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2 years ago

Is Squeezing oranges to make orange juice a chemical or physical change?

Chemistry

2 answers:

a_sh-v [17]2 years ago

7 0

Squeezing just the juices out of the orange, like with your hand or whatever you use, is a physical change. yes :)

dimulka [17.4K]2 years ago

5 0

This would be a physical change because despite the fact the juice has been squeezed out of it, the orange is still an orange. A physical change is when something changes matter, like a solid to a liquid or a liquid to a gas. Since it's been changed from a solid orange to liquid juice, it's a physical change.

Hope I helped! :)

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Open the Balancing Chemical Equations interactive and select Introduction mode. Then choose Separate Water. Adjust the coefficie

aleksklad [387]

Explanation:

1. Water decomposition

Decomposition reactions are represented by-

The general equation: AB → A + B.

Various methods used in the decomposition of water are -

Electrolysis
Photoelectrochemical water splitting
Thermal decomposition of water
Photocatalytic water splitting

Water decomposition is the chemical reaction in which water is broken down giving oxygen and hydrogen.

The chemical equation will be -

$H_2O + H_2 + O_2$

Hence, balancing the equation we need to add a coefficient of 2 in front of $H_2O$ on right-hand-side of the equation and 2 in front of $H_2$ on left-hand-side of the equation.

∴The balanced equation is -

$2 H_2O$ → $2 H_2 + O_2$

2. Formation of ammonia

The formation of ammonia is by reacting nitrogen gas and hydrogen gas.

$N_2 + H$ → $NH_3$

Hence, for balancing equation we need to add a coefficient of 3 in front of hydrogen and 2 in front of ammonia.

∴The balanced chemical equation for the formation of ammonia gas is as follows -

$N_2+3H$ → $2NH_3$ .

When 6 moles of $N_2$ react with 6 moles of $H_2$ 4 moles of ammonia are produced.

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2 years ago

Which is a property of barium (Ba)?

777dan777 [17]

Answer:

i think but i am not sure but according to me it mainly reacts yo non metals and i think its very reactive if my answer is wrong then comment below this question i will see it and i will get an opportunity to learn something new

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3 years ago

Deﬁne atomic numberand mass number. Which can vary without changing the identity of the element?

Volgvan

Explanation:

Atomic number is defined as the number of an element which represents total number of protons.

When an atom is neutral then it means it contains same number of protons and electrons.

On the other hand, atomic mass is defined as the sum of total number of protons and neutrons present in an atom.

Protons of every element remains fixed because it shows the identity of each element but if we change the number of neutrons then also identity of the atom will remain fixed. This is because changing the number of neutrons will not show any change in number of protons.

For example, $^{2}_{1}H$ and $^{3}_{1}H$ are isotopes of hydrogen and they have same number of protons but different number of neutrons.

Thus, we can conclude that number of neutrons can vary without changing the identity of the element.

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2 years ago

A warning label is required to provide set information. The following list contains only some of this required information. What

antoniya [11.8K]

Labels for a hazardous chemical must contain:
• Name, Address and Telephone Number
• Product Identifier
• Signal Word
• Hazard Statement(s)
• Precautionary Statement(s)
• Pictogram(s)

So the answer is product identifier.

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3 years ago

Read 2 more answers

\hy carbon used to reduce the oxide of aluminium to get the metal?

irga5000 [103]

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Carbon is used to reduce the oxide of aluminium to get the metal, in case condensation happens during this process.

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Hope this helps!

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2 years ago