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gulaghasi [49]
3 years ago
13

What are white colours made up of

Chemistry
2 answers:
Keith_Richards [23]3 years ago
7 0

Every colour in the rainbow

Romashka-Z-Leto [24]3 years ago
3 0

every color mixed together makes the color white

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Why hyberdization occurs?
Damm [24]
Because the resulting hybridized orbitals are more stable
8 0
3 years ago
What is the oxidation number for as in as2o3?
Mekhanik [1.2K]
Ok so O3 has a greater electronegativity and is taken into account first, -2*3=-6, so As has to equal 6/2=3, so As has a +3 oxidation number here
8 0
3 years ago
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Calculate ∆E for the following case:
NARA [144]

Answer:

The internal energy(ΔE) of a substance is calculated below:

From the first law of thermodynamics;

ΔE=q+w

Explanation:

<u>ΔE=q+w</u>

here;

+q=endothermic reaction

-q=exothermic reaction

+w=work done on the system

-w=work done by the system

Given:

q=+1.62kJ=1620J

w=-874J

To solve:

the internal energy(ΔE)

We know:

ΔE=q+w

<em>according to the problem;</em>

ΔE=q-w

since;

w=-874J (i.e.)work is done by the system.

ΔE=1620-874

ΔE=+746J

Therefore the internal energy is +746J

i.e. the option is "c"(+746J)

5 0
3 years ago
A student is given a sample of CuSO4(s) that contains a solid impurity that is soluble and colorless. The student wants to deter
DochEvi [55]

Answer:

The impurity which is present in the solution of copper sulphate (CuSO4) is determined by the an instrument known as spectrophotometer.

Explanation:

Spectrophotometer is a device or an instrument which is used to determine the concentration of a chemical by measuring the detection of light intensity that is coming from the solution. If the solution of copper sulphate is checked through spectrophotometer, we can can determined or measure the amount of copper sulphate and the impurity in the solution.

3 0
3 years ago
Which of the following is NOT a possible clue that a chemical change has
Ulleksa [173]

Answer:

ok

Explanation:

Which of the following is NOT a possible clue that a chemical change has

taken place? *

A change of color

O A change of state

Production of gas

Formation of a precipitate

3 0
3 years ago
Read 2 more answers
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