All categories

4 years ago

50 POINTS!

1 answer:

6 0

5.5/-38 / 5.5 = 1/-6.9 x 1.3 = 1.3/-8.98
unit volume/temperature x searching amount

i’d say the temperature would be -8.98 C simply - I don’t know what formula youd use for this

You might be interested in

Draw the major organic product that is expected when cyclopentanecarboxylic acid is treated with each of the following reagents:

son4ous [18]

Answer:

a. Sodium cyclopentanecarboxylate

b. No reaction

Explanation:

In this case, in the cyclopentanecarboxylic acid we have a carboxylic acid functional group. Therefore we have an "acid". The acids by definition have the ability to produce hydronium ions ( $H^+$ ).

With this in mind, for molecule a. we will have an acid-base reaction, because NaOH is a base. When we put together an acid and a base we will have as products a salt and water. In this case, the products are Sodium cyclopentanecarboxylate (the salt) and water.

For the second molecule, we have the hydronium ion ( $H^+$ ). This ion can not react with an acid. Because, the acid will produce the hydronium ion also, so a reaction between these compounds is not possible.

See figure 1

I hope it helps!

8 0

3 years ago

A body travels 10 meters during the first 5 seconds of its travel, and it travels a total of 30 meters over the first 10 seconds

Mariulka [41]

Answer:

$\large \boxed{\text{C. 4 m/s}}$

Explanation:

At 5 s the body has travelled 10 m.

Between 5 s and 10 s, the body reached 30 m.

Distance travelled = 30 m - 10 m = 20 m

Time = 10 s - 5 s = 5 s

$\text{Speed} = \dfrac{\text{ distance}}{\text{time}} = \dfrac{\text{20 m}}{\text{5 s}} = \textbf{4 m/s}\\\\\text{The average speed between 5 s and 10 s is $\large \boxed{\textbf{4 m/s}}$}$

4 0

4 years ago

How are physical and chemical changes different?

astra-53 [7]

Physical changes happen when you do/mix something that can be reversed. Best example is ripping a paper, you can just tape it back together so it is just an observable thing that changes, which is a physical change. Chemical changes happen when you mix things and they make a new substance and can’t be reversed. The best example of this is the Statue of Liberty, which changed in color due to the chemical change between the oxygen and copper, which created a new substance (rust) which made it green instead of copper.
Sorry for the long answer but hope this helps!

5 0

4 years ago

A student takes a measured volume of 3.00 M HCl to prepare a 50.0 mL sample of 1.80 M HCl. What volume of 3.00 M HCl did the stu

vlabodo [156]

Answer is 30.0mL

according to the question dilution is performed by the student which can be calculated with the help of :

$M_{1}V_{1}=M_{2}V_{2}$ EQUATION (1)

Here, we have:

$M_{1}$ = 3M

$V_{1}$ = y mL

$M_{2}$ = 1.80 M

$V_{2}$ = 50.0mL

putting the known values in equation (1) which will give us value of $V_{1}$

3.00× y =1.80 ×50.0

y= 30.0mL

3 0

4 years ago

Read 2 more answers

HELP Can someone do this?

laiz [17]

The first law appears to be at conflict with what we typically encounter. According to Newton's first law, any object at rest that is not affected by external forces will stay at rest, and any object in motion that is not affected by external forces will continue moving in a straight path at a constant speed.

The first law of motion in physics states that unless an external force acts upon a body, it will continue to move at its current uniform speed and remain at rest. A ball will exert force on the ground or a wall when it strikes them, respectively. The ground or a wall exerts a reaction force, which causes the ball to bounce back.

Learn more about force here-

brainly.com/question/13191643

#SPJ9

6 0

1 year ago