
The concentration of H+ ion will determine the pH of a solution. The pH actually reflects the ratio of H+ ion and OH- since both of them can combine into water. Solution with more H+ ion will have a lower pH and called acidic, while more OH- will have high pH and be called basic. Strong acid/base will be ionized more than weak acid/base.
Sr(OH)2(aq) = strong base, release 2 OH- ion per mole
KOH (aq) = Strong base, release 1 OH- per mole
NH3(aq) = weak base, release less than 1 OH- per mole
HF (aq) =strong acid, release 1 H+ per mole
HClO4(aq) = stronger acid, release 1 H+ per mole
There is less energy at the end of the explosion than there is at the beginning.
There is the same amount of energy at the end of the explosion than there is at the beginning.<<<My answer
The amount of energy before and after the explosion depends on the type of reaction.
Can someone please check it?
The three-dimensional geometry of the atoms in the molecule
The ionic charge on each atom within the molecule
The way atoms share electrons to be connected to one another within the molecule
Answer:
The total electron configuration of each atom in the molecule
Explanation:
Electron distribution into energy levels or sublevels of atoms can be shown with different notations or electronic configuration. One of them is the lewis dot structure.
The Electron Dot Notation or Lewis Dot structure is a notation which shows only the chemical symbol of the element surrounded by dots to represent the valence electrons. The chemical symbol stands for the nucleus and all electrons except the valence ones. The dots are arranged at the four sides of the symbol in pairs called lone pairs Those that are unpaired are called odd electrons.
Answer:
Is the type of radiation with a higher frequency and energy.
Explanation:
Into the electromagnetic spectrum, there are several kind of radiation, the gamma one has the highest energy and frequency, because both characteristics are connected in a direct form.
Gamma radiation has higher energy and higher frequency among the different types of electromagnetic radiations.
Explanation:
The quantity of energy present in the photons determines the electromagnetic radiation type. Radio waves have low energy photons, while microwave photons have a bit more energy than the radio waves, infrared rays have more photons than the micro and radio waves, then followed by visible, ultraviolet, X-rays, and, the gamma-rays which is highly energetic among all.
A short wavelength means a high frequency, whereas, a long wavelength means a low frequency. In electromagnetic spectrum, the wavelength of gamma rays is shorter than all other electromagnetic rays. Hence, it has the high frequency.
What are some behavioral adaptations for a porcupines?