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labwork [276]
3 years ago
10

How many elements have been discovered? A. 110 B. less than 110 C. more than 110

Chemistry
2 answers:
riadik2000 [5.3K]3 years ago
8 0
There are 115 known elements as of today (Feb. 13, 2016)

so, 'C' is the correct answer
Ivenika [448]3 years ago
6 0
C. more than 110. We have 115 elements known for Feb 2016.
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he total number of each of the atoms on the left and the right are the same thus the reaction equation is balanced.

<h3>What is the law of conservation of mass?</h3>

The law of conservation of mass states that, mass can neither be created nor destroyed. In view of the law of conservation of mass, the total mass of the reactants on the left-hand side must be the same as the total mass of products at the right hand side.

Thus is the total mass of the reactants and the products are not the same, it then follows that the reaction does not demonstrate the law of conservation of mass. In this case, the total number of each of the atoms on the left and the right are the same thus the reaction equation is balanced.

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2 years ago
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3 years ago
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(OPTION C)

3 0
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The towed
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B Phytoplankton - Zooplankton - Arctic cod - Ringed sal

Explanation:

The food chain that describes the path through which energy takes will be phytoplankton-zooplankton-Arctic cod-Ringed sal. Energy moves in the ecosystem from producers to primary consumers then secondary and tertiary consumers.

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4 0
3 years ago
Lead(II) chromate, PbCrO4, is a yellow paint pigment (called chrome yellow) prepared by a precipitation reaction. In a preparati
Roman55 [17]

Answer:

n = 0.1624 moles

Explanation:

n=\frac{m}{M} \\n=\frac{52.5}{323.1937} \\n= 0.1624 mol

8 0
2 years ago
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