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adoni [48]
3 years ago
13

Find the density of a sample with a mass of 2.56 g and a volume of

Chemistry
1 answer:
Ksju [112]3 years ago
6 0

Answer:

<h3>The answer is 0.79 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 2.56 g

volume = 3.25 mL

We have

density =  \frac{2.56}{3.25}  \\  = 0.78769230...

We have the final answer as

<h3>0.79 g/mL</h3>

Hope this helps you

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If a train travels from San Antonio to El Paso at a speed of 90 mph, how far will it
Minchanka [31]

Answer:it have traveled a total of 315 miles

Explanation: 90 times three because 90 mph times 3 hours=270miles+ the 45 miles from the 30 min times 90 mph=45+ 270=315.

4 0
3 years ago
1. Describe how SHAPE can change during a collision. Be specific with your evidence and add detail to your answer.
a_sh-v [17]

Answer:

Hey

of course, the damage of a collision depends upon how fast to objects are moving at each other and how strong they are. If you have two tanks moving at each other 2 miles per hour it will be very little damage and the ->shape<- will not change much, maybe a dint or two. But if two balloons filled with water are moving at each other 5000 mph they will completely evoporate in a burst of light, and their ->shape<- will change very much. This is how shape and motion are related.

Hope it helped

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4 0
3 years ago
Given the equation representing a reversible reaction:
tester [92]

Answer:

- Acetic acid (CH₃COOH) and hydronium ion (H₃O⁺)

Explanation:

Hello,

In this case, based on the acid-base theory which states that acids are known as H⁺ donors, if we consider the direct reaction:

CH_3COOH(aq) + H_2O \rightarrow CH_3COO^-(aq) + H_3O^+(aq)

It is clear that the acetic acid is the first H⁺ donor as it losses one H⁺ to turn into the acetate ion. Moreover, if we consider the inverse reaction:

CH_3COO^-(aq) + H_3O^+(aq)\rightarrow CH_3COOH(aq) + H_2O

It is also clear that the hydronium ion is the second H⁺ donor as it losses one H⁺ to turn into water.

Best regards.

5 0
3 years ago
In a given population, which members are most likely to survive and produce offspring?
Aneli [31]

Answer:

Those individuals with advantageous traits are more likely to survive and reproduce. The survivors pass down these advantageous traits to their offspring.

Explanation:

8 0
2 years ago
A molecule that forms when atoms of the same element bond together is called a(n)________
Mice21 [21]

Answer: element.


Justification:


1) A molecule is the union of two or more atoms.


2) When two or more atoms of different elements bond together, the molecule formed is a compound.


For example: one atoms of hydrogen and one atom of chlorine form the molecule HCl, which is a compound (hydrogen chloride).


3) When the molecules is formed by two atoms of the same element, it is not called a compound, but element. Some examples of this are the diatomic gases:


H₂: hydrogen


Cl₂: chlorine


Br₂: bromine


O₂: oxygen


S₂: sulfur


N₂: nitrogen.

3 0
3 years ago
Read 2 more answers
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