Answer:
Temperature
Explanation:
Here the factor that Elle is controlling is the temperature. So temperature here is the independent variable and the dependent variable is the rate of evaporation of water. Independent variable is controlled during the experiment setup and the outcome of the dependent variable depends on the independent variable.
Answer:
Double replacement reaction
Explanation:
Now, let us first write the reaction equation properly:
H₂SO₄ + 2KOH ⇒ K₂SO₄ + 2H₂O
The above reaction is a neutralization reaction between an acid and a base whose product gives salt and water only at most instances.
From here, we can observe that the species displaces on another in their ionic state. Hydrogen replaces potassium and water is produced. Potassium combines chemically with sulfate ions to give the salt of potassium.
Condensation
..when gas cool down into liquid statr its called condensation..
Answer:
I agree with Omar because it depends on what the charge of the object and magnet is. If the magnet is negative and the object is positive, they will pull together. If the magnet is negative and the object is negative then they will pull apart.
Explanation:
<span>B is less electronegative than F. So B becomes the central atom.
If we have three F atoms, then we will be using all three electrons from the B. We divide the 360 degrees of a circle by the number of electrons, i.e. 3 and get the bond angle as 120 degrees. The VSEPR theory states that when the electron-pair geometry is trigonal planar the bond angle is around 118 degrees.</span>
