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2 years ago

The chemical reaction Na+ + Cl- NaCl is best described as a(n) _____.

Chemistry

2 answers:

svlad2 [7]2 years ago

5 0

Na + Cl = NaCl

answer : synthesis reaction .

hope this helps!

labwork [276]2 years ago

5 0

The correct answer is:

synthesis reaction

Explanation:

A combination reaction or direct incorporation reaction is a type of chemical reaction in which two or more simple materials combine to form a more intricate product. The reactants may be elements or compounds. The product is always an aggregate.

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Are all the molecules in the picture the same?

Dvinal [7]

Answer:

There is no picture.

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2 years ago

Read 2 more answers

A piston containing 0.120moles of methane gas, CH4, has a volume of 2.12liters. If methane is added until the volume is increase

earnstyle [38]

Answer:

2.83 g

Explanation:

At constant temperature and pressure, Using Avogadro's law

$\frac {V_1}{n_1}=\frac {V_2}{n_2}$

Given ,

V₁ = 2.12 L

V₂ = 3.12 L

n₁ = 0.120 moles

n₂ = ?

Using above equation as:

$\frac{2.12}{0.120}=\frac{3.12}{n_2}$

$2.12n_2=0.12\cdot \:3.12$

$2.12n_2=0.3744$

$n_2=\frac{0.3744}{2.12}$

$n_2=0.17660$

n₂ = 0.17660 moles

Molar mass of methane gas = 16.05 g/mol

So, Mass = Moles*Molar mass = 0.17660 * 16.05 g = 2.83 g

2.83 g are in the piston.

8 0

2 years ago

In a voltaic cell made of a Ag strip and an Al strip immersed in 1.0 M aqueous AgNO_3 and Al(NO_3)_3 solutions, respectively, wi

Tema [17]

Answer:

When the operation of the voltaic cell, which is formed of an aluminum and silver strip takes place, the atom of aluminum loses three of its electrons and the Al3+ formed moves within the solution. The Al3+ ion gets dissolved within the solution and the electrons lost in the process moves through the wire and get acquired by the ions of silver, which then get reduced to solid Ag resulting in the mass gain of silver strip.

7 0

2 years ago

what is 31/50000 If the toxic quantity is 1.5 g of ethylene glycol per 1000 g of body mass, what percentage of ethylene glycol i

Sveta_85 [38]

Answer:

$\%m=0.15\%$

Explanation:

Hello,

In this case, we are asked to compute the by mass percent representing the toxicity of ethylene glycol in the body mass. In such a way, since the by mass percent is computed with the shown below formula:

$\%m=\frac{m_{ethylene \ glycol}}{m_{ethylene \ glycol}+m_{body\ mass}}*100\%$

We can use the given masses to obtain:

$\%m=\frac{1.5g}{1.5g+1000g}*100\%\\ \\\%m=0.15\%$

Best regards.

7 0

2 years ago

Write a hypothesis for this: Hummingbirds are attracted to the color red

Margaret [11]

Answer: I believe/don't believe hummingbirds are attracted to the color red because ... (Enter your reasons)

Explanation:

Hypothesis are always different, up to you to choose believe or not believe depending on your position.

:) Hope this helped.

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2 years ago