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Anastaziya [24]
3 years ago
11

PLEASE HELP I will mark brilleint

Chemistry
1 answer:
zhuklara [117]3 years ago
6 0
1. b
2.a
3.c
I think . hope I get it right
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The best tool to use to locate the boundaries between countries is a(n) _____.
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The correct answer is (b) political map

The explanation:

when a political map: is different than other types of maps because it focuses on government or administrative boundaries rather than geographical or physical features. Instead of showing viewers what exists in the land, it shows those imaginary lines that serve to separate countries, states, territories, and cities. These maps generally include larger bodies of water, such as oceans, rivers, and lakes, as landmarks.

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so this is the correct answer.

8 0
3 years ago
which of the following testable questions will provide evidence that elements in the same group have similar properties?
Usimov [2.4K]

The testable question which will provide evidence that elements in the same group have similar properties is valency

<h3>What is the valency?</h3>

In essence, how many electrons are present in their outermost shell.

Valency and Groups in the periodic table, elements are arranged in order of their atomic numbers and hence, the periodic table is a systematic arrangement of elements in an array of vertical columns called Groups and horizontal arrays called Periods.

  • Complete question here:

which of the following testable questions will provide evidence that elements in the same group have similar properties A. Valency B. Orbit C. Group D. Period

Since, the reactive capacities of elements is dependent on the number of electrons on its outermost shell, we can conclude on this note that, Elements in the same group have similar properties.

Learn more on Groups and Valency:

brainly.com/question/1645905

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2 years ago
Step I of the proposed mechanism involves the collision between NO2 and F2 molecules. This step is slow even though such collisi
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Explanation:

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Rate, or give brainliest if you can :)

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