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vfiekz [6]
3 years ago
7

Is CuS an ionic, non polar or polar covalent bond and why

Chemistry
2 answers:
yuradex [85]3 years ago
8 0

Answer:

Ionic

Explanation:

ivolga24 [154]3 years ago
3 0

Answer:

Ionic Bond

Explanation:

CuS has an ionic bond between it as it it formed by the combination of two ions Cu⁺² and S⁻².

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How are exothermic reactions different from endothermic reactions?
Ostrovityanka [42]
Reactions which emits energy in the form of light or heat are called exothermic reactions.

reactant(s) -------------->  product(s) + heat

Reactant which absorbs energy in the form of heat or light are called endothermic reactions.

reactant(s) + heat -----------> product(s)

Hope this helps!

3 0
3 years ago
The laser in a 3D printer uses light with a frequency of 3.844 × 1014 Hz. Calculate the wavelength of this light in nm. Show all
Natali5045456 [20]

Answer:

The wavelength of this light is 780.4 nm.

Explanation:

Given that,

The frequency of laser light, f=3.844 \times 10^{14}\ Hz

We need to find the wavelength of this light.

We know that,

c=f\lambda

Where

\lambda is the wavelength of light

So,

\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{3.844 \times 10^{14}}\\\\=7.804\times 10^{-7}\ m\\\\=780.4\ nm

So, the wavelength of this light is 780.4 nm.

5 0
3 years ago
2. A sample of table sugar (sucrose, C12H22O11) has a mass of 1.202 g.
Snezhnost [94]

Explanation:

Given mass of sugar = 1.202 g

Molar mass of the sugar , C_{12}H_{22}O_{11} = 342.29 g/mol

a) Number of moles of sugar

\text{number of moles}=\frac{\text{given mass of sugar}}{\text{molar mass of sugar}}=\frac{1.202 g}{342.29g/mol}=0.0035 mol

Number of moles of sugar in 1.202 grams is 0.0035 moles

b)Moles of each element in C_{12}H_{22}O_{11}

In a molecular formula of sugar there are 12 carbon, 22 hydrogen and 11 oxygen atoms

Moles of an element in molecule =

number of atoms of that element in a molecular formula × number of moles of compound

Moles of carbon = 12 × 0.0035 = 0.042 moles

Similarly

Moles of hydrogen = 22  × 0.0035 = 0.077 moles

Moles of oxygen =11 × 0.0035 = 0.0385 moles

c) Number of atoms of each type in C_{12}H_{22}O_{11}

\text{Number of atoms}=\text{number of moles of that atom in a molecular formula}\times \text{Avogadro number}

Number of carbon atoms =0.042 mole\times 6.022 \times 10^{23}=2.52\times 10^{22} atoms

Number of hydrogen =0.077mole\times 6.022 \times 10^{23}=4.63\times 10^{22} atoms

Number of oxygen atoms = 0.0385 mole\times 6.022 \times 10^{23}=2.31\times 10^{22} atoms

7 0
3 years ago
Read 2 more answers
Why do you think reducing the amount of acid in the stomach would help to heal stomach ulcers
Mamont248 [21]
The acid is harsh and causes pain so having less of it means that it is less aggressive
4 0
3 years ago
3. 6 th grade Question
viva [34]

Answer:

A

Explanation:

Clear glass reflects light, but frosted glass absorbs light.

6 0
3 years ago
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