If these teams are pulling with the same amount of force what will happen?

Chemistry

1 answer:

Usimov [2.4K]2 years ago

3 0

They will not move...

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Claims · Evidence • Reasoning A student

sashaice [31]

As with the properties of a substance, the changes that substances undergo can be classified as either physical or chemical. During physical changes a substance changes its physical appearance, but not its composition. The evaporation of water is a physical change.

(I searched that up but here’s an explanation with my own words that you can use):

Change in matter can be classified as a physical change as well as a chemical change due to the properties of substance. A physical change changes substance within its appearance but not its composition. For an example: The evaporation of water is a physical change.

There you go hopefully that helped

3 0

2 years ago

What are the two different ions present in the compound al(no3)3?

Aleks [24]

$Al^{3+}$ and $NO_3^{-}$

Aluminum nitrate is an ionic compound, meaning that it is made up cations and anions. By convention when writing the formula for an ionic compounds the cation part shall be placed in front the anions. Thus the cation would contain aluminum and the anion shall be a polyatomic nitrate ion consisting of nitrogen and oxygen. The bracket with subscript 3 attached resembles the ratio between the two species, aluminum ions and nitrate ions. For each aluminum ion in the compound there shall be three corresponding nitrate ions.

Aluminum form ions of charge +3 whereas nitrate ions are of charge -1. Write the charge of the ion as the superscript in reverse (i.e., write $3+$ as in $Al^{3+}$ and $-$ in $NO_3^{-}$ , omitting any 1.)

5 0

3 years ago

Calculate the amount of C in 0.600g of CO2.

pashok25 [27]

Answer: Since one molecule of CO2 contains one molecule carbon atoms, therefore, 0.6 molecule of carbon dioxide will contain 0.6 molecule of carbon.

Mass of C in 0.6 molecule of CO2

Explanation

= No. Of molecule × molar mass

= 0.6× 12gm

=7.2gm

8 0

2 years ago

Can someone please show me the workings to this answer? The marking scheme says (A) is the answer but I don’t understand how

lakkis [162]

1077kjmol¹- + 498/2kjmol¹- + enthalpy=805*2kjmol¹- =1610-1319=291kjmol¹-

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3 years ago

Which statement(s) correctly compare the masses of protons, neutrons, and electrons? Select two options.

Ludmilka [50]

Answer:

6 Electrons r smaller than a proton or a neutron

5 0

2 years ago