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3 years ago

I need help with 2, 3, and 4 please help i will give the brainliest

Chemistry

1 answer:

Sphinxa [80]3 years ago

8 0

Answer:

2=2.28*10^5

3=3.98*10^3

4=5.76*10^3

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Explain the steps for naming an oxy-acid (refernce pg. 252)

nata0808 [166]

Answer:

The first element is always named first, using entire element name.

Second element is named using its root and adding the suffix -ide.

Prefixes are used to indicate the number of atoms of each element that are present in the compound.

Explanation:

8 0

3 years ago

A sample of chlorine gas occupies a volume of 707 ml at 2.90 atm. What is the new pressure in torr if the volume is compressed t

dolphi86 [110]

Answer:

The new pressure is 3850 torr.

Explanation:

The relation between volume and pressure is inverse as per Boyle's law. Its mathematical form is given by :

$P_1V_1=P_2V_2$

Here,

$P_1=2.9\ atm$

$V_1=707\ mL$

$V_2=0.533\ L$

Let $P_2$ is the new pressure. So using Boyle's law we get :

$P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{2.9\times 707}{0.533}\\\\P_2=3846.71\ \text{torr}$

$P_2=3850\ \text{torr}$

So, the new pressure is 3850 torr.

3 0

3 years ago

Solar energy involves electromagnetic waves and can be referred to as ________________ energy

AleksandrR [38]

Answer:

it can be referred to as heat energy

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2 years ago

Refer to the following elements to answer the questions below. 126C168O11H147N3216S3115P, where the upper index is atomic mass a

hjlf

<u>Answer:</u> The number of valence electrons in sulfur atom are 6.

<u>Explanation:</u>

The isotopic representation of sulfur atom is $_{16}^{32}\textrm{S}$

Valence electrons are defined as the electrons that are present in the outer most orbital of an atom. Electrons present in the orbitals having highest principle quantum number are termed as valence electrons.

Sulfur is the 16th element of the periodic table having 16 electrons.

Electronic configuration of sulfur atom is $1s^22s^22p^63s^23p^4$

The number of valence electrons present in sulfur atom are 2 + 4 = 6

Hence, the number of valence electrons in sulfur atom are 6.

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3 years ago

Fire a single electron towards the hydrogen atom. Describe what happens in a step by step fashion. [N.B. - It may be helpful to

scZoUnD [109]

Answer:

The electrons will be added by the hydrogen.

Explanation:

If we fire a single electron towards the hydrogen atom, the hydrogen atoms added the electron to its shell by applying force of attraction and becomes stable as well as non reactive in nature because the hydrogen attains the electronic configuration of helium which is a noble gas and have completed its outermost shell. The proton that is present in the nucleus attracts this electron and compel it to add in the electron.

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2 years ago