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3 years ago

What is the function of an Erlenmeyer flask?

1 answer:

6 0

An Erlenmeyer flask is laboratory flask that has a conical shape and flat bottom with a tapered mouth. The Erlenmeyer flask is used for pouring, mixing and storing of chemicals in the laboratory. It was created by Emil Erlenmeyer in the 1860s.

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What is the minimum number of liters of co2 measured at stp needed to produce 32 grams of oxygen?

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4 years ago

A fault is a break in the rocks of the Earth's crust. A fault is formed due to the movement of rock on either side of the fault.

SVEN [57.7K]

Answer:

Ola tudo bem??

Meu nome é Ana Kesia, e o seu?

Foi mal, Nn consegui responder sua pergunta!

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3 years ago

A student is examining an object in science class. It is pale yellow,brittle solid, with no shine. The sample is most likely a—

Alex Ar [27]

Answer: non metal

Explanation:

Nonmetals are dull, possess high ionization energies and electronegatives and are typically poor electricity conductors as they're insulators.

Non metals are also brittle and possess low melting point. Therefore, with the explanation, the sample is most likely a non metal.

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3 years ago

Use logarithmic properties to solve the following equation log3 5x+ log3 7= 4 leave your answer in fraction form please

Salsk061 [2.6K]

Explanation:

Adding logs of same base is equivalent to multiplying the arguments. You get:

$log_{3}(35x) = 4$

Use the definition of the log to turn this into an exponential function:

${3}^{4} = 35x$

$81 = 35x$

$x = \frac{81}{35}$

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2 years ago

The reactant side of a balanced chemical equation is shown below.

Tresset [83]

Answer: There are 8 hydrogen atoms on the product side in the reaction.

Explanation:

Every balanced chemical equation follows law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This law also states that total number of individual atoms on the reactant side must be equal to the total number of individual atoms on the product side.

For the given reaction, the balance chemical equation follows:

$PCl_5+4H_2O\rightarrow H_3PO_4+5HCl$

On reactant side:

Number of Phosphorus atoms = 1

Number of Chlorine atoms = 5

Number of Hydrogen atoms = 8

Number of Oxygen atoms = 4

On Product side:

Number of Phosphorus atoms = 1

Number of Chlorine atoms = 5

Number of Hydrogen atoms = 8

Number of Oxygen atoms = 4

Hence, there are 8 hydrogen atoms on the product side in the reaction.

7 0

3 years ago