Answer:
B. Energy Molecule
Explanation:
Adenosine triphosphate, or ATP, is the primary carrier of energy in cells. The water-mediated reaction known as hydrolysis releases energy from the chemical bonds in ATP to fuel cellular processes. Adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things.
Answer:
Here's what I get.
Explanation:
William Crookes
Crookes found that when he passed a high voltage through an evacuated glass tube, the glass at the at the anode end began to glow.
He designed the famous Maltese cross Crookes tube, in which the cross produced a shadow. This showed that the mysterious rays travelled in straight lines. He also showed that the rays could be bent by a magnetic field.
Later researchers
At the time, atoms were the smallest particles known, and scientists thought they were indivisible. What carried the current was a mystery.
Crooke believed the “cathode rays” consisted electrically charged atoms. Others thought they were some new form of electromagnetic radiation.
J. J Thomson
They were all wrong.
J.J. Thomson extended Crookes’ work by making quantitative measurements on the particles in the rays.
By using electric and magnetic fields, he calculated their charge-to-mass (e/m) ratio and showed that their mass was 1/1800 times the mass of a hydrogen atom,
Therefore, these particles were not atoms. Thomson had discovered the first subatomic particle, the electron, and this led to his famous “plum pudding “ model of the atom.
Answer:
The corrects answer are "without greenhouse gases", "reduced reliance on fossil fuels", and "renewable fuel".
Explanation:
Fuel cells are more efficient than diesel or gas engines. Most fuel cells run quietly compared to internal combustion engines, which gives you a benefit by reducing noise pollution from internal combustion engines.
Hydrogen fuel cells also have the benefit that the only by-product they eliminate is water, reducing dependence on fossil fuels because of their non-polluting appeal.
Have a nice day!
The question is incomplete. The complete question is:
Calcium Carbide (CaC₂) is an unusual substance that contains a carbon anion (C₂²⁻). The reaction with water involves several steps that occur in rapid succession. CaC2 is a salt (notice that its name is similar to sodium chloride). When a salt dissolves in water, ions leave the crystal lattice and enter the aqueous (aq) solution. Write the relevant balanced chemical equation for the dissolution of CaC₂, in water.
Answer:
CaC₂(s) + 2H₂O(l) → Ca(OH)₂(aq) + C₂H₂(aq)
Explanation:
When a salt dissolves in water, it dissociates in its ions. In the Calcium Carbide, the cation is Ca⁺² and the anion is C₂²⁻, so the reaction is:
CaC₂(s) + 2H₂O(l) → Ca(OH)₂(aq) + C₂H₂(aq)
The base Ca(OH)₂ is soluble, so it will dissociate at Ca⁺ and OH⁻, but the C₂H₂ is stable and doesn't dissociate in the solution.
