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3 years ago

The outer planets—Jupiter, Saturn, Uranus, and Neptune—are made up of which gases?

2 answers:

5 0

The outer planets—Jupiter, Saturn, Uranus, and Neptune—are made up of mainly hydrogen, helium and nitrogen.

Jupiter and Saturn are primarily made up of hydrogen and helium. However, while Uranus and Neptune are primarily composed of hydrogen and helium also, they consist of more ices and methane than Jupiter and Saturn.

tresset_1 [31]3 years ago

3 0

Hydrogen and helium is your answer hope it helps:)

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Which of the following conditions would lead to a small population size? a. a low birth to death ratio b. a high birth to death

Vinil7 [7]

Answer:

Choice A.

A low birth to death ratio

Explanation:

A low birth to death ratio means that people are dying faster than they are being born. This leads to a decreasing population size.

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2 years ago

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Svetradugi [14.3K]

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3 years ago

Give the nuclear symbol for the isotope of silicon for which a=29? Enter the nuclear symbol for the isotope (e.G., 42he).

quester [9]

The mass number is the summation of number of proton and neutron present in a nucleus of an atom. For the neutral atom the number of positive charge (number of proton) must be equal to the number of electrons. The number of electrons present in an atom is the atomic number of the atom. The standard way to express the mass number (a) and atomic number (m) of a atom (say X) is $x^{a}_{m}$ . Now for silicon number of electron or atomic number is 14. And the mass number (a) given 29. Thus the expression nucleus of silicon will be $Si^{29}_{14}$

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3 years ago

What volume is occupied by 0.104 mol of helium gas at a pressure of 0.91 atm and a temperature of 314 K ?

Aleksandr-060686 [28]

Answer:

The volume will be "2.95 L".

Explanation:

Given:

n = 0.104

p = 0.91 atm

T = 314 K

Now,

The Volume (V) will be:

= $\frac{nRT}{P}$

By putting the values, we get

= $\frac{0.104\times 0.0821\times 314}{0.91}$

= $\frac{2.6810}{0.91}$

= $2.95 \ L$

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3 years ago

What is one example of closed economy?

frez [133]

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3 years ago

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