Which of the following statements best describes why strong acids and strong bases are good electrolytes?. . A. Strong acids and strong bases make water less pure.. . B. Strong acids and strong bases combine to form salts.. . C. Strong acids and strong bases neutralize each other.. . D. Strong acids and strong bases completely dissociate in water.. .

Answers

Answer 1

Answer: Strong bases are good electrolytes because they completely "dissociate" in water.

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Add 3 x 10^9 +5.3 x 10^10

Answers

Add 3 x 10^9 +5.3 x 10^10

3 x 10^9
+5.3 x 10^10
------------------
5.6 x 10^10

Answer:

3*10⁹ + 5.3*10¹⁰ = 5.6*10¹⁰

Explanation:

The values are given as exponents:

3*10⁹ and 5.3*10¹⁰

As per the rules:

-Before adding two numbers, all exponents must be the same

-The addition takes place between the numerical portion of the numbers

- The final value is rounded off to the least places in the decimal portion of the given numbers

Therefore, the two numbers to be added are:

$3*10^(9)+53*10^(9)=56*10^(9)$

Rounded off the final value to 1 decimal place gives:

5.6*10¹⁰

The volume of a gas decreases from 15.7 m3 to 11.2 m3 while the pressure changes from 1.12 atm to 1.67 atm. If the initial temperature is 245 K, what is the final temperature of the gas

Answers

The final temperature of the gas is 260.01 K.

The final temperature can be calculated by using the equation as follows:-

$(P_(1)V_(1) )/(T_(1)) =(P_(2)V_(2) )/(T_(2))$ ........(1)

Here, $P_1$ and $P_2$ is the pressure of this gas before and after the changes.

$V_1$ and $V_2$ is volume of this gas before and after the changes.

$T_1$ and $T_2$ is the temperature (in degrees Kelvins) of this gas before and after the changes.

Given values:-

$P_1=1.12\ atm, P_2=1.67\ atm\n\nV_1=15.7\ m^(3) , V_2=11.2\ m^(3)\n\nT_1=245\ K.T_2=?$

Substitute all the values in the equation (1) as follows:-

$(1.12\ atm*15.7\ m^(3))/(245\ K ) =(1.67\ atm*11.2\ m^(3))/(T_2 )\nT_2=(1.67\ atm*11.2\ m^(3)*245\K)/(1.12\ atm*15.7\ m^(3) )\n=260.60\ K$

Hence, the final temperature of the gas is 260.60 K.

To know more about:-

brainly.com/question/23967621

Explanation:

The data is given as follows.

$P_(1)$ = 1.12 atm, $P_(2)$ = 1.67 atm

$V_(1) = 15.7 m^(3)$ , $V_(2) = 11.2 m^(3)$

$T_(1) = 245 K$ , $T_(2)$ = ?

Therefore, calculate the final temperature using the relation as follows.

$(P_(1)V_(1))/(T_(1))$ = $(P_(2)V_(2))/(T_(2))$

$(1.12 atm * 15.7 m^(3))/(245)$ = $(1.67 atm * 11.2 m^(3))/(T_(2))$

$T_(2) = (1.67 atm * 11.2 m^(3) * 245 K)/(1.12 atm * 15.7 m^(3))$

= $(4582.48 K)/(17.584)$

= 260.605 K

= 260.61 K (approx)

Thus, we can conclude that final temperature is 260.61 K.

What year did tin got discovers and by whom tin is a element please help

Answers

Tin was found in 3000 BC, and nobody knows who discovered it!

I NEED HELP ASAP !!!!!!!!!!!!!! IF YOUR RIGHT ILL LIKE YOUR TIK TOKS OR GIVE U MOST BRAINLY
What is involved in redox reactions
A.the transfer of electrons between reactants
B.the bonding of ions to form chemical compounds
C.the addition of water to break down food macromolecules
D.the breaking down of water into hydrogen and oxygen atoms

Answers

Answer:

Explanation:

Redox reactions are comprised of two parts, a reduced half and an oxidized half, that always occur together. The reduced half gains electrons and the oxidation number decreases, while the oxidized half loses electrons and the oxidation number increases.

Answer:

Explanation:

What happens to a water bottle in a freezer and why

Answers

the water well begin to freeze and turn into soild. why? because the temperature of the the freezer is getting the water bottle cold so when that cold temperature hits that that bottle which has liquid in it so you should know that when liquid is into cold air it well so be soild so when you put the water bottle in the freezer it will be soild.
and also remember gas - liquid - soild gas change to liquid by hot air and liuid change to soild by clod air
hoped i helped

What makes hydrogen peroxide a polar molecule?

Answers

C. polar bonds and asymmetrical structure
If the molecule contains polar bonds but it has a symmetrical structure, the polar bonds will cancel each other out so the overall molecule will be non-polar.
On the other hand, if the molecule contains polar bonds but has an asymmetrical structure, then the polar bonds won't cancel each other out, so the overall molecule ends up being polar.

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