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3 years ago

What type of reaction results in the formation of a salt?

1 answer:

5 0

Salt, in chemistry, substance produced by the reaction of an acid with a base. A salt consists of the positive ion (cation) of a base and the negative ion (anion) of an acid. The reaction between an acid and a base is called a neutralization reaction. Hope this helps!!!

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In higher mass stars, repeating cycles of fusion will create heavier elements in layers

love history [14]

The element is iron.

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3 years ago

A model train moves 18.3m in 122s. What is the train's average speed?

Kisachek [45]

Answer:0.15 m/sec

Explanation:

To calculate speed you use distance over speed

18.3/122= 0.15

5 0

3 years ago

A car has a distance between axles of 6.2 m and a center of mass located 2.2 m from the front axle. What is the

NARA [144]

Answer:

The correct option is C

Explanation:

From the question we are told that

The distance between axles of the car is $d_a = 6.2$

The position of the car's center of mass is $D = 2.2 \ m \ in \ front \ of \ the \ axel$

Now we can evaluate the distance of the center of mass to the rear axle as follows

$k = d_a - D$

substituting values

$k = 6.2 - 2.2$

$k = 4 \ m$

assuming the car is at equilibrium, taking moment about the center of mass

$W_{front \ axle} * D - W_{rear \ axle} * k = 0$

=> $W_{front \ axle} * D = W_{rear \ axle} * k$

=> $\frac{W_{front \ axle}}{W_{rear \ axle} } = \frac{k}{D}$

substituting values

$\frac{W_{front \ axle}}{W_{rear \ axle} } = \frac{4}{2.2}$

$\frac{W_{front \ axle}}{W_{rear \ axle} } = 1.81$ Note [ $W_{front \ axle}$ is the front axle weight and

$W_{rear \ axle}$ is the rear axle weight ]

6 0

3 years ago

The forces acting on a sailboat are 390. N south and 180. N east. If the boat (including

velikii [3]

Answer:

180^2 + 390^2 = force ^2 (Pythagoras) root of force^2 = 429.5N approx resultant force Acceleration = Force/Mass 429.5/270 = 1.5907 ms^-2 in a Southwesterly direction.

Explanation:

4 0

3 years ago

10. Which of the following is an acceleration?<br> a. 12 m/s2 down<br> b. 5 m/s up<br> c. 8N West

nadya68 [22]

Answer:

a. 12 m/s² down

Explanation:

Acceleration has units of length per time squared. Acceleration is a vector, so it also has a direction.

3 0

3 years ago