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2 years ago

HELP ME ASAP WITH THIS PLS!!! IM SO CONFUSED

Chemistry

2 answers:

White raven [17]2 years ago

6 0

The answer would be B. If it wasn’t a pure substance the liquid would separate into its components. Like if you put oil and water in a container and shake it up. After some time passes the oil will separate and “float” on top of the water

Ivenika [448]2 years ago

3 0

An Anne jajaja auaiajs jajaja Aisha a jajaja Janak

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Electron transfer is the term for this process. The resulting anion and cation are attracted by Coulombic forces and an ionic co

Nitella [24]

<h2>The compound formed is NaCl and $CaCl_{2}$ </h2>

Explanation:

PART 1:

Atomic number of sodium is 11.
Sodium(Na, Z = 11, Group 1A) will lose 1 electron to become $Na^{1+}$ which is isoelectronic to Neon (Ne ,Z = 10).
The symbol for the sodium ion is $Na^{+}$ .
Chlorine atom ( $Cl$ , Z = 17, Group 7A or 17) gains 1 elecron to be isoelectronic to neon.
The symbol for the compound formed is NaCl.
PART 2:
Atomic number of calcium is 20
Calcium(Ca, Z = 20 ,Group 2A) will lose two electrons to become $Ca^{2+}$ which is isoelectronic to argon.
The symbol for the ion is $Ca^{2+}.$
Two chlorine atoms (Cl, Z = 17, Group 7A or 17) each gains one electron to be isoelectronic to argon(Z = 18)
The symbol for the compound formed is $CaCl_{2}$ .

8 0

3 years ago

PLSSSSS ANSWERRRR?????

vredina [299]

Answer:steeper

Explanation:if it was me thats what i would pick

7 0

2 years ago

Please help!!! <br><br> Tysm!! Xxxx

KiRa [710]

1) The amount of PbS produced will be 16.27 grams

2: The amount of Fe produced will be 118.72 grams.

<h3>Stoichiometric problems</h3>

1) The equation is balanced. The mole ratio of lead (II) acetate to the PbS is 1:1.

Mole of 22.11 lead acetate = 22.11/ 325.29 = 0.06797 moles

Equivalent mole of PbS = 0.06797 moles

Mass of PbS = 0.06797 x 239.3 = 16.27 grams

2) from the equation, the mole ratio of Al to Fe is 1:1.

Mole of 57.2 g Al = 57.2/26.98 = 2.12 moles

Equivalent mole of Fe = 2.12 moles

Mass of Fe = 2.12 x 56 = 118.72 grams.

More on stoichiometric problems can be found here: brainly.com/question/14465605

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2 years ago

What kingdom would an organism be in if it was unicellular and contained no nucleus

Ksivusya [100]

Kingdom Monera, organisms in this Kingdom are prokaryotes, they don't have a nuclear envelope, thus they have a nucleoid.

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3 years ago

Choose one branch of chemistry and give the impostance of it

igor_vitrenko [27]

Answer:

it is important is that it gives you a framework to work together. It provides you with a platform to take collective efforts towards improving social conditions. Most importantly, a society serves as a strong support system in life.

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2 years ago