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4 years ago

When two metals touch in the mouth, a small shock is created. this is known as a?

Chemistry

1 answer:

Over [174]4 years ago

7 0

<span>When two metals touch in the mouth, a small shock is created. this is known as a </span>galvanic action

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EASY How does the force of friction affect the motion of objects?

QveST [7]

Answer:

It causes the object to slow down or stop.

Explanation:

Friction is a unknown force pressing against another force slightly, making the moving object slow down.

8 0

3 years ago

Read 2 more answers

What number is international system of units based on

fgiga [73]

I think it's 10 but i may not be right so, sorry if it's wrong lol

3 0

3 years ago

The vapor pressure of pure acetone is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the sol

mixas84 [53]

Answer : The mole fraction of the non-volatile solute in the solution is 0.195

Explanation :

According to the relative lowering of vapor pressure, the vapor pressure of a component at a given temperature is equal to the mole fraction of that component of the solution multiplied by the vapor pressure of that component in the pure state.

Formula used :

$\frac{\Delta p}{p^o}=X_B$

$\frac{p^o-p_s}{p^o}=X_B$

where,

$p^o$ = vapor pressure of the pure solvent (acetone) = 266 torr

$p_s$ = vapor pressure of the solution = 214 torr

$X_B$ = mole fraction of solute = ?

Now put all the given values in the above formula, we get:

$\frac{p^o-p_s}{p^o}=X_B$

$\frac{266-214}{266}=X_B$

$X_B=0.195$

Therefore, the mole fraction of the non-volatile solute in the solution is 0.195

4 0

3 years ago

Water combines with carbon dioxide Choose one: A. only in the atmosphere. B. to produce hydrogen sulfide. C. to precipitate calc

katovenus [111]

Water combines with carbon dioxide to produce slightly acidic groundwater

that dissolves limestone and forms caves.

This is because the reaction between water and carbondioxide to form

bicarbonate ions( HCO₃⁻). The bicarbonate ions dissociate into Hydrogen

atoms thereby increasing the acidity.

The acidic environment results in the formation of acidic groundwater that

dissolves limestone and forms caves.

Read more on brainly.com/question/25385913

8 0

3 years ago

the pH of a solution is a measure of the acidity or alkalinity of a solution. Water has a pH of 7 and, in general, acids have a

Sliva [168]

Answer:

7.1

Explanation:

equation to calculate pH is

$pH=-Log_{10}(a_{H^+})=-Log_{10}(8*10^-8) = -Log_{10}(8)-Log_{10}(10^{-8})=-0.9+8=7.1$

6 0

3 years ago