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3 years ago

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[GT.02]Which of these forces in carbon-14 isotopes transforms a neutron into a proton?gravitational forceselectromagnetic forces

weak nuclear forcesstrong nuclear forces

1 answer:

Dmitrij [34]3 years ago

3 0

Answer:

The weak nuclear force.

Explanation:

This force is active in radioactivity.

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What statement best explains how life functions a unicellular organism are carried out?

s344n2d4d5 [400]

Answer:

The structures in the cell work together to perform its life functions

Explanation:

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2 years ago

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You have 0.5 L of air at 203 k in an expandable container at constant pressure. You heat the container to 273 k. What is the vol

Jobisdone [24]

You can use P1V1/T1 = P2V2/T2 but since pressure is constant is becomes V1/T1=V2/T2

V1=0.5 L
T1=203 K
T2=273 K
V2=unknown

0.5L/203 = V2/273
V2= 0.67 L so C

Hope this helps :)

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3 years ago

A 0.1326 g sample of magnesium was burned in an oxygen bomb calorimeter. the total heat capacity of the calorimeter plus water w

Sladkaya [172]

Answer: Th enthalpy of combustion for the given reaction is 594.244 kJ/mol

Explanation: Enthalpy of combustion is defined as the decomposition of a substance in the presence of oxygen gas.

W are given a chemical reaction:

$Mg(s)+\frac{1}{2}O_2(g)\rightarrow MgO(s)$

$c=5760J/^oC$

$\Delta T=0.570^oC$

To calculate the enthalpy change, we use the formula:

$\Delta H=c\Delta T\\\\\Delta H=5760J/^oC\times 0.570^oC=3283.2J$

This is the amount of energy released when 0.1326 grams of sample was burned.

So, energy released when 1 gram of sample was burned is = $\frac{3283.2J}{0.1326g}=24760.181J/g$

Energy 1 mole of magnesium is being combusted, so to calculate the energy released when 1 mole of magnesium ( that is 24 g/mol of magnesium) is being combusted will be:

$\Delta H=24760.181J/g\times 24g/mol\\\\\Delta H=594244.3J/mol\\\\\Delta H=594.244kJ/mol$

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3 years ago

How does energy travel in a mechanical wave?

nlexa [21]

I think the answer would be medium

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2 years ago

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Life vest floats in the water therefore what do you know about the life vests density?

Ymorist [56]

Answer:

their density is only lighter than water because of the air inside. without the air you would sink even if you were holding it firmly.

Explanation:

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3 years ago