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zzz [600]
3 years ago
10

Could a mixture be made up of only elements ?

Physics
1 answer:
USPshnik [31]3 years ago
3 0

Absolutely !  You're breathing a mixture like that right now.

Earth's atmosphere ... except for the small amounts of carbon dioxide
and water vapor ... is a mixture of gases in their elemental form.  A few
of them include nitrogen, oxygen, neon, argon, krypton.  All elements.

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4 0
3 years ago
Calculate the change in length of a Pyrex glass dish (Coefficient of linear expansion for Pyrex is 3 * 10-6 / oC) that is 0.25 m
DIA [1.3K]

9*10^{-5} m

Explanation:

Step 1:

We are given the initial length of the Pyrex glass dish at a particular temperature and need to calculate the change in the length when the temperature changes by 120° C. The coefficient of linear expansion of Pyrex is provided.

Step 2:

Change in length = Coefficient of linear expansion * Change in temperature * Initial length

Step 3:

Coefficient of linear expansion = 3*10^{-6} /°C

Change in temperature = 120°C = 120 K

Initial length = 0.25 m

Step 4:

Change in length = 3*10^{-6} * 120 * 0.25 = 9*10^{-5} m

8 0
3 years ago
How do protons, neutrons and electrons determine the properties of the atoms??? HELP! NEED SCIENCE HELP FAST!!!!
Roman55 [17]
The number of protons determines the element. Many elements also have many isotopes. Such as carbon-14 Carbon-12 and carbon-10.
4 0
3 years ago
The brakes exert a 1,951 N force on a car weighing 18,985 N and moving at 12 m/s. The car finally stops. How long (in seconds) d
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Explanation:

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3 years ago
1. Write the mass number for an atom with atomic number 26 and 32 neutrons.
Strike441 [17]
1. Mass number = Protons + Neutrons
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2. Let the element be Xy
58Xy26

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4. 88Sr38

5. Let the atom be Ab
72Ab32
5 0
3 years ago
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