There are 2 different types of atoms there, that's why
Hope this will help
I think it’s B
<span>You may already know that when you breathe in, your body takes in oxygen from the air. When you breathe out, your lungs expel carbon dioxide back into the air. But the breath you breathe out contains more than just carbon dioxide.</span>
When you exhale (breathe out), your breath also containsmoisture. Because your mouth and lungs are moist, each breath you exhale contains a little bit of water in the form of water vapor(the gas form of water).
For water to stay a gas in the form of water vapor, it needs enough energy to keep its molecules moving. Inside your lungs where it's nice and warm, this isn't a problem.
Answer:
The time taken for the cross to disappear decreases as we move down the table
Explanation:
We have to take note of three important things we can see in the table.
1) the volume of HCl was held constant
2) the volume of the thiosulphate solution was increased steadily down the table
3) the volume of water was decreased steadily down the table.
We know that the rate of reaction increases with increase in the the concentration of reactants. The more the volume of reactants compared to the volume of the volume of water present, the higher the concentration of reactants and the faster the rate of reaction. This implies that it takes a shorter time for the reaction to get to completion.
As we increase the volume of thiosulphate and decrease the volume of water, we are manipulating the reactant concentration. In this case, concentration is being increased. Hence the reaction proceeds faster and it takes a shorter time for the cross to disappear. Hence the time taken for the cross to disappear will decreased steadily down the table.
All i know is the first one is electromagnet, the second one is attraction, the third is magnetism, the fourth is magnetize, the fifth is repulsion, the sixth is lines of force, the seventh is magnetic pole, the eighth is electromagnetism, the ninth is magnetic field, and the tenth is permanent magnet