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irina [24]
3 years ago
5

Which statement describes streak?

Chemistry
2 answers:
Oliga [24]3 years ago
5 0

Answer:

Streak is tested by scraping a mineral across plate

Explanation: Hope this helps :)

miss Akunina [59]3 years ago
3 0
Stream is tested by scraping a mineral across plate
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How many joules of energy are made by the loss of 100kg of mass using the formula E=mc2? please help!!!
asambeis [7]

Answer:

E = 3 × 10¹⁰ J

Explanation:

Mass, m = 100 kg

We need to find energy made by the loss of 100 kg of mass. The formula between the mass and energy is given by :

E = mc²

Where c is speed of light

Putting all the values, we get :

E = 100 kg × (3×10⁸ m/s)²

= 3 × 10¹⁰ J

So, the required energy is 3 × 10¹⁰ J.

6 0
3 years ago
The ionization energy of chlorine is lower than the ionization energy for
photoshop1234 [79]

Answer: Fluorine.

Explanation:

6 0
3 years ago
n-Butane (C4H10) is burned with stoichiometric amount of oxygen. Determine the mole fraction of carbon dioxide and water in the
Fudgin [204]

Answer:

See details below

Explanation:

The balanced reaction equation is given below:

2C_{4} H_{10} + 13O_{2} → 8CO_{2} + 10H_{2} O

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Mole ratio of C4H10 to CO2 is 2:8 = 1:4

1 mole of n-butane - 38.12 g

4 moles - ?

= 152.48g fuel consumed.

8 0
3 years ago
How many moles of H2SO4 are needed to prepare 200 mL of a 1.0 M solution?
jok3333 [9.3K]
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4 0
2 years ago
What is plasma in chemistry​
faltersainse [42]

Explanation:

Plasma is an ionized gas, a distinct fourth state of matter. “Ionized” means that at least one electron is not bound to an atom or molecule, converting the atoms or molecules into positively charged ions.but plasma is present in human body too in a liquid form.

hope this helps you

have a nice day

8 0
2 years ago
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