He more population the less resource cause people use the resources
First look at the molar mass of Al, which is 26.98 grams. That means that there are 26.98 grams in one mole of Al. To find the moles in your given sample of 64.1 grams, just divide that value by the molar mass of 26.98 grams. That will give you a final answer of 2.38 moles in 64.1 grams of Al.
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Answer: all atoms of the same element have the same atomic number.
Explanation:
atomic mass differentiates them, which is the same as the mass number.
Answer:180°
Explanation:
According to VSEPR theory, if the valence shell of the ceteral atom in a molecule contains only two valence electron pairs, the valence electron pairs will arrange themselves along a straight line, forming a bond angle of 180°
Answer:
Here
Explanation:
Some assume our planet's changing distance from the sun causes the change in the seasons. That's logical, but not the case for Earth. Instead, Earth has seasons because our planet's axis of rotation is tilted at an angle of 23.5 degrees relative to our orbital plane, that is, the plane of Earth's orbit around the sun