Answer:
The birth rate and death rate are equal to each other because the population is staying the same.
Explanation:
Answer:
heterogeneous and homogeneous
Explanation:
la po ba abc?
Answer:
Barium.
Explanation:
Each chemical element is characterized by the number of protons in its nucleus, which is called the atomic number Z. But in the nucleus of each element it is also possible to find neutrons, whose number can vary. The atomic mass (A) is obtained by adding the number of protons and neutrons in a given nucleus.
The same chemical element can be made up of different atoms, that is, their atomic numbers are the same, but the number of neutrons is different. These atoms are called isotopes of the element. Isotopes means "same place", that is, since all the isotopes of an element have the same atomic number, they occupy the same place in the Periodic Table. So if a neutron is added to an atom, it becomes an isotope of that chemical element.
The isotopes of an element have the same chemical properties, but differ somewhat in their physical properties.
Barium has an atomic number of 56 (number of protons). Also, the mass number of this barium isotope is 130 (56 protons + 76 neutrons). Finally, since it has 54 electrons, two negatively charged electrons less than the number of positively charged protons, this isotope is a cation with oxidation number +2.
Answer:
1.3L/mols
Explanation:
At 30°C the rate constant is 0.010L/mols
As the rate doubles for each 10° rise in temperature:
At 40°:
0.010L/mols*2 = 0.020L/mols
At 50°C:
0.020L/mols*2 = 0.040L/mols
At 60°C:
0.040L/mols*2 = 0.080L/mols
At 70°C:
0.080L/mols*2 = 0.160L/mols
At 80°C:
0.160L/mols*2 = 0.320L/mols
At 90°C:
0.320L/mols*2 = 0.640L/mols
And at 100°C:
0.640L/mols*2 =
1.280L/mols ≅
<h3>1.3L/mols</h3>
Answer:
the family have been served dinner with the kids
the house has been watched by the police for week
the lights went off when i was doing my home work
