Answer:
acid +base gives salt and water
acid and carbon gives salt and water and carbon dioxide
acid and metal gives salt and hydrogen
Answer:
Use friction
Explanation:
Friction is the force that stops something in motion. It also heats up something, creating a gravitational heat! A match striked against the lighter will create a flame, because of friction :)
Answer:
chlorine gas, sodium hydroxide, and hydrogen gas
Explanation:
The electrolysis of the sodium chloride NaCl solution (brine) will produce chlorine Cl₂ gas and solid sodium Na.
After that, because the reaction takes place in water solution, metallic sodium will react with water forming sodium hydroxide and hydrogen gas.
Na + H₂O → NaOH + H₂
Answer:
True
Explanation:
The speed that electromagnetic waves will travel within any medium is the same as those without a medium. The speed of electromagnetic wave is a constant and does not depend on the material of the medium.
- Electromagnetic waves are waves that do not require a material medium for their propagation.
- They are able to pass through vacuums and mediums with particles at constant speed.
- It is mechanical waves whose speed is medium dependent.
- Mechanical waves have varying speed based on the mediums they move through.
Answer:
0.3 J
Explanation:
The equation for heat capacity is Q = mcΔT where Q is the heat, m is the mass of the substance, c is the specific heat capacity of the substance and delta T is the change in temperature. Plugging those values into the equation, we have Q = (.500)(0.24)(27.5-25) = 0.3