All categories

2 years ago

What causes a change in a state of matter? Help please

Chemistry

1 answer:

pickupchik [31]2 years ago

7 0

Answer:

Going through a phase. Adding or removing energy from matter causes a physical change as matter moves from one state to another. For example, adding thermal energy (heat) to liquid water causes it to become steam or vapor (a gas). Physical changes can also be caused by motion and pressure.

Explanation:

Hope this helps :)

You might be interested in

kompoz [17]

Answer:

10-10 above the 0 is positive and the ones below is - (negitive)

Explanation:

4 0

3 years ago

What is the relationship between the kinetic energy of molecules in an object and the object's temperature?

Gennadij [26K]

Answer:

Explanation:

Temperature measures the average kinetic (or motion) energy of the particles within a substance.

6 0

3 years ago

The picture compound has which bond?

Marina CMI [18]

Answer:

something

Explanation:

4 0

3 years ago

Read 2 more answers

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:

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

4 0

3 years ago

Is an alpha a product or reactant when released from an isotope

trasher [3.6K]

Answer:

Alpha decay

Explanation:

That's the definition of alpha decay

6 0

3 years ago