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miskamm [114]
2 years ago
9

Which chemicals generate the following colors in the fireworks?

Chemistry
1 answer:
wariber [46]2 years ago
5 0
Strontium burns red
copper makes blue
barium glows green
sodium yellow
calcium salt orange
incandesence of iron (with carbon), chacoal, or lamplack gold
magnesium, aluminum and titanium were found to give off white sparkles, silver

Hopes this help you.
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Which group in the periodic table contains the three elements with the highest electrical conductivities?
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Answer:

C Group 11

Explanation:

Group 11, by modern IUPAC numbering, is a group of chemical elements in the periodic table, consisting of copper (Cu), silver (Ag), and gold (Au).

These elements show highest electrical conductivity.

7 0
3 years ago
Consider the following types of electromagnetic radiation:
liq [111]

Explanation:

Electromagnetic wave              Wavelength

(1) Microwave  =   1 m to 1 mm = 10^9 nm to 10^6 nm

(2) Ultraviolet  =    10 nm to 400 nm

(3) Radio waves  =   1 mm to 100 km = 10^6 nm to 10^{14}nm

(4) Infrared  =    700 nm to 1 mm

(5) X-ray  =   0.01 nm to 10 nm

(6) Visible =   400 nm t0 700 nm

a) In order of increasing wavelength:

: 5 < 2 < 6 < 4 < 1 < 3

b) Frequency of the electromagnetic wave given as:

\nu=\frac{c}{\lambda }

\nu = frequency

\lambda = Wavelength

c = speed of light

\nu \propto \frac{1}{\lambda }

So, the increasing order of frequency:

: 3 < 1 < 4 < 6 < 2 < 5

c) Energy(E) of the electromagnetic wave is given by Planck's equation :

E=h\nu

E\propto \nu

So, the increasing order of energy:

: 3 < 1 < 4 < 6 < 2 < 5

6 0
3 years ago
Giving brainly if correct​
Kamila [148]

Answer:

D

Explanation:

filtration, the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles.

Hope that helps

Have a good day

Can I have brain pls

6 0
2 years ago
Read 2 more answers
Which of these is an example of a two-track mind?
Arturiano [62]

Answer:

The answer is D."We see whole images, while feature detectors detect specific"

6 0
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How does a negative ion differ from a positive?
Ilya [14]
A negative ion or anion is an electrically charged atom or group of atoms that are formed by gaining one or more electrons. Whereas a positive ion or cation is an electrically charged atom or group of atoms that are formed by losing one or more electrons. 
The losing and gaining all occurs on the outermost shell. 
7 0
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