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earnstyle [38]
2 years ago
10

1. Write formulas for the following compounds:

Chemistry
2 answers:
zhuklara [117]2 years ago
7 0

Answer:

See below.

Explanation:

1) a.

MgCl₂

MgBr₂

Mg(O-H)₂

MgS

b.

CaCl₂

CaBr₂

Ca(O-H)₂

CaO

Ca(C≡N)₂

CaS

2) a.

NaOH

NaC≡N

b.

NH₄C≡N

c.

BaCl₂

Ba(OH)₂

Ba(C≡N)₂

BaO

BaS

TEA [102]2 years ago
7 0

Answer:

=> The formulas are written above .

Explanation:

hope it's helpful

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In looking at the bolded atoms in the answer choices, which pair consists of molecules having the same geometry?
ICE Princess25 [194]
Correct Answer: option C:The pair which consist of molecules having the same geometry is CH2CCI2 and CH2CH2.

Reason: 
Both of the above molecules contain double bonds. They are characterized by  sp^2 hybridization. Also, they possess a trigonal planar geometry. In trigonal planar system, the molecule consist of three equally spaced sp^2 hybrid orbitals, which arranged at angle 120 degree. 

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4 years ago
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If the pressure on a 1.04 L sample of gas is doubled at constant temperature, please compute the new volume of gas: __
natulia [17]

Answer:

0.52 L.

Explanation:

Let P be the initial pressure.

From the question given above, the following data were obtained:

Initial pressure (P1) = P

Initial volume (V1) = 1.04 L

Final pressure (P2) = double the initial pressure = 2P

Final volume (V2) =?

The new volume (V2) of the gas can be obtained by using the the Boyle's law equation as shown below:

P1V1 = P2V2

P × 1.04 = 2P × V2

1.04P = 2P × V2

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V2 = 1.04P /2P

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6 0
3 years ago
A 975 L balloon contains helium. On the ground the temperature is 30 0C and the pressure is 743 torr. What will be the balloon's
Archy [21]

Answer:

V₂ = 1518L

Explanation:

-Using combined gas law:

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

<em>Where P is pressure, V is volume and T is absolute temperature of 1, initial state and 2, final state of the gas.</em>

<em />

<em>Initial states:</em>

P₁ = 743 torr

V₁ = 975L

T₁ = 30°C + 273.15K = 303.15K

P₂ = 375 mmHg = torr

V₂ = Our incognite

T₂ = -35°C + 273.15K = 238.15K

Replacing:

\frac{743torr*975L}{303.15K} =\frac{375torrV_2}{238.15K}

<h3>V₂ = 1518L</h3>
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3 years ago
A substance is composed of only one kind of Adam and can't be separated into simpler substances are converted into it another su
Zarrin [17]

Answer:

Element

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An element is substance that is composed of only one kind of atom and can not be separated into simpler substances or converted into another substance by chemical processes.

Chemical elements are found in the periodic table. Examples of chemical elements include; sodium potassium, phosphorus, hydrogen etc.

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