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bixtya [17]
3 years ago
5

True or False. Ecosystems are always very large and cover a large amount of land.

Chemistry
1 answer:
Rainbow [258]3 years ago
3 0

False is the answer

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How to atoms form a new substance
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they join together

Explanation:

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What is the luster of aluminum
Mamont248 [21]

Answer:

Luster of aluminum is Silver-White.

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Aluminium is a Silver-White metal which is extracted from the Bauxite ore which can be reddish brown, white, tan, grey-white and tan-yellow in color and have the minerals like Gibbsite, Boehmite and Diaspore which are the minerals of the aluminium.

The Bauxite is the rock from which the Bauxite ore is extracted which have the minerals of the aluminum.

The luster of a metal is the color and shine of it and its shiny appearance.

Aluminium is a light weight metal but have a moderate hardness which makes a wider use of it. Aluminium is used in many places where the weight of the material is kept light but its hardness can be increased by mixing some other metals in it making hard alloy with lighter weight.

It is used in transportation vehicles, buildings, and many other places like Air crafts as the weight should be kept controlled to give a perfect lift to the Air craft.

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3 years ago
Combustion of 6.90g of this compound produced 13.8g of CO2 and 5.64g of H2O. What is the empirical formula of the unknown compou
Alla [95]
The empirical formula for the unknown compound would be: C2H4O (2 molecules of Carbon, 4 molecules of Hydrogen, and 1 molecule of Oxygen)
4 0
3 years ago
Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneo
Mashutka [201]

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a) Heterogeneous mixture (b) Homogenous mixture (c) Pure substance (d) Pure substance

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Homogenous mixtures contains mixture of substances with similar proportions while Heterogenous mixture contains substances with a varying proportion.

8 0
3 years ago
Choose the correct answer.
marishachu [46]

Answer:

B. Of

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They had good taste of music.

But I think 'in' is the best preposition.

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