CHEMISTRY HIGH SCHOOL

25 The chemical process in which electrons are gained by an atom or an ion is called(1) addition (3) reduction(2) oxidation (4) substitution

Answers

Answer 1

Answer:

Answer: Option (3) is the correct answer.

Explanation:

In the process of oxidation, an atom loses electrons or an increase in oxidation number of the atom occurs.

For example, $Cu(s) \rightarrow Cu^(2+)(aq) + 2e^(-)$ is an oxidation process.

Whereas in a process of reduction, an atom gain electrons or a decrease in oxidation number of the atom occurs.

For example, $2Ag^(+) + 2e^(-) \rightarrow 2Ag(s)$ is a reduction process.

Thus, we can conclude that the chemical process in which electrons are gained by an atom or an ion is called reduction.

Answer 2

Answer: It is the process of reduction. If you want to remember it, I recommend remember that gaining electrons 'reduces' charge, by increasing the negative number... If that makes sense XD

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Sheela wants to make a computer model of a land ecosystem. Part of her model simulates the chemical processes of photosynthesis that involve the creation of sugars. Which of these chemical processes are these?A. the light-dependent reactions
B. the light-independent reactions
C. the dark reactions
D. the reactions in the mitochondria

Answers

The correct answer is A, the ligt-dependent reactions. These reactions are responsible for the production of glucose molecules, by the utilization of carbon dioxide, and water along with the sunlight. Glucose is then broken down during resiration process, for the production of ATP in mitochondria.

B. the light-independent reaction is the correct answer in Edgen

The body gets rid of lactic acid in a chemical pathway that requires ___________. A. carbon dioxide . B. oxygen . C. amino acids . D. hydrogen

Answers

The body gets rid of acid in a chemical pathway that requires oxygen. The correct answer is B, oxygen.

the answer is b, oxygen! :)

Morant Bay is 33 km south of Port Antonio a pigeon can fly at a speed of 1.2 m s what is the displacement of morant bay from Port Antonio

Answers

Answer:

33km due south

Explanation:

Morant Bay is 33km south of Port Antonio;

Problem: displacement of Morant bay from Port Antonio;

Displacement is a vector quantity. It is the length of path between two position and the direction inclusive.

So, it has magnitude and must be specified with a direction.

Therefore, the displacement of Morant Bay from Port Antonio is 33km due south.

Choose one of the images and make a claim about whatyou think is going on in the unusual scene. Then, write a
paragraph explaining your claim. Point out at least two
details from the image that support your opinion.

Plz help!!!

Answers

Based on the information given, the claim in the picture is about a rally that took place in Washington.

What is a claim?

A claim simply means a statement that's used to support an argument. In this case, the image depicts the massive rally to protest the election of Donald Trump.

In the picture, women converged on Washington for a rally to protest the election of Donald Trump and also promote the rights of women. This can be illustrated as the crowd gathered.

Learn more about claim on:

brainly.com/question/2748145

Final answer:

According to the information provided, the allegation in the image is about a demonstration that took place in Washington.

Explanation:

According to the information provided, the allegation in the image is about a rally that occurred in Washington.

A claim is just a statement used to support an argument. In this scenario, the picture represents a big protest against Donald Trump's election.

Women gathered in Washington for a demonstration to protest Donald Trump's victory and to advocate for women's rights. This may be seen in the collected throng.

Learn more about Art Interpretation here:

brainly.com/question/28248155

#SPJ3

What type of radiation is emitted when polonium-212 forms lead-208?a. an alpha particle
b. a beta particle
c. gamma radiation
d. all of the above

Answers

Answer: The radiation that is emitted from the above process is alpha particle.

Explanation:

Alpha decay is defined as the process in which alpha particle is emitted. In this process, a heavier nuclei decays into a lighter nuclei. The alpha particle released carries a charge of +2 units. The released alpha particle is also known as helium nucleus.

$_Z^A\textrm{X}\rightarrow _(Z-2)^(A-4)\textrm{Y}+_2^4\alpha$

Beta decay is defined as the process in which beta particle is emitted. In this process, a neutron gets converted to a proton and an electron. The released beta particle is also known as electron.

$_Z^A\textrm{X}\rightarrow _(Z+1)^A\textrm{Y}+_(-1)^0\beta$

Gamma decay is defined as the process in which an unstable nuclei gives off excess energy by a spontaneous electromagnetic process and thus releases $\gamma -radiations$ .

These radiations does not carry any charge and are electrically neutral.

$_Z^A\textrm{X}^*\rightarrow _Z^A\textrm{X}+_0^0\gamma$

The chemical equation for the decay of polonium-212 isotope follows:

$_(84)^(212)\textrm{Po}\rightarrow _(82)^(208)\textrm{Pb}+_2^4\alpha$

Hence, the radiation that is emitted from the above process is alpha particle.

A. An alpha particle.

Hope this helps :) ~

Rob measures the solubility of three different salts in water at 22°C. Which type of graph should he use to display his data? bar graph line graph histogram scatterplot

Answers

The best graph Rob can use to show his data is a scatter plot. A scatter plot shows a relationship between two sets of data in this case the solids and their respective solubility. A scatter plot is very specific in showing how one variable is affected by another variable.

Answer:

bar graph

Explanation:

hope it helps

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