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3 years ago

Is CaC1 a ionic , Polar covalant or non polar covalent ?

Chemistry

1 answer:

patriot [66]3 years ago

5 0

Polar Covalent.

This is because both Calcium (Ca) and Carbon (C) are non metals, thus eliminating the ionic option.

It is polar covalent rather than nonpolar covalent due to the fact that the electrons in a polar covalent bond are shared unequally while those in a nonpolar bond are shared equally.

This can be determined by looking at the amount of valence electrons; if the electrons cancel each other out, it is shared equally. If not, it is shared unequally.

Hope this helps!

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Science homework help !!

MatroZZZ [7]

Answer:

1. They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes.

2. On Earth, gamma waves are generated by nuclear explosions, lightning, and the less dramatic activity of radioactive decay.

3. Scientists can use gamma rays to determine the elements on other planets.

Explanation:

the explanation is above lol

5 0

3 years ago

A foil boat measures 4.0cm by 5.0cm and has a mass of 100.0g. If you put the boat in water, how far will it sink? (Recall the de

xxMikexx [17]

Answer:

Let the volume of the block of wood be

and its density be

−

So the weight of the block

dyne, where g is the acceleration due to gravity

980

−

The block floats in liquid of density

0.8

−

with

of its volume submerged.So the upward buoyant force acting on the block is the weight of displaced liquid

0.8

dyne.

Hence by cindition of floatation

0.8

⇒

0.2

-3

Now let the density of oil be

-3

The block floats in oil with 60% of its volume submerged.So the buoyant force balancing the weight of the block is the weight of displaced oil =

dyne

Now applying the condition of floatation we get

⇒

100

0.2

⇒

0.2

0.33

−

Explanation:

5 0

3 years ago

Modern masonry fireplaces are based on designs first developed _____.

lianna [129]

your answer is going to be (A.)during the little ice age

6 0

4 years ago

A rigid sphere is falling from a height of 1m in a fluid of density 1000 m3/kg. The time it took to fall is 500 seconds. If the

Allisa [31]

Answer:

0.00191 meter is the diameter of the sphere.

Explanation:

Velocity of the rigid sphere = $v=\frac{1m}{500 s}$

Density of the fluid = $\rho _f=1000 kg/m^3$

Density of the particle= $\rho _p=1100 kg/m^3$

Viscosity of the fluid = $\eta =100 centiPoise = 1 Poise=0.1 Kg/(m s)$

Radius of the sphere = r

$v=\frac{2}{9}\times \frac{\rho _p-\rho _f}{\eta }gr^2$

(Terminal velocity)

$\frac{1 m}{500 s}=\frac{2}{9}\times \frac{1100 kg/m^3-1000 kg/m^3}{0.1 kg/(m s)}\times 9.8 m/s^2\times r^2$

r = 0.00191 m

0.00191 meter is the diameter of the sphere.

8 0

3 years ago

If 25.0 g of carbon monoxide react with 8.50 g of ammonia and 10.0 g of hydrogen to produce water and acetonitrile (CH3CN), what

IgorC [24]

Answer:

The mass of NH₃ left over = 0.91 g of NH₃

The mass of H₂ left over = 8.2 g of H₂

Explanation:

The given information are;

The mass of the carbon monoxide present in the reaction = 25.0 g

The mass of the ammonia present in the reaction = 8.50 g

The mass of the hydrogen present in the reaction = 10.0 g

The above masses reacts to produce water and acetonitrile (CH₃CN)

The balanced chemical equation for the reaction is given as follows;

2CO + NH₃ + 2H₂ → CH₃CN + 2H₂O

Therefore, two moles of CO reacts with one mole of NH₃ and two moles of H₂ to produce one mole of CH₃CN and two moles of H₂O

The molar mass of CO = 28.01 g/mol

The molar mass of NH₃ = 17.031 g/mol

The molar mass of H₂ = 2.0159 g/mol

The molar mass of H₂O = 18.015 g/mol

The molar mass of CH₃CN = 41.05 g/mol

The number of moles of CO present = 25/28.01 = 0.893 moles

The number of moles of NH₃ present = 8.5/17.031 = 0.5 moles

The number of moles of H₂ present = 10/2.0159 = 4.96 moles

Therefore, 0.893 moles of CO reacts with 0.893/2 mole of NH₃ and 0.893 moles of H₂ to produce 0.893/2 mole of CH₃CN and 0.893 moles of H₂O

The excess reactants left are;

0.5 - 0.893/2 = 0.0535 moles of NH₃ with mass 0.0535 × 17.031 = 0.91 g

4.96 - 0.893 = 4.067 moles of H₂ with mass 4.067 × 2.0159 = 8.2 g

The mass of NH₃ left over = 0.91 g of NH₃

The mass of H₂ left over = 8.2 g of H₂.

5 0

4 years ago