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2 years ago

I just need answers please!!

Chemistry

2 answers:

otez555 [7]2 years ago

4 0

Answer:

#1 is an organism

#2 is cell

#4 - Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go

evablogger [386]2 years ago

4 0

Answer:

Now i can add a real answer

Explanation:

1: if you think about it you are made up of organs. and then other people will describe yoou as an organism Answer is organism

2:Smallest to biggest= cell-tissue-organ-organism

4:Circulatory/Cardiovascular System through the blood to most parts of the body provides nutrients and oxygen which is needed for our bodies to have ENERGY!

Citation= https://www.joliet86.org/assets/1/6/BODYSYSTEMNotes.pdf

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Which statement describes a process involved in the evolution of Earth’s early atmosphere?

yan [13]

Answer:

The statement describes a process involved in the evolution of Earth’s early atmosphere would be:

Cyanobacteria transformed carbon dioxide in the atmosphere into oxygen during photosynthesis

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3 years ago

Uranium (VIII) Sulfide formula

tresset_1 [31]

Answer:

US₂

Explanation:

Uranium sulfide (US₂)

Uranium atomic symbol = U

Sulfur atomic symbol = S

Uranium valency = +4

Sulfur valency = -2

So;

Uranium sulfide (US₂)

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2 years ago

What the meaning by the team alloy

marishachu [46]

Explanation:

I think you wanted to ask what is the meaning by the term alloy:

alloy is a metallic substance which is composed of two or three elements, as either a compound or solution..

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2 years ago

When water vapor changes to a liquid what is it called

Mademuasel [1]

Answer:

$hello \: your \: answer \: is \: here.$

Explanation:

<h2>Condensation is the change of water from its gaseous form (water vapor) into liquid water. Condensation generally occurs in the atmosphere when warm air rises, cools and looses its capacity to hold water vapor. As a result, excess water vapor condenses to form cloud droplets.</h2>

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5 0

2 years ago

(2-2) Looking at the chemical formula CaF2 (calcium fluoride), what do you think this substance is made of? (Choose ALL that app

mixer [17]

Answer:

Metal

Non-metal

Explanation:

CaF2 is an ionic compound. Ionic compounds are mostly composed of a metal and a non metal. Metals donate electrons to non-metals to form ionic compounds.

Calcium is a divalent ion of group two in the periodic table while F is a univalent nonmetal of group 17 in the periodic table. Hence the compound CaF2 is composed of a metal and a nonmetal.

7 0

2 years ago