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2 years ago

Why does it take so much heat and pressure to create helium and other elements?

Chemistry

1 answer:

ehidna [41]2 years ago

4 0

Answer:

To break down the nucleus of an atom

Explanation:

Remember to change from one element to another, is necessary to add protons, neutrons and electrons,in most of the cases.

The take an electron from an atom you need certain energy, but they are in the outside part of the atom so is not as much energy as the one is necessary to take one neutron or proton from the inside part of an atom.

In this way, is a must to have a combination of pressure and heat to destabilize an atom and take some of this subatomic particles.

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Some common substances used in the laboratory are listed in the table. the chemical formulas of the substances are also listed b

Helga [31]

Its 5 i think

but dont take my word on it

7 0

3 years ago

What volume will 1.27 moles of helium gas occupy at 80.00 °C and 1.00 atm?

White raven [17]

Answer:

36.8 L

Explanation:

We'll begin by converting 80 °C to Kelvin temperature. This can be obtained as follow:

T(K) = T(°C) + 273

T(°C) = 80 °C

T(K) = 80 + 273

T(K) = 353 K

Finally, we shall determine the volume occupied by the helium gas. This can be obtained as follow:

Number of mole (n) = 1.27 moles

Temperature (T) = 353 K

Pressure (P) = 1 atm

Gas constant (R) = 0.0821 atm.L/Kmol

Volume (V) =?

PV = nRT

1 × V = 1.27 × 0.0821 × 353

V = 36.8 L

Thus, the volume occupied by the helium gas is 36.8 L

5 0

3 years ago

What is four thing the atmosphere does for us

artcher [175]

Keeps in heat, protects us from radiation, provides oxygen, and protects us from objects coming towards the earth.

4 0

3 years ago

Read 2 more answers

Matter in the ____state completely fills the volume of its container

balu736 [363]

Answer:

Gas state

Explanation:

Gas particles spread out to fill a container evenly, unlike solids and liquids.

5 0

3 years ago

Read 2 more answers

Give the number of covalent bonds that a carbon atom can form.

polet [3.4K]

Answer:

four covalent bonds

Explanation:

A carbon atom would form 4 covalent bonds.

For a covalent bond to be formed, an atom would share its valence electrons with another. In this process, each atom would require unpaired electrons for this bond to be formed. The number of available unpaired electrons would represent the number of electrons needed to complete the outer energy level of the atom.

In a carbon atom, we have no lone pair of electrons and 4 unpaired electrons. When these 4 electrons are shared with those of other atoms, they produce a complete octet which perfectly mimics the noble gases.

3 0

3 years ago