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3 years ago

Can someone best explain why a washing machine represents an open system

2 answers:

6 0

Open system is a system in which mass or energy can be lost to or gained from the environment. In this case, water and power come from external sources best explains why a washing machine would be considered an open system.

Ksenya-84 [330]3 years ago

6 0

I do not have a clue I don't really understand the question sorry

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Which orbital is the first to fill with electrons in a given principal energy level?

Mkey [24]

e) both s and p

hope this helps!

5 0

3 years ago

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Draw the structure of the compound formed from propanoic acid and dimethylamine

jeyben [28]

The compound form from propanoic acid and dimethylamine is 3-(dimethylamino)propanoic acid. Propanoic acid is a liquid carboxylic acid that has pungent and unpleasant smell resembling to body odor. Its chemical formula is C2H5C00H. Moreover, dimethylamine is an organic compound and a secondary amine that is colorless, flammable gas with an ammonia like odor. Its chemical formula is (CH3)2NH.

The 2D structure is attached here.

Download docx

7 0

3 years ago

Which model of an atom is correctly labeled?

Andreas93 [3]

Answer:

DUH

The nucleus is made up of the protons (which have a positive charge) and neutrons and surrounded by a cloud of electrons ( which have a negative charge ).

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3 years ago

Identify the following redox reactions by type. Check all that apply. (a) Fe + H2SO4 → FeSO4 + H2 combination decomposition disp

EastWind [94]

Answer :

(a) displacement reaction

(b) combination reaction

(c) disproportionation reaction

(d) displacement reaction

Explanation :

(a) The given balanced chemical reaction is,

$Fe+H_2SO_4\rightarrow FeSO_4+H_2$

This reaction is a single replacement reaction or displacement in which the the more reactive element (Fe) replace the less reactive element (H).

(b) The given balanced chemical reaction is,

$S+3F_2\rightarrow SF_6$

This reaction is a combination reaction in which the two reactants molecule combine to form a large molecule or single product.

(c) The given balanced chemical reaction is,

$2CuCl_2\rightarrow Cu+CuCl_2$

This reaction is a disproportionation reaction in which the chemical species gets oxidized and reduced simultaneously. It is also considered as a redox reaction.

(d) The given balanced chemical reaction is,

$2Ag+PtCl_2\rightarrow 2AgCl+Pt$

This reaction is a single replacement reaction or displacement in which the the more reactive element (Ag) replace the less reactive element (Pt).

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3 years ago

Select all of the answers that apply.

kifflom [539]

Land slides are observed due to volcanic eruption so land slides are created by volcanoes sometimes

Hence rest of these help to create volcanoes

plate tectonics : Due to movements of tectonic plates (divergence or convergence)

cracks in earth's crust

built up magma

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3 years ago

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