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3 years ago

It is difficult to press the football in water why?

Chemistry

1 answer:

Sati [7]3 years ago

8 0

Answer:

The ball you want to submerge displaces the water occupied in the ball's volume. ... In water the concrete has a buoyancy pressure force equal to the displaced liquid's weight and weighs only 120 pounds until it reaches the surface.

Explanation:

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GUYSS JUST ONE QUESTION PLEASE HELPPP!!!!!!

Karolina [17]

Explanation:

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3 years ago

Consider the following precipitation reaction: Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq). Which ions are spectator ions? pls

Marta_Voda [28]

Potassium and Nitrate ions are spectator ions in the reaction:

$Pb(NO_3)_2(aq) + 2KI(aq)$ → $PbI_2(s) + 2KNO_3(aq).$

<h3>What are spectator ions?</h3>

Ions that are not involved in the actual chemical reaction are called spectator ions.

A precipitation reaction occurs when two ionic compounds react to produce a precipitate and an insoluble substance which stays in the solution as a spectator ion.

Hence, Potassium and Nitrate ions are spectator ions in the reaction:

$Pb(NO_3)_2(aq) + 2KI(aq)$ → $PbI_2(s) + 2KNO_3(aq).$

Learn more about the spectator ions here:

brainly.com/question/14050476

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2 years ago

When you receive a loan, the money the lender gives you is called the ____________. A. Interest B. Line of credit C. Principal D

Reika [66]

C. Principal !!!!!!!!!

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4 years ago

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How does electrolysis separate hydrogen and oxygen.

Paladinen [302]

Answer:process of using an electrical current to separate water into hydrogen and oxygen gas

Explanation:

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2 years ago

A patient needs to be given exactly 1000ml of 15% (w/v) intravenous glucose solution. The stock solution is 35% (w/v). How many

mezya [45]

In this question, the patient needs to be given exactly <span>1000ml </span>of a 15.0%. The content of the glucose should be:
weight= volume * density* concentration
1000ml * 1mg/ml *15%= 150mg.

The stock solution is 35%, then the amount needed in ml would be:
weight= volume * density* concentration
150mg= volume * 1mg/ml *35%
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4 years ago

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It is difficult to press the football in water why?​

It is difficult to press the football in water why?