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guapka [62]
3 years ago
15

Describe and explain the stages of making copper chloride crystals and acid.

Chemistry
2 answers:
bulgar [2K]3 years ago
6 0

Answer:

Add excess copper carbonate to hydrochloric acid in a beaker, stirring until there is no further reaction. Filter the mixture to remove the remaining copper carbonate, then heat the remaining solution to the point of crystallisation. Leave the solution to cool and collect the crystals formed by filtration.

Explanation:

yKpoI14uk [10]3 years ago
6 0

Answer:

CHICKEN

Explanation:

EGG

LEG

PIC

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hammer [34]

Answer:

Covalent bond is a type of bond involves the bonding of two ions of opposite charges.

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Give me a summary on the big bang theory -Science
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The Big Bang is a scientific theory about how the universe started, and then made the stars and galaxies we see today. ... Then about 13.8 billion years ago, space expanded very quickly (thus the name "Big Bang"). This started the formation of atoms, which eventually led to the formation of stars and galaxies.
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2 years ago
sample with masses 0.12g,1.8g, and 0.562g are mixed together the combind mass of the three samples expressed to the correct numb
allsm [11]

Answer:

2.5 g

Explanation:

Given data:

Masses of sample = 0.12 g, 1.8 g, 0.562 g

Combine mass of samples = ?

Solution:

When we add or subtract the values the number of significant figures after decimal in result must be equal to the given measurement having less number of decimal places.

0.12 g + 1.8 g + 0.562 g

2.482 g

In given three measurements 1.8 has less number of significant figure after decimal point which is only one digit. Thus the final value must contain one digit after decimal.

we will round of 2.482 g.

2.5 g

because the next digit after 4 is 8 that's why we will round 4 to 5.

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3 years ago
Dibujo de la estructura de lewis con las siguientes iones o moléculas Pbi4 y AgNO3NO​
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7 0
2 years ago
Astatine is a halogen with several isotopes that all have short half-lives. Which of the following combinations of mass number a
DedPeter [7]

Answer:

Astatine is a halogen with several isotopes that all have short half-lives.

Which of the following combinations of mass number and neutrons are possible as isotopes of astatine? Choose one or more:

i) A = 211, n = 127

ii) A = 210, n = 125

iii) A = 220, n = 134

iv) A = 207, n = 122

v) A = 209, n = 124

Explanation:

The mass number is the sum of the number of protons and the number of neutrons in an atom.A=no.of protons+no.of neutrons\\=>no.of neutrons=A-no.of protons\\

Atomic number of At(astatine ) =85

That means it has --- 85protons.

Its mass number A=210

Hence, the number of neutrons in At are:

n=A-Z\\=>n=210-85\\=>n=125

Second option:

ii) A=210 , n=125 is the answer.

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2 years ago
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