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enyata [817]
3 years ago
7

How is pressure related to buoyant force

Chemistry
1 answer:
REY [17]3 years ago
3 0

Buoyancy also known as buoyant force is the  force exerted on an object that is wholly or partly immersed in a fluid. Buoyancy acts upward for the kind of situations encountered in everyday experience.

 It is caused by differences in pressure acting on opposite sides of an object immersed in a static fluid. 

1.The pressure on the bottom of an object is greater than at its top (because pressure increases with depth).

2. The force on the bottom pushes up and the force at the top pushes down (since force is normal to the surface)

3. The direction of the net force due to the fluid is upward.


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100 points!! Brainliest if correct!!
Nadya [2.5K]
Here is your answer

B. NaCl

_________________
In option A. Na isn't present.
In option C. there are two atoms of Na
So, option B is correct

HOPE IT IS USEFUL
4 0
3 years ago
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When methane ( CH4 ) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reac
slega [8]
<h2>Answer:</h2>1.33*10^{-2}grams

<h2>Explanations</h2>

The complete balanced equation for the given reaction is expressed as;

CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)

Given the following parameters

Mass of CH4 = 5.90×10^−3 g = 0.0059grams

Determine the moles of methane

\begin{gathered} moles\text{ of CH}_4=\frac{mass}{molar\text{ mass}} \\ moles\text{ of CH}_4=\frac{0.0059}{16.04} \\ moles\text{ of CH}_4=0.000368moles \end{gathered}

According to stoichimetry, 1 mole of methane produces 2 moles of water, hence the moles of water required will be:

\begin{gathered} moles\text{ of H}_2O=\frac{2}{1}\times0.000368 \\ moles\text{ of H}_2O=0.000736moles \end{gathered}

Determine the mass of water produced

\begin{gathered} Mass\text{ of H}_2O=moles\times molar\text{ mass} \\ Mass\text{ of H}_2O=0.000736\times18.02 \\ Mass\text{ of H}_2O=0.0133grams=1.33\times10^{-2}grams \end{gathered}

Therefore the mass of water produced from the complete combustion of 5.90×10−3 g of methane is 1.33 * 10^-2grams

5 0
1 year ago
Need help with this.
Kay [80]

Answer:

Explanation:

H3PO4.

7 0
3 years ago
Read 2 more answers
true or false does the octet rule state that all atoms want to have 8 valence electrons in the outer shell
ladessa [460]

Answer:

false?

Explanation:

The octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have fewer than eight electrons, they tend to react and form more stable compounds

5 0
3 years ago
In Lab 3, Solubility Rules, students identified ionic salts as soluble or insoluble. The solubility of ionic salts is quantified
Hatshy [7]

Answer:

a) FePO4(s)⇄Fe^3+(aq) + PO4^3-(aq)

b) ZnCO3(s)⇄Zn^2+(aq) + CO3^2-(aq)

c) NH4Cl(s)⇄ NH4^+(aq) + Cl^-(aq)

Explanation:

An ionic solid simply means a solid substance that is held together by ionic bonds. When an ionic substance is added to water, the ions interact with the dipoles in water and is pulled apart to form the constituent cation and anion present in the ionic solid. This is the process that we have referred to as dissolution.

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a) FePO4(s)⇄Fe^3+(aq) + PO4^3-(aq)

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c) NH4Cl(s)⇄ NH4^+(aq) + Cl^-(aq)

5 0
3 years ago
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