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leva [86]
2 years ago
12

How many grams of Copper are in 500grams of Cu2CO3?

Chemistry
1 answer:
Novay_Z [31]2 years ago
7 0

Answer:

≈170.22 [gr].

Explanation:

1) M(Cu₂CO₃)=2*64+12+3*16=188 [gr/mol];

2) the part of copper in Cu₂CO₃ is:

\frac{64}{188} =\frac{16}{47};

3) 16/47% of 500 [gr] is:

500*\frac{16}{47}=170.22[gr].

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Is 2 C4H10 + 13 O2 → 8 CO2 + 10 H2O a double replacement?
natulia [17]

Answer:

The answer to your question is No, it is not.

Explanation:

Data

                C₄H₁₀  +  13O₂   ⇒   8CO₂ +  10H₂O

In a double replacement reaction, two reactants interchange cations an example of these reactions are neutralization reactions. In neutralization reactions, an acid and a base react to form a salt and water.

The reaction of this problem is not a double replacement reaction because the products are carbon dioxide and water, not a salt and water.

The reaction of this problem is a combustion reaction.

8 0
4 years ago
What is A mixture of very hot gas, falling ash and magma rock
Vsevolod [243]

Volcanic sulfur    :) .    

3 0
4 years ago
One photon of a certain type of light has an energy of 7.32x10^-19 J. a.) What is the frequency of this type of light? b.) What
iren [92.7K]

Answer:

f = 1.1041 × 10¹⁵ s⁻¹

λ = 2.72  × 10⁻⁷ m

Explanation:

Given data:

Energy of photon = 7.32 × 10⁻¹⁹ J

Wavelength = ?

Frequency = ?

Solution:

Formula

E = h. f

h = planck's constant = 6.63 × 10⁻³⁴ Kg.m²/s

Now we will put the values in equation

f = E/h

Kg.m²/s² = j

f = 7.32 × 10⁻¹⁹ Kg.m²/s² / 6.63 × 10⁻³⁴ Kg.m²/s

f = 1.1041 × 10¹⁵ s⁻¹

Wavelength of photon.

E = h.c /λ

λ =  h. c / E

λ = (6.63 × 10⁻³⁴ Kg.m²/s × 3 × 10⁸ m/s) / 7.32 × 10⁻¹⁹ Kg.m²/s²

λ = 19.89 × 10⁻²⁶ / 7.32 × 10⁻¹⁹ m

λ = 2.72  × 10⁻⁷ m

7 0
3 years ago
What is the term for a group of atoms held together by covalent bonds and having an overall positive or negative charge?
madam [21]
Polyatomic ion: a covalently bonded group of atoms that has a positive or negative charge and acts as a unit.
5 0
3 years ago
Read 2 more answers
A graduated cylinder contains 20.0 mL of water. An irregularly shaped object is placed in
RideAnS [48]

Answer:

7.17 g/mL

Explanation:

Density = Mass / Volume

Given mass of object : 80.4g

We are not given the objects volume, however we are given that when put inside of a container with 20.0mL water, the level of the water rises to 31.2 mL.

31.2 - 20 = 11.2

The water level rose 11.2 mL when the object was placed inside of the cylinder containing the water therefore the object has a volume of 11.2mL

Now to find it's density

recall that density = mass / volume

mass = 80.4 and volume = 11.2mL

so density = 80.4/11.2 = 7.17 g/mL

8 0
2 years ago
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