Jamal is 2 miles away from his home.
Option B.
<h3><u>Explanation:</u></h3>
The initial distance of Jamal from his home is 8 miles. He needs to return home from his trip.
The speed that Jamal kept was constant for 30minutes and he drove at a speed for 12 miles per hour.
Speed of Jamal = 12 mph.
Time of travel = 30minutes =0.5 hours.
So distance traveled by Jamal = 
miles. = 6miles.
Initial distance of Jamal = 8 miles.
So final distance = 
miles = 2miles.
So Jamal is 2 miles away from his home.
Answer:
Explanation:
Carbon is also found in the atmosphere where it's a part of carbon dioxide gas emitted when fossil fuels are burned and when living organisms breathe. It's in organic matter in the soil, and it's in rocks. But far and away the most carbon on Earth is stored in a surprising place: the ocean.
Answer:
See diagram and explanation
Explanation:
Nickel belongs to group 10 in the periodic table. Its valence orbitals are the 4s2 3d8 orbitals. Nickel has two unpaired electrons in ground state as we can see from the image attached.
The pairing pattern for nickel is also shown in the image.
Answer:
Mass = 1785.6 g
Explanation:
Given data:
Moles of lead oxide = 8 mol
Mass in grams = ?
Solution:
Formula:
Number of moles = mass/ molar mass
Mass = number of moles × molar mass
Molar mass of PbO = 223.2 g/mol
Now we will put the values.
Mass = 8 mol × 223.2 g/mol
Mass = 1785.6 g
Thus 8 moles of lead oxide have 1785.6 grams.
Answer:
Diffusion is the movement of a substance from an area of high concentration to an area of low concentration.
Diffusion happens in liquids and gases because their particles move randomly from place to place.
Diffusion is an important process for living things; it is how substances move in and out of cells.
