What is the chemical name of SiF4? sulfur fluoride silicon fluoride sulfur tetrafluoride silicon tetrafluoride

Answers

Answer 1

Answer:

Silicon tetrafluoride

Explanation:

The symbol Si represents the element silicon, as shown in the periodic table.

The are 4 fluorines, so the prefix for fluoride must have tetra-


Related Questions

Identify what happens to the kinetic energy (KE) and gravitational potential energy (PE) of a rock as it falls.

KE and PE both increase.
KE and PE both decrease.
KE increases and PE decreases.
KE decreases and PE increases.

Answers

Answer:

KE increases and PE decreases.

Explanation:

POTENTIAL ENERGY (PE):

The potential energy of the rock depends upon the height of the rock, as given by the following formula:

P.E = mgh

Therefore, the potential energy will be highest at the initial point due to the highest height attained by rock. As the rock falls, its height will decrease as a result its potential energy will also decrease.

KINETIC ENERGY (KE):

The kinetic energy of the rock depends upon the velocity of the rock, as given by the following formula:

[tex]K.E = \frac{1}{2}mv^2[/tex]

Therefore, the kinetic energy will be zero at the initial point due to the zero velocity of the rock. As the rock falls, its velocity will increase as a result its kinetic energy will also increase.

Hence, the correct option will be:

KE increases and PE decreases.

Acceleration occurs when an object changes its_ or _or both

Answers

Answer:

Acceleration occurs when an object changes its VELOCITY or DIRECTION or both

Explanation:

An object of mass 4.0 kg is dropped from a height of
1000 m from a helicopter. The air resistance acting
against the parachute exerts a steady upward force of 35 N. Calculate the kinetic energy of the object when it reaches the ground and hence find its velocity.

Answers

The velocity is 8.75 m/s

A 12.0 cm object is 9.0 cm from a convex mirror that has a focal length of -4.5 cm. What is the distance of the image from the mirror?

Answers

Answer: -3cm

Explanation:

Answer:

-3

Explanation:

edg

I’ll love you forever if you help me <3

Answers

It’s meee ;) answer is 1.7 (d)

How would the particles be arranged in an object that has a high density? What about in
an object that has a low density?

Answers

The particles in solids are very close together. They are tightly packed, giving solids high densities.

The particles in gases are very far apart, so gases have a very low density.

Answer:

Explanation:

The particles in solids are very close together. They are tightly packed, giving solids high densities.

The particles in gases are very far apart, so gases have a very low density.

what are newtons laws of motion?

Answers

Answer:

In classical mechanics, Newton's laws of motion are three laws that describe the relationship between the motion of an object and the forces acting on it. The first law states that an object either remains at rest or continues to move at a constant velocity, unless it is acted upon by an external force.

Explanation:

Explain you could use a battery, wire and compass to
determine whether or not the right hand rule works.

ASSAP PLEASE

Answers

Answer:

oh I'm so sorry I can't answer your question it has been a long time since I learned that. so I totally forgot how to do this. sorry!

1. What physical benefits can a person gain from playing floor hockey?​

Answers

Answer:

strengthens ur muscles

Can we have the Doppler effect with light waves? How?

Answers

Answer:

Besides sound and radio waves, the Doppler effect also affects the light emitted by other bodies in space. If a body in space is "blue shifted," its light waves are compacted and it is coming towards us. If it is "red shifted" the light waves are spread apart, and it is traveling away from us.

Explanation:

A hydraulic press consist of of two
cylinders of cross sectional areas
0.2m2 and 5m². The piston in the
smaller cylinder is pushed down
with a force of 100N through a
distance 0.2m. calculate
Links
(0)
The pressure transmitted
(ii)
The force exerted by the
piston in the larger cylinder. ​

Answers

Answer:

Explanation:

i )

area of small piston = 0.2 m²

Force = 100 N

pressure created on small piston

= 100 / .2 = 500 N/m²

According to Pascal's law , this pressure will be transmitted to larger cylinder .

area of larger cylinder = 5 m²

ii )

pressure = force / area

force in the large cylinder = pressure x area of large cylinder

= 500 x 5

= 2500 N .

Why the temperature of a resistor increase when a current pass through it

Answers

Answer:

So, when an electrical charge passes through a resistor, some of that electrical energy is transferred into heat, increasing the temperature. This extra energy causes the particles in the resistor to vibrate more. With these particles moving more, it is more difficult to for the electrons to move through the resistor.

Explain why you can see a phone underneath a glass bell jar, but you cannot hear
it when it is ringing?

Answers

Answer: Any sound cannot be heard through a glass bell jar because a vacuum is created in the jar and sound cannot travel without a medium like gases, solids or liquids

Answer:

the glass hids it and the vibration of the phone is the way you hear it

What is the rate at which velocity changes called?

Answers

It’s called (Acceleration) is a measure of how quickly the velocity is changing
Answer is in the picture

7) When you place a metal saucepan on the heating element of a stove, heat is transferred from the element to the saucepan by:
A reflection.
B convection.
C conduction.
D radiation.

8) Which of the following can be described as being luminous :
A Streetlights (turned on)
B A road sign
C The moon
D Water

9) In the burning of fireworks during New Year displays, chemical potential energy is converted into:
A heat, light and sound energy.
B light and sound energy.
C sound and heat energy.
D gravitational potential energy and light.

10) Which would be the most appropriate description of how energy is distributed when a torch is turned on?
A 70% light energy, 30% thermal energy
B 70% thermal energy, 30% electrical energy
C 65% light energy, 30% thermal energy
D 40% thermal energy, 55% light energy

Answers

Answer:

Explanation:

7.Conduction

Assuming the pot is cold and the heating element is hot: Heat will be transferred from the element to the pan via conduction because they are in contact with one another.

8.  C The moon

9.  A heat, light and sound energy.

When fireworks explode, chemical energy is transformed into thermal energy, mechanical energy, radiant energy, and sound energy.

10.A 70% light energy, 30% thermal energy

When the flashlight is turned on, the chemical energy is first transformed into electrical energy and then into light energy.

If number 10 is not correct then the answer is  C.

How is Venus similar to Earth?

Both have the same day length.
Both rotate in the same direction.
Both have ample water on their surfaces.
Both have a solid inner core and a liquid outer core.

Answers

Answer: D

Explanation: I have my answers VS. Go0gle answers (go0gle answers are pics)

(A) Both have the same day length. Well, Venus doesn't havve the same amount of days. (I already know off the top of my head, but I still searched it up)

(B) Both rotate in the same direction. In school (before Virus) they would always show diagrams of the planets on the projector and Venus doesn't rotate

(C) Both have ample water. No. Venus doesn't have much water >_>

(D) Both have a solid inner core and a liquid outer core. Yesh. In my lessons (before), Venus has a solid inner core and liquid outer core.

Find the energy of a 50kg object that is moving at 4m/s

Answers

the answer is 6/=7 which means i have no idea

which element has the highest atomic number,oxygen or aluminum

Answers

Answer:

Aluminum has the highest atomic number

4. Un móvil lleva una velocidad de 75 m/s, en dicho momento aplica los frenos durante tiempo de 15 segundos hasta detenerse. ¿cuál será la aceleración del frenado? ¿cuál es la distancia que recorre hasta detenerse?

Answers

Answer:

a = 5 m / s²   and    x = 562.5 m

Explanation:

Let's apply the kinematics relations

          v = v₀ + at

          v² = v₀² + 2a x

In this case, as the car stops, its final speed is zero (v = 0) and the acceleration must be opposite to the speed, that is, negative

           0 = v₀ - a t

           a = v₀ / t

let's calculate

           a = 75/15

           a = 5 m / s²

let's look for the distance

           0 = v₀² - 2a x

           x = v₀² / 2a

let's calculate

           x = [tex]\frac{75^2}{2 \ 5 }[/tex]

           x = 562.5 m

pls help meeee!!! will mark brainliest!!​

Answers

Answer:

water

is missing in above equation

hope it helps

James went to the doctor for a check-up and found his weight to be 1,000 N. How much mass does James have?

Answers

Answer:

102.04kg

Explanation:

(1000kg*m/s^2)/(9.8 m/s^2)

what happens if one part of the body breaks down​

Answers

Answer:

all the body parts work together to make your body function properly, so therefore, a lot of other body parts will break down

what are the comparisons and contrast of adaptation and natural selection? ASAP!!!!!!

Answers

Answer:

Natural selection is a mechanism, or cause, of evolution.

Explanation:

Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations.

If the distance between 2 charged particles is double, the force between them changes by a factor of?

Answers

Answer:

See explanation

Explanation:

Given that;

q1 and q2 are the magnitudes of the two charges while r1 is the distance between the charges.

F1 =kq1q2/r1^2

Then,

F2 = kq1q2/(2r1)^2

F2 = kq1q2/4r1^2

So,

F2 = 1/4 F1

The force between the charges changes by a factor of 1/4.

10. What is the acceleration due to gravity at a location
where a 15.0-kilogram mass weighs 45.0 newtons?
1) 675 m/s2
2) 9.81 m/s2
3) 3.00 m/s2
4) 0.333 m/s2

Answers

The answer is 3) 3.00 m/s2

How much is the velocity of a body
when it travels 6oo meter in 5 minute ?​

Answers

Answer:

velocity=2m/s

I hope it's helps you

Answer:

Its average speed, pretending that it traveled at a constant speed, is

v = s / t

= 600 m

5 x 60 s

= 2 m/s

Hope it help...

Havea great day

how could you weaken the force of gravity between cars and the Earth?
**I WILL MARK BRAINLEST**​

Answers

Answer:

The answer you have selected is correct.

Explanation:

Increase radius, force of gravity decreases

Mercury boils at 357C and freezes at -38.9C. Convert these temperatures
to Kelvin.

Answers

630.15 kelvin, 312.05 kelvin

What type of galaxy is pictured?


•elliptical
•irregular
•lens
•spiral

Answers

i believe it is elliptical
The first one hope this helps

If 550 J of work is done to pull a box horizontally across the floor 4.6m, what is the force of friction between the box and floor?

Answers

The answer is 119.57.. W=(force)(displacement) so you would do 550J=Ff(4.6m) then to get Ff on its own you divid 4.6 on both sides:)

The work done  is the product of the force and resulted displacement. The frictional force between the box and floor is 119.5 N.

What is force?

Force is external factor acting on a body to make a change in the state of an object . According to Newton's second law of motion, force is the product of mass and acceleration.

The work done in physics is the product of force acting on a body and its displacement. Therefore, the force which result in a displacement of the body is said to be work done on the object.

Here, the work done by frictional force is 550 J and displacement is 4.6 m.

Therefore, the force = work done / displacement

                                  = 550 J/ 4.6 m

                                  = 119.5 N.

Hence, the force between the floor and box will be 119.5 N.

To find more on frictional force, refer here:

https://brainly.com/question/1714662

#SPJ2

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