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3 years ago

I need the correct answers

Chemistry

2 answers:

bogdanovich [222]3 years ago

4 0

Answer:

Acids: Tastes Sour

Has a ph less than 7

Base: Bitter

Has a ph greater than 7

slippery

Acid&Base: Conducts electricity

katen-ka-za [31]3 years ago

3 0

Acid
Tastes sour
Has a ph less than 7

Bases
Tastes bitter
Has a ph more than 7
Feels slippery

Acids and bases
Conducts electricity

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PLEASE ANSWER ASAP!

uranmaximum [27]

Not for sure but i would say the its B rate please

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3 years ago

Lily is doing a science experiment with a substance in a sealed jar. At first,

Serhud [2]

Answer:

Faster, and the substance will be a gas.

Explanation:

I'm quite not sure with it. But, I've tried my best. Since maybe the substance is liquid

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3 years ago

The number of protons + number of neutrons is equal to the

max2010maxim [7]

Answer: mass

Explanation: the protons and neutrons make up the nucleus and nearly the entire mass of the atom

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3 years ago

CO2+2H2O=H3O^++HCO3^-

bekas [8.4K]

Answer:

Bronsted Lowry Theory

$CO_2$ is the acid

$H_2 O$ is the base

$H_3 O^+$ is the conjugate acid and

$HCO_3^-$ is the conjugate base

Explanation:

Bronsted Lowry Theory:

An acid is a substance that can donate one or more protons

A base is a substance which can accept one or more protons

Hydrogen atom which is neutral (No Charge) contains 1 positive proton, 1 negative electron and 0 neutral neutron.

Thus Hydrogen atom has no Charge and it is neutral.

When an hydrogen atom loses an electron, Hydrogen ion is formed, which will contain 1 positive proton and 0 negative electron and 0 neutral neutron.

Thus Hydrogen ion has a positive charge.

Hydrogen ion is also called as a proton since it has only 1 proton in it.

Hydrogen ion in water that is,

$H^++H_2O\Rightarrow H_3O^+$

$H_3O^+$ is called as Hydronium ion.

Acid loses H+ (proton) to form conjugate Base

Base gains H+ (proton) to form conjugate Acid

For example

Let us consider the example given in the question

$CO_2+2H_2 O>H_3 O^+ +HCO_3^-$ can be written as (removed 1 $H_2 O$ from both the sides )

$CO_2+H_2 O>H^++HCO_3^-$ or

$CO_2+H_2 O > H_2 CO_3$ reversing the equation

$H_2 CO_3+H_2 O>H_3 O^+ +HCO_3^-$

$H_2 CO_3$ is the acid which donates $H^+$ to form $HCO_3^-$

$H_2 O$ is the base which gains $H^+$ to form $H_3 O^+$

$HCO_3^-$ is the conjugate base and $H_3 O^+$ is the conjugate acid

$CO_2$ is the acid

$H_2 O$ is the base

$H_3 O^+$ is the conjugate acid and

$HCO_3^-$ is the conjugate base

(Answer)

5 0

3 years ago

Which of the following elements has the largest atomic radius?

Pachacha [2.7K]

Answer:

nitrogen

Explanation:

as the group number increases, the atomic radius decreases

3 0

3 years ago