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MrRa [10]
3 years ago
6

1.Light waves (shown) are an example of what type of wave? (Lesson 4.03)

Chemistry
1 answer:
lesya692 [45]3 years ago
6 0

Answer:

<em>suface wave</em>

Explanation:

<em>hope this helps </em>

<em></em>

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A 2.241-g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide.
nlexa [21]

Answer:

The empirical formula is = NiO

Explanation:

Given that:- Mass of nickel = 2.241 g

Mass of the oxide formed = 2.852 g

Mass of the oxygen reacted = Mass of the oxide formed - Mass of nickel  = 2.852 g - 2.241 g = 0.611 g

Molar mass of nickel  = 58.6934 g/mol

Moles of nickel = \frac{2.241}{58.6934}\ mol = 0.03818 mol

Molar mass of oxygen  = 15.999 g/mol

Moles of nickel = \frac{0.611}{15.999}\ mol = 0.03818 mol

Taking the simplest ratio for Ni and O as:

0.03818 : 0.03818 = 1 : 1

<u>The empirical formula is = NiO </u>

4 0
3 years ago
What is the relationship between mass and gravity
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Mass causes gravity.
5 0
2 years ago
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What has 20 electrons in 44 Mass
nadya68 [22]

It would be Calcium: Ca

6 0
3 years ago
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What material is least likely to be recognized as a mixture by looking under a microscope
I am Lyosha [343]
A homogenous mixture is uniform and thus hard to recognize as a mixture. An example is water.
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3 years ago
A bird sits on her eggs to keep them warm
Troyanec [42]

Answer:

This would be Conduction

Explanation:

Conduction is the transfer of heat between two surfaces in contact with each other like the bird and the eggs.

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