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Marizza181 [45]
3 years ago
15

As the movement of molecules within a substance increases, describe the change in heat of the substance. Justify your response i

n two or more complete sentences.
Chemistry
2 answers:
RSB [31]3 years ago
6 0

As the movement of molecules within a substance increases, the heat of the substance will also increase, as the molecules are vibrating more and so thermal energy will be passed between the molecules at an increased rate.

Vladimir [108]3 years ago
3 0
It will get hotter, because the molecules create heat when they move around just like us when we run.
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Id say i’m good i guess. send links for the brainly problems u need help with!
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2 years ago
If the density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 15.0 g of CO2 according
Svetradugi [14.3K]

Answer:

9.94 mL, the volume of ethanol needed

Explanation:

The reaction is:

C₂H₅OH(l) + 3 O₂(g) → 2 CO₂(g) + 3 H₂O(l)

We convert the mass of the formed product to moles:

15 g . 1mol / 44g = 0.341 moles

2 moles of dioxide are produced by 1 mol of ethanol, in order to stoichiometry.

Therefore, 0.341 moles of CO₂ must be produced by (0.341. 1) / 2 = 0.1705 moles of alcohol.

We convert the moles to mass, and then, the mass to volume by the use of density.

0.1705 mol . 46 g / 1 mol = 7.84 g of ethanol

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Ethanol volume = Ethanol mass /Ethanol density → 7.84 g /0.789 g/mL =

9.94 mL

7 0
3 years ago
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The trait for flower color in a plant has red and white alleles. The red color is the dominant trait. What is the phenotypic rat
Fudgin [204]
Answer :

2 red : 2 white

Explanation:

;)long story short

hetro with hetro gives 3:1
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Hetro :- ( Rr) one capital letter and one small
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6 0
3 years ago
Aqueous solutions of ammonium oxalate and lithium acetate react.
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Answer:

The reaction is a double displacement reaction

Explanation:

Let us consider the reaction equation of the reaction between ammonium oxalate and lithium acetate.

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The general form of a Double displacement reaction is of the format:

AB + CD → AD + CB

Where A,B,C and D represents different ions respectively.

A double displacement reaction can also be referred to as salt metathesis reaction, double replacement reaction, exchange reaction, or a double decomposition reaction, although the latter term is more strictly used when one or more of the reactants does not dissolve in the solvent.

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3 years ago
Gold has a density of 19.32 is this a chemical change or physical change
forsale [732]

Answer:

chemical change it is melted down

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