Answer:
One thing that is true about a surface wave is that
It has properties of both transverse and longitudinal waves.
Explanation:
Hope I helped!
Answer:
Heat it is placed near fire and the sun is a ball of fire
Explanation: TYYYYY
Whale fossil records show large-scale evolutionary changes from their ancestors to their descendants. By inspecting one particular ankle bone, the astragalus, in whale fossil, its shape and structure end a long standing dispute. The whale evolved from artiodactyls and not mesonychids.
<h3>Answer:</h3>
0.5 moles
Explanation:
moles are a way to compare different elements and are used a measurement of the amount of an element or molecule
I think your teacher wants you to convert 39g of Al(OH)3 to moles
we can use a method called stoichiometry to do this.
39g Al(OH)3 x 1 mol Al(OH)3 / 78g Al(OH)3 = 0.5 moles Al(OH)3
I got 78 by adding up the molar masses for Al, 3Os and 3Hs, make sure to add for 3 Os and Hs because of the subscript 3
