Convert 123 in scientific notation

Answers

Answer 1

Answer: ✡ Answer: 1.23*10^2 ✡

- - Add a decimal at the end (to the right) and count till you get to the first number.
So now you have 1.23

- - Now you always want to times it by 10 to the power of how many times you moved it over, in this case, 2

Final answer: 1.23*10^2

✡Hope this helps✡

Answer 2

Answer: 123= 1.23*10^2.

The coefficient should be >=1 and <10.

Hope this helps~

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Nuclear fission produces about one-fifth the power in the United States. An unintended positive consequences of nuclear power has been that A) a lot of power is generated. B) radioactive waste is created. C) less greenhouse gases are created. D) nuclear power plants are targets for terrorists.

Answers

answer is C) less green house gases are created

Answer:

Explanation: i did it and it wasn't c it was b

What is required for reactants to form bonds? a. energy output
b. energy input
c. equilibrium
d. exchange reaction

Answers

a. Energy output
since you need to release a certain amount of energy to hit the activation point.

What two factors determine the thermal energy in a substance

Answers

the answer to that is mass and chemical

1 Iron can be extracted from iron(III) oxide using carbon, shown by the equation below:Fe²O³ + C -> Fe + CO
Balance the equation and state which substance is oxidised and which is reduced

Answers

Explanation:

To balance the chemical equation for the extraction of iron from iron(III) oxide using carbon, you need to ensure that the same number of each type of atom appears on both sides of the equation. Here's the balanced equation:

2Fe₂O₃ + 3C -> 4Fe + 3CO

Now, let's determine which substance is oxidized and which is reduced:

1. Iron (Fe) undergoes a change in oxidation state from +3 in iron(III) oxide (Fe₂O₃) to 0 in elemental iron (Fe). It is reduced because it gains electrons, going from a higher positive oxidation state to zero.

2. Carbon (C) in carbon (C) undergoes a change in oxidation state from 0 to +2 in carbon monoxide (CO). Carbon is oxidized because it loses electrons and goes from an oxidation state of 0 to +2.

So, in this chemical reaction:

- Iron is reduced (it gains electrons).

- Carbon is oxidized (it loses electrons).

A student analyzed an unknown sample that contained a single anion. The sample gave a white precipitate upon addition of a solution of AgNO3 which dissolved in ammonia. Which anion is present in the unknown solution? Write the corresponding net ionic equation.

Answers

Answer:

Chloride ion

Explanation:

The anion present in the unknown solution would be chloride ions.

A white precipitate of silver chloride is usually formed when drops of silver nitrate are added to a solution containing chloride ions. The ionic equation is as below:

$Cl^- (aq) + Ag^+ (aq) --> AgCl (s)$

Baking a cake is an example of -a. forming mixtures.
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c. exothermic reactions.
d. endothermic reactions.

Answers

I think the correct answer is D. Baking a cake is an example of endothermic reaction. The chemical changes happening when you bake a cake includes denaturing proteins in milk, eggs, and flour. Chemical bonds are broken and new bonds are made. To aid these changes, heat is supplied by the heat in an oven.

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