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2 years ago

The SI unit of pressure is the ______________.

Chemistry

2 answers:

steposvetlana [31]2 years ago

5 0

The answer is Pascal

fiasKO [112]2 years ago

5 0

Answer:

Pascal

Explanation:

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Approximately 1 mL of two clear, colorless solutions-0.1 M Ba(NO3)2 and 0.1 M Na2SO4- were combined. Upon mixing, a thick, milky

murzikaleks [220]

Answer: balanced chemical equation: $Ba(NO_3)_2(aq)+Na_2SO_4(aq)\rightarrow BaSO_4(s)+2NaNO_3(aq)$

Net ionic equation : $Ba^{2+}(aq)+SO_4^{2-}(aq)\rightarrow BaSO_4(s)$

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

The balanced chemical equation is:

$Ba(NO_3)_2(aq)+Na_2SO_4(aq)\rightarrow BaSO_4(s)+2NaNO_3(aq)$

Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.

$Ba^{2+}(aq)+2NO_3^-(aq)+2Na^+(aq)+SO_4^{2-}(aq)\rightarrow BaSO_4(s)+2Na^+(aq)+2NO_3^-(aq)$

The ions which are present on both the sides of the equation are sodium and nitrate ions and hence are not involved in net ionic equation.

Hence, the net ionic equation is $Ba^{2+}(aq)+SO_4^{2-}(aq)\rightarrow BaSO_4(s)$

4 0

2 years ago

Which statement about a chemical reaction is true?

Afina-wow [57]

yes yes yes yes yes yes yes yes yes yes yes yes yes yes

7 0

2 years ago

Fire extinguishers that spray carbon dioxide on the fire, work very effectively because it forms a blanket around the burning ma

Arte-miy333 [17]

Answer:

I think it will option B it will retain enough heat

8 0

2 years ago

Given the equation:

My name is Ann [436]

Answer:

this isnt even a question...

Explanation: what the heck

6 0

2 years ago

How much energy is wasted as heat by an incandescent light globe

muminat

Electric current passes through a filament of an incandescent bulb, thereby increasing it temperature. When current flows, it contains electrons through the filament to produce light. Typically, incandescent light bulb consists of a glass enclosure that contains tungsten filament. The glass enclosure contains either a vacuum or an inert gas that serves as the filament protection from evaporating. Incandescent light bulbs contain a stem attached at to its base to allow the electrical contacts to run through the envelope without gas or air leaks.

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2 years ago