Answer:
who know
Explanation:
Positive two
Negative one
Negative two
Answer:
The correct answer is the c = negative one
Explanation:
Hello! Let's solve this!
The electron is a particle that is part of the atom. The atom is also made up of neutrons and protons. Protons have a positive charge and are located in the nucleus. Neutrons have a neutral charge and are also located in the nucleus.
The electron has a negative charge and travels its orbitals around the nucleus.
The correct answer is the c = negative one
Explanation:
Hydrogen's placement on the periodic table is a subject of debate among chemists. It's in Group 1 because it has one electron in its outermost shell, like the alkali metals. However, it's not a typical alkali metal and has some nonmetallic properties, like being a diatomic gas. Its unique position results from historical reasons and its ability to both lose and gain electrons, making it difficult to classify as a typical metal or nonmetal. Hydrogen's placement reflects its anomalous nature and the periodic table's limitations in fully capturing its properties.
Answer:
38.8 g
Explanation:
Density is just mass divided by volume, so if you know 2 of those 3 things you can solve for the other one.
Let's write it as: D = m/v
We know D, and we know v, so solve for m:
m = Dv
Now just plug in the the known values:
m = (0.98 g/ml)( 39.63 ml) = 38.8 g
(Notice how ml cancelled out, leaving grams, which is what we wanted for mass.)
b. Which of the following statements is true?
A) The average kinetic energy of the ice in cup A is less than that in cup
b.
B)The average kinetic energy of the ice in cup A is greater than that cup in
b.
C)The average kinetic energy of the ice cup A is equal to that in cup
b.
D)The average kinetic energies of the ice in cup A and the ice in cup B are not comparable.
Average kinetic energy is given by the formula:
KE(average) = 3/2*k*T
where k = Boltzmann constant = 1.38*10⁻²³ J/K
T = temperature in Kelvin (K)
Thus, the average KE is dependent only on temperature and independent of mass.
Since the temp in Cup A and B remains the same, the average KE will also be the same.
Ans C)