All categories

3 years ago

The ratio of Na to O is 2:1. What is the chemical formula for this ionic compound? NaO NaO2 Na2O Na2O2

Physics

2 answers:

zlopas [31]3 years ago

3 0

its C because i just anwserd it & it was right

vladimir2022 [97]3 years ago

3 0

Answer:

The molecular formula of the ionic compound will be $Na_2O$ .

Explanation:

The ratio of Na to O is 2:1

This means that for every two atoms of sodium there are 1 atom of oxygen.Then the molecular formula will be:

Let the number of sodium atom be 2x and oxygen atom be x

$Na_{2x}O_x=Na_2O$

The molecular formula of the ionic compound will be $Na_2O$ .

You might be interested in

Hurricane sandy produced some of the greatest destruction along the new jersey coast in communities situated along narrow strips

FrozenT [24]

The correct answer to fill in the blank would be:

“a barrier island”

Barrier islands are coastal landforms and a category of dune system that are remarkably even or lumpy areas of sand that was formed by wave and tidal actions that are parallel to the mainland coast. Due to this feature, there are no enough sand blockades to minimize the destruction by Hurricane Sandy.

4 0

2 years ago

What evidence do we have that Earth has a magnetic field surrounding the planet?

Ber [7]

A compass works the way it does because Earth has a magnetic field that looks a lot like the one in a magnet. The Earth's field is completely invisible, but it can be felt by a compass needle on the Earth's surface, and it reaches thousands of miles out into space.

5 0

2 years ago

Read 2 more answers

Consider a plywood square mounted on an axis that is perpendicular to the plane of the square and passes through the center of t

belka [17]

Answer:

T= 8.061N*m

Explanation:

The first thing to do is assume that the force is tangential to the square, so the torque is calculated as:

T = Fr

where F is the force, r the radius.

if we need the maximum torque we need the maximum radius, it means tha the radius is going to be the edge of the square.

Then, r is the distance between the edge and the center, so using the pythagorean theorem, r i equal to:

r = $\sqrt{(0.38m)^2+(0.38m)^2}$

r = 0.5374m

Finally, replacing the value of r and F, we get that the maximun torque is:

T = 15N(0.5374m)

T= 8.061N*m

4 0

3 years ago

An ac generator consists of a coil with 40 turns of wire, each with an area of 0.06 m2. The coil rotates in a uniform magnetic f

Reptile [31]

Answer:

331.75 V

Explanation:

Given:

Number of turns of the coil, N = 40 turns

Area, A = 0.06 m²

Magnetic Field, B = 0.4 T

Frequency, f = 55 Hz

Maximum induce emf, E₀ = NABω

but ω = 2πf

Maximum induce emf, E₀ = NAB(2πf₀)

Maximum induce emf, E₀ = 2πNABf₀

Where;

N is number of turns of the coil

A is area

B is magnetic field

ω is the angular velocity

f is the frequency

E₀ = 2 × π × 40 × 0.06 × 0.4 × 55

E₀ = 342.81 V

The maximum induced emf is 331.75 V

6 0

2 years ago

A trip is taken that passes through the following points in order

Inessa05 [86]

Answer:

B) - 5.0 m

Explanation:

B is located on a positive location, 15m from the starting point A. Hence, since E is located a positive distance 10m from A, the difference becomes 10 - 15 = - 5.0 m

5 0

2 years ago