Answer:
It is a chemical element with an atomic number.
c. Copper
b. Silver
d. Gold Please select the best answer from the choices provided A B C D
Answer:
c
Explanation:
did quiz
What do you think energy has to do with the heating systems
Answer:
thermal energy is used to heat water, which is pumped through a system of pipes and radiators. a warm-air heating system burns fuel in a furnace to produce thermal energy.
Answer:
B
Explanation:
What are the coefficients that should be added to balance this equation? Use complete sentences to explain your answer.
Explain how this chemical reaction demonstrates the conservation of mass.
Answer:
Start by balancing the carbon atoms:
There is one carbon atom on each side of the equation, so carbon is already balanced.
Next, balance the hydrogen atoms:
There are four hydrogen atoms on the left (in CH4), so we need four HCl molecules on the right to balance the hydrogen atoms. The equation now becomes:
CH4 + Cl2 → CCl4 + 4HCl
Now, balance the chlorine atoms:
There are two chlorine atoms on the right (in CCl4), so we need two Cl2 molecules on the left to balance the chlorine atoms. The equation now becomes:
CH4 +
Explanation:
Even though the number of atoms on the left side (reactants) is 7 and on the right side (products) is 9, the law of conservation of matter is still upheld. This is because we need to consider the coefficients (the numbers in front of each compound) to account for the total mass. When you balance the equation and adjust the coefficients, you'll find that the total number of atoms remains the same on both sides, satisfying the law of conservation of matter.
Answer:
Explanation:
H⁺ = 1.2 x 10⁻²
pH = - log[H⁺]
= - log [ 1.2 x 10⁻²]
= - log1.2 + 2
= - .079 + 2
= 1.921 .
liquid to vapor
vapor to liquid
liquid to solid
liquid to solid i think
the answer is liquid to gas :)