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3 years ago

Which of the following is NOT a qualitative observation

Chemistry

1 answer:

frozen [14]3 years ago

4 0

what is the following???

a qualitative observation is when somehthings appearance changes like form red to blue, and qualitative is when the umber of something changes.

Hope this helps

Kenny

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What type of representative particle does KClO3 have?

bogdanovich [222]

Answer:

formula units

Explanation:

$KClO_3$ is potassium chlorate. It is an ionic compound containing potassium, chlorine and oxygen. The ion in potassium chlorate are held together by the ionic bonds in the lattice structure.

A representative particle may be defined as the smallest unit for which the substance exists in its natural form. For most of the elements, atom is the representative particle. Molecule is the representative particle for diatoms and molecular compounds. But for ionic compounds such as $KClO_3$ , NaCl, etc. . the representative particle is its formula units.

6 0

3 years ago

A balloon is launched when the temperature is 15 oC and the pressure is 0.918 atm. Its volume is 11.1 L. It rises in the air unt

ivann1987 [24]

Answer:

The new volume is 7,606.96 Liter.

Explanation:

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas in the balloon = 0.918 atm

$P_2$ = final pressure of gas in the balloon = 0.0012 atm

$V_1$ = initial volume of gas in the balloon = $11.1 L$

$V_2$ = final volume of gas in the balloon = ?

$T_1$ = initial temperature of gas in the balloon = $15^oC=273+15=288K$

$T_2$ = final temperature of gas in the balloon = $-15^oC=273-15=258K$

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

$\frac{0.918 atm\times 11.1 L}{288 K}=\frac{0.0012 atm\times V_2}{258 K}$

$V_2=\frac{0.918 atm\times 11.1 L\times 258 K}{288 K\times 0.0012 atm}$

$V_2=7,606.97 L$

The new volume is 7,606.96 Liter.

5 0

3 years ago

A) Draw three structures of 3 sulfur containing acids. Minimize formal charges by expanding sulfur's octet . Include any nonbond

Sedbober [7]

You may find the structure of compounds as well the oxidation number of sulfur in each compound written with blue color. The nonbonded electrons are represented by black dots.

Explanation:

In the methyl sulfenic acid sulfur have a oxidation number of 0, because we have +1 from carbon and -1 from hydroxil group.

In the methyl sulfinic acid sulfur have a oxidation number of +2 , because we have +1 from carbon, -1 from hydroxil group and -2 from oxygen.

In the methyl sulfonic acid sulfur have a oxidation number of +4 , because we have +1 from carbon, -1 from hydroxil group, -2 from one oxygen and -2 form the other oxygen.

Learn more about:

oxidation numbers

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4 0

4 years ago

I WILL GIVE BRAINLIEST!!!!!!!!!!

oksano4ka [1.4K]

Hello.

<span>HI + NaOH --> NaI + H2O

2HClO4 + Sr(OH)2 --> Sr(ClO4)2 + 2H2O
</span>
Have a nice day

7 0

4 years ago

Water is known as a polar molecule because check all that apply. the oxygen atom has a greater attraction for electrons than the

Tju [1.3M]

<span>Water is known as a polar molecule because the oxygen atom has a greater attraction for electrons than the hydrogen atom does. Oxygen is more electronegative than that of hydrogen creating a partial charges with the hydrogen and oxygen atoms. Also, the electrons of the covalent bond are not shared equally between the hydrogen and oxygen atoms making it polar.</span>

5 0

3 years ago