What are some behavioral adaptations for a porcupines?
Answer: Option (a) is the correct answer.
Explanation:
In order to maintain a neutral charge the number of protons must be equal to the number of electrons.
For example, in a neutral carbon atom the atomic number or number of protons is 6. Also, number of electrons present in carbon atom will be 6.
Thus, we can conclude that out of the given options for elements to maintain a neutral charge number of electrons and protons must be equal.
The correct answer is option B, above a bowl of ice water.
Standard temperature is zero degrees Celsius (°C) or 32 degrees Fahrenheit (°F). Standard pressure is 760 mmHg or 1 atm.
Both the conditions of Standard temperature and standard pressure is basically the freezing point of pure water at sea level.
Thus the air above a bowl of ice water is at standard temperature and pressure
Answer is B for Edmentum users
Answer :
Double replacement reaction : It is a type of reaction in which a positive cation and a negative anion of the reactants react to give a new compound as a product.
In this, A and C are the cations and B and D are the anions.
When one mole of potassium hydroxide react with the one mole of zinc chloride to give one mole of zinc hydroxide and 2 moles of potassium chloride.
The balanced chemical reaction is,