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2 years ago

Which pattern in electronegativity do elements in the periodic table display?

Chemistry

1 answer:

jeka57 [31]2 years ago

8 0

Answer:

Electronegativity increases from left to right within a row of the periodic table

Explanation:

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Which is the state of matter shown in this figure ?

Veronika [31]

Answer:

Solid

Explanation:

The particles are densely packed and in a defined shape, therefore they would be defined as a solid.

5 0

2 years ago

Read 2 more answers

1) List the number of protons, neutrons, and electrons in Carbon-13.

ser-zykov [4K]

1) Carbon-13:
Proton-6 Neutron-7 Electron-6

2)Atomic mass of element X:
(55*10+56*20+57*70)/100=56.6

4 0

3 years ago

2. 27.8 mL of an unknown were added to a 50.0-mL flask that weighs 464.7 g. The total mass of the flask and the liquid is 552.4

agasfer [191]

Answer:

$d=4.24x10^{-4}\frac{lb}{in^3}$

Explanation:

Hello there!

In this case, according to the given information, it turns out firstly necessary for us to set the equation for the calculation of density and mass divided by volume:

$d=\frac{m}{V}$

Thus, we can find the mass of the unknown by subtracting the total mass of the liquid to the mass of the flask and the liquid:

$m=552.4g-464.7g=87.7g$

So that we are now able to calculate the density in g/mL first:

$d=\frac{87.7g}{27.8mL}=3.15g/mL$

Now, we proceed to the conversion to lb/in³ by using the following setup:

$d=3.15\frac{g}{mL}*\frac{1lb}{453.6g}*\frac{1in^3}{16.3871mL}\\\\d=4.24x10^{-4}\frac{lb}{in^3}$

Regards!

6 0

2 years ago

when you draw a bow across a violin string which kind of wave is created in the air surrounding the string

Lilit [14]

Answer:

When the string on a violin vibrates, waves move in both directions along the string, interfering with each other. These waves are standing waves.

Explanation:

What are Standing Waves?

The Standing Waves are waves generated due to the vibrational frequency that produces reflected waves capable of interfering with the incident waves.

8 0

1 year ago

How does carbon dioxide behave differently (its properties) as a gas compared with as a solid?

ankoles [38]

It is effected by diffusion (the power of smell and wind spread) but a solid is not.

4 0

2 years ago