a problem or issue in a human or natural environment caused by chemical reactions. Plz give me the URL as well.

1 answer:

5 0

The problem or issue in a human or natural environment caused by chemical reactions would be smog. It is a kind of air pollution, originally named for the mixture of smoke and fog in the air. The atmospheric pollutants or gases that form smog are released in the air when fuels are burnt. When sunlight and its heat react with these gases and fine particles in the atmosphere, it is formed.

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Why can color alone be used to identify most minerals?

VladimirAG [237]

Because a lot of minerals have the same color

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3 years ago

If I use 4 N of force to push an object 3 m, how much work have I done? A)3J B)4N C)12J

artcher [175]

Work done by me for using force of 4 N to push an object 3 m away is 12 J.

Explanation:

Work done on any object is defined as the force required to displace that object from its original position. In other terms, the work done is the measure of force utilized for moving an object. So mathematically it is represented as the product of force with the displacement of the object due to that force.

$Work Done = Force \times Displacement$

Then, here it is given that force of about 4 N is used to displace the object to 3m. Thus,

$\text { Work Done }=4 \times 3=12 \mathrm{J}$

So, 12 J of work is done by me to push an object 3 m away with the force of 4 N.

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3 years ago

Element X reacts with copper to form the compounds and . In which group on the Periodic Table is element X found? A) Group 1 B)

tatuchka [14]

Copper oxide
element x is oxygen location,group 16

6 0

4 years ago

An aqueous solution containing barium iodide (bai2) is electrolyzed in a cell containing inert electrodes. what are the products

ivolga24 [154]

Answer is: hydrogen (cathode), iodine (anode).
The balanced oxidation half reaction: 2I⁻(aq) → I₂(s) + 2e⁻.
Iodine is oxidized (lost electrons) from -1 to neutral charge (0).
The balanced reduction half-reaction: 2H₂O(l) + 2e⁻ → H₂(g) + 2OH⁻.
Hydrogen is reduced (gain electrons) from +1 to neutral charge.

8 0

4 years ago

Select the name of the element with a condensed ground-state electron configuration of [kr] 5s14d7.

Vilka [71]

elements have equal number of protons and neutrons

the condensed format is when the closest noble gas with the closest electron configuration is given, this closest noble gas atomic number should be lesser than the atoms atomic number

atomic number of Kr is 36

1 electron in 5s subshell and 7 electrons in 4d subshell.

there's a total of 36 + 1 + 7 = 44 electrons

atomic number of the atom is 44

element with atomic number 44 is Ruthenium - Ru

answer is Ru

7 0

3 years ago

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