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3 years ago

What does it look like when asteroids collide?

Chemistry

2 answers:

Lapatulllka [165]3 years ago

4 0

Pretty sure it’s B not 100% tho

balu736 [363]3 years ago

3 0

Answer:

it depends on their size and how close they are to earth but I think A. an explosion

Explanation:

When asteroids collide, the resultant fragments are ejected with velocities that are small compared to the orbital velocity of the original asteroid which would probably be a pretty cool sight to see

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Explain the relationships between facts and data.

crimeas [40]

Answer:

Data is a raw and unorganized fact that required to be processed to make it meaningful. ... Generally, data comprises facts, observations, perceptions numbers, characters, symbols, images, etc. Data is always interpreted, by a human or machine, to derive meaning. So, the data is meaningless.

Explanation:

6 0

3 years ago

PLEASE HELP!! WILL MARK BRAINLIEST

Andrew [12]

Answer:

The answer to your question is below

Explanation:

Trial 1 Trial 2

mass of Mg 0.255 g 0.353 g

mass of MgO 0.418 g 0.576 g

Chemical reaction

2Mg(s) + O₂(g) ⇒ 2MgO(s)

Question 1.

Atomic mass of Mg = 24.31 x 2 = 48.62 g

Molecular mass of MgO = 2(24.31 + 16) = 80.62 g

Trial 1

48.62 g of Mg ----------------- 80.62 g of MgO

0.255 g ---------------- x

x = (0.255 x 80.62)/48.62

x = 0.422 g of MgO

Trial 2 48.62 g of Mg ----------------- 80.62 g of MgO

0.353 g ---------------- x

x = (0.353 x 80.62)/48.62

x = 0.585 g of MgO

Question 2

Trial 1

Percent yield = 0.418/0.422 x 100 = 99%

Trial 2

Percent yield = 0.576/0.585 x 100 = 98.5%

Question 3

Average = (99 + 98.5)/2

= 98.75%

3 0

3 years ago

.The vapor pressure of a volatile liquid can be determined by slowly bubbling a known volume of gas through it at a known temper

Elis [28]

Explanation:

It is given that the initial mass of benznene is 7.9286 g

Mass of benzene left = 5.9987 g

So, mass of benzene with which gas get saturated will be calculated as follows.

= 7.9286 g - 5.9987 g = 1.9299 g

Therefore, moles of benzene with which gas get saturated = $\frac{mass}{ molar mass}$

= $\frac{1.9299 g}{78.112 g/mol}$

= 0.0247 moles

Temperature = $27.3^{o}C$ = 27.3 + 273.15 = 300.45 K

Volume = 5.01 L

So, according to ideal gas equation PV = nRT

Putting the given values into the ideal gas equation as follows.

PV = nRT

$P \times 5.01 L$ = $0.0247 mol \times 62.36 torr-liter/mol K \times 300.45 K$

P = $\frac{462.781 torr-liter}{5.01 L}$

= 92.371 torr

Hence, we can conclude that vapor pressure of benzene is 92.371 torr.

8 0

3 years ago

Choose a generic equation showing how a weak base ionizes water.

FinnZ [79.3K]

Hi!

The generic equation showing how a weak base ionizes water is the following:

B(aq) + H₂O(l) ⇄ BH⁺(aq) + OH⁻(aq)

A base is described as weak when its dissociation is difficult and isn't complete. Weak Bases are chemical compounds that accept protons from water, to form the conjugate acid and the OH⁻ ion. The pH of the solution of a weak base is higher than 7. Some weak bases include ammonia (NH₃), Aluminum Hydroxide (Al(OH)₃) and Sodium Acetate (CH₃COONa).

Have a nice day!

4 0

3 years ago

Do all waves need a material to travel through? HELPPPP

Natasha2012 [34]

No.
Electromagnetic waves can travel without a medium.

hope this helps and have a great day :)

7 0

3 years ago