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Luden [163]
3 years ago
8

1. What is oxidation? * O a. it is loss of electrons O b. it is gain of electrons O c. it is loss of protons O d. none of the ab

ove​
Chemistry
1 answer:
Lemur [1.5K]3 years ago
7 0

Answer:

yes

Explanation:

who wants free points

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Acids or bases can be tested by chemical_________
DedPeter [7]

Answer:

acids or bases can be tested

by chemical indicators

7 0
2 years ago
Read 2 more answers
CLIC 3. The blank is the central part of an atom.​
lorasvet [3.4K]

Answer:

The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

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2 years ago
Classify the four reactions that your group analyzed today as being either endothermic or exothermic
ArbitrLikvidat [17]
Chemical reactions are basically divided into two major classes depending on whether the reaction lose energy or gain energy from the environment during the course of the reaction. The two classes of reaction are exothermic and endothermic reaction.
An exothermic reaction is a type of reaction in which the reaction system lose energy to the environment and thus, the energy content of the reactants is more than that of the product formed. Because of this, the enthapyl change of an exothermic reaction is always negative. 
An endothermic reaction is a type of reaction in which the reaction system absorb energy from the environment. Thus, the energy contents of the products is always higher than that of the reactants and the enthapyl change of the reaction is always positive. During the course of the reaction, the reaction container is usually cold to the touch because energy is been absorbed from the environment.
4 0
3 years ago
Sometimes a nuclide is referenced by the name of the element followed by the:
pentagon [3]

Answer:

electric charge

Explanation:

A nuclide is represented by the name of the element, preceded by the mass number (A) as a superscript on the left and the atomic number (Z) as subscript.

On the right, as a superscript is the electrical charge (e.g. +2) and is following the element name.

8 0
3 years ago
Help me out will ya?
vampirchik [111]

Answer:

  1. Option C) the chance of water-borne diseases.

Explanation:

When a <em>flood </em>happens, water will lpotentially get contaminated by several causes which include the overflow of untreated wastewater, the decomposition of the carcasses of animals and people, and the chemical contamination from industries.

In general, biochemical and chemical hazards are present in the water, after a flood, which means that the authorities and population should take extreme care for the use and intake of water: chemical treatment (use of chlorine), boil water. As usual, children and the elderly are the most at risk in those conditions.

6 0
3 years ago
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