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3 years ago

According to Pascal's principle, how does pressure from a hand squeezing a ketchup bottle move throughout the ketchup?

Chemistry

2 answers:

Dennis_Churaev [7]3 years ago

4 0

Answer:

The pressure moves in a downward direction.

Pepsi [2]3 years ago

3 0

- According to Pascal’s principle, for a certain fluid in a totally enclosed system, a change in pressure at a given point in the fluid is transferred to all points in the fluid, as well as to the enclosing walls.

- This is illustrated by the fact that the pressure inside an enclosed system is the same according to the relation [ pressure = force/area ]. Therefore, the change in pressure resulting from squeezing a ketchup bottle will be transferred equally to all parts of that bottle as well as its internal content.

- That’s how hydraulic machines, such as garbage trucks and hydraulic lifts function..

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What is the formula unit for a compound made from Fe3+ and oxygen?

mr Goodwill [35]

Fe2O3
Hope this helped

8 0

3 years ago

Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming of natural

hoa [83]

<u>Answer:</u> The net chemical equation is given below.

<u>Explanation:</u>

To determine the net chemical equation, we will look into the intermediate steps:

<u>Step 1:</u> Formation of ammonia from hydrogen and nitrogen gas.

$N_2(g)+3H_2(g)\rightarrow 2NH_3(g)$ ......(1)

<u>Step 2:</u> Formation of nitric acid from ammonia and oxygen gas.

$NH_3(g)+2O_2(g)\rightarrow HNO_3(g)+H_2O(g)$ .....(2)

The net chemical equation for the formation of nitric acid from hydrogen gas, nitrogen gas and oxygen gas follows by adding both the equations, we get:

$N_2(g)+2O_2(g)+3H_2(g)\rightarrow HNO_3(g)+H_2O(g)+NH_3(g)$

By Stoichiometry of the reaction:

1 mole of hydrogen gas reacts with 2 moles of oxygen gas and 3 moles of hydrogen gas to produce 1 mole of nitric acid, 1 mole of water and 1 mole of ammonia.

Hence, the net chemical equation is given below.

4 0

3 years ago

suppose that recording station N located 200 km north of the epicenter of an earthquake, and recording station S is located 100

andrezito [222]

Answer:

c.The value of T at Recording Station N would be greater than T at Recording Station S.

Explanation:

We can deduce from the information provided that the value of T at recording station N would be greater than T at recording station S.

This problem relates distance with time.

Speed = $\frac{disance}{time}$

Distance = Speed x time

Just like any other physical quantity, speed of a substance is directly related to time.
The larger the time taken the farther the distance it will cover assuming the velocity is constant.
Earthquake waves for example moves at constant speed with a unique velocity in earth materials.
The farther the distance, the more time it will take to reach the seismic recording station.
Since N is a distance of 200km from the epicenter, it will take a greater time and have a higher reading of T to reach the station.

6 0

3 years ago

A sample of radioactive waste has a half-live of 40 years and an activity level of 4 curies. After how many years will the activ

Westkost [7]

After 160 years, the activity level of the sample will be 0.5 curies.

Half life of any radioactive waste is the half decay of that product.

The formula is $\dfrac{\lambda }{\lambda_1} = 2^\dfrac{a}{b}$

Where, λ is 4 cruies

λ1 is 0.5 cruies

b = 40 years

Putting the values in the equation

$\dfrac{4}{0.5} = 2^\dfrac{a}{40}\\\\\\\dfrac{a}{40} = 4\\ = 160 years$

Thus, the correct option is 160 years.

Learn more about half-life

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8 0

2 years ago

Put 30,000,000,000 into scientific notation

Neko [114]

Your number in decimal form is
3,000,000
.
To get to standard scientific notation, we move the decimal point so there is only one non-zero digit in front of the decimal point.
So,
3,000,000
becomes
3.000,000
.
The trailing zeroes are not significant, so
3.000,000
becomes
3
.
We moved the decimal point six places, so the exponent is
6
.
We moved the decimal point to the left, so the exponent is positive.
The exponential part is therefore
10
6
.
3,000,000=3 X10^6

8 0

3 years ago

Read 2 more answers