The chemical symbol for sulfuric acid is H2SO4. How many atoms are contained in each molecule of sulfuric acid?

Answers

Answer 1

Answer: You know from looking at the molecular formula that one molecule of H2SO4 contains 2 atoms of hydrogen, 1 atom of sulfur and 4 atoms of oxygen.

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If a car can go from 0.0 to 60.0 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50.0 mi/hr?
A graduated cylinder has 20 ml (cm3) of water placed in it. An irregularly shaped rock is then dropped in the graduated cylinder and the volume of the rock and water in the cylinder now reads 30 ml (cm3). The mass of the rock dropped into the graduated cylinder is 23 grams.a.) Find the volume of the rock dropped into the graduated cylinder. b.) Find the density of the rock dropped into the graduated cylinder.
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You're driving down the highway late one night at 19 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s , and the maximum deceleration of your car is 10 m/s² . How much distance is between you and the deer when you come to a stop? What formulas do you use?

Answers

Answer:

x= x0 + v0t+ 1/2at^2

Explanation:

If X = 5 and Y = 3, what does Z equal?
2X + 2Z = 10Y

Answers

Z equals 10, when substitute X = 5 and Y = 3 in 2X + 2Z = 10Y.

What are Arithmetic operations?

Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.

* Multiplication operation: Multiplies values on either side of the operator

For example 4*2 = 8

/ Division operation: Divides left-hand operand by right-hand operand

For example 4/2 = 2

Given that equation as:

⇒ 2X + 2Z = 10Y

If X = 5 and Y = 3,

Substitute the values of X = 5 and Y = 3,

⇒ 2(5) + 2 (Z) = 10(3)

Apply the multiplication operation

⇒ 10 + 2Z= 30

⇒ 2Z = 20

⇒ Z = 20/2

Apply the division operation

⇒ Z = 10

Hence, Z equals 10, when Substitute X = 5 and Y = 3 in 2X + 2Z = 10Y

Learn more about Arithmetic operations here:

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2(5) + 2 (z) = 10{3}
10 + 2z= 30
2z=20
z=10

What is an example of Deceleration?

Answers

That's a word often used to mean "slowing down". An example is what happens
when the brake is applied in a moving car.

But 'deceleration' is a very unofficial, unscientific word. If the forward speed
is decreasing, then a much more useful concept is "negative acceleration".

When the body starts moving with a slower speed than the initial speed and it slows down continuously, the this is called deceleration. Examples of deceleration -

When a ball is thrown upwards, its speed goes on decreasing as its height increases.
When a car applies brakes.

A ski jumper competing for an Olympic gold medal wants to jump a horizontal distance of 135 meters. Thetakeoff point of the ski jump is at a height of 25 meters. With what horizontal speed must he leave the jump?
a. What do you know?
b. What do you need to solve for?
c. What equation(s) will you use?
d. What is the solution to this problem?

Answers

A. We know that the height (h) = 25 m, and the distance (x) = 135 m.

B. We need to find the time flight first (t), then we can find easily the horizontal velocity ( $v_(x)$ . )

C. Because this is a projectile motions, so horizontal velocity is constant, but the vertical velocity is change because of the gravitational acceleration.
So we can use : $h = (1)/(2) g t^(2)$ ,

Note : Time that will be exist is a time from a land to the takeoff point, that can be called as the time flight.
Then we use, $x = v_(x) t$ , to find the horizontal velocity.

D. We know that :
$h = (1)/(2) g t^(2)$ , so by insert the numbers, and assune that the (g = 10 m/ $s^(2)$ ), we get that ( t = $√(5)$ . )
After that by using $x = v_(x) t$ , we can get that $v_(x) = 27 √(5)$

The quantum mechanical model of the atom ____. a. defines the exact path of an electron around the nucleus b. was proposed by Niels Bohr c. involves finding an electron somewhere in a specific orbital d. has many analogies in the visible world

Answers

Answer:

Quantum mechanical model = involves finding an electron somewhere in a specific orbital.

Explanation:

The quantum mechanical model of an atom involves finding an electron somewhere in a specific orbital. This method is completely based on mathematical calculations. It defines the probability of finding an electron rather than its reality.

These are designated by some letters like s, p, d, f...... and the corresponding energy levels are 1st, 2nd, 3rd and so on.....

So, the correct option is (c) "involves finding an electron somewhere in a specific orbital".

c. involves finding an electron somewhere in a specific orbital

If there is no difference in the dry and wet bulb, you can assume that the relative humidity is __________.a. 100%
b. 75%
c. 50%
d. 0% E. It cannot be determined.

Answers

If there is no difference in the dry and wet bulb temperatures,
you can assume that the relative humidity is 100% . . . since
no water was able to evaporate from the wet bulb.

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Value that is measured by the slope of a position-time graph

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