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KIM [24]
4 years ago
12

When a gas molecule is heated, there is an increase in the mass of the gas

Chemistry
2 answers:
Scorpion4ik [409]4 years ago
8 0

Answer:

True

Explanation:

When temperature increases, the kinetic energy of the gas molecule increases. Since kinetic energy is proportional to mass, also the mass increases.

insens350 [35]4 years ago
3 0

The answer would be true.

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NaOH (aq) + H2SO4 (aq) > H2O + NaSO4 (aq)
Elden [556K]

Answer:

2 NaOH (aq) + H_2SO_4 (aq)\rightarrow 2 H_2O (l) + Na_2SO_4 (aq)

Explanation:

Let's correct and balance the given equation:

  • NaOH (aq) is sodium hydroxide, charge of sodium is +1, charge of hydroxide is -1, so it's fine;
  • H_2SO_4 (aq) is sulfuric acid, charge of hydrogen cation is +1, charge of sulfate is -2, sulfate is balanced by the two protons;
  • H_2O (l) is firstly a molecule, it's water, in its liquid state, the oxidation state of +1 for the two hydrogens is balanced by the oxidation state of -2 for oxygen;
  • sodium sulfate should be Na_2SO_4 (aq), since sulfate has a charge of -2, this would require two sodium cations to balance it.

The equation becomes:

NaOH (aq) + H_2SO_4 (aq)\rightarrow H_2O (l) + Na_2SO_4 (aq)

We require 2 NaOH in order to balance the two sodium cations on the right, this would yield a total of 4 hyrogens on the left, so we also need two water molecules to balance it fully:

2 NaOH (aq) + H_2SO_4 (aq)\rightarrow 2 H_2O (l) + Na_2SO_4 (aq)

4 0
4 years ago
What type of reactive intermediate is formed in the reaction of an alkene with aqueous acid to give an alcohol?
Mariana [72]

Answer:

The intermediate is carbocation.

Explanation:

The reaction of alkene with an acid to give alcohol is an electrophilic addition reaction.

In electrophilic reaction, the alkene is being attacked by an alkene.

in case of aqueous acid reaction with alkene , the electrophile is [H⁺].

When the proton attacks the alkene it generates carbocation.

The carbocation generated is formed based on stability of carbocation.

The mechanism is shown in the figure.

5 0
4 years ago
Pregnant women are often cautioned against cleaning cat litter boxes. This is because Toxoplasma, an intestinal parasite of cats
Verizon [17]

Answer: a communicable disease

Explanation: key word was transmitted and it was transmitted from a INFECTED living thing and then transmitted to another living thing

5 0
2 years ago
Why is pure silicon a poor conductor at room temperature brainly
trapecia [35]
Pure silicon is a poor conductor at room temperature because it has 4 valence electrons
4 0
3 years ago
indicators are chemicals that change colour in presence of an acid or an alkali. Universal indicators and pH meters are used to
Troyanec [42]

Answer:

Purple. Sodium Hydroxide is an Alkali/base. Bases and Alkalis

have a pH greater than 7, and turn blue-purple in universal

indicator.

Explanation:

7 0
4 years ago
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