Chemistry High School

how many molecules are in 2h2o2

Answers

Answer 1

Answer:

I think 7, 4, 6, or 8

I think that one of those is correct

Explanation:

Related Questions

what are the materials needed during photosynthesis?

Answers

To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis. Carbon dioxide enters through tiny holes in a plant's leaves, flowers, branches, stems, and roots. Plants also require water to make their food.

Why are prefixes not needed in naming ionic compounds?

Answers

Answer:

its A

Explanation:

Answer:

C. Ions combine in only one ratio

Explanation:

Just took the quiz

35.46 g silver nitrate reacts with 52.61 g sodium chloride to produce silver chloride and sodium nitrate.
How much silver chloride solid will be produced?

Answers

Here are the steps hope it helps

Long form EC for Aluminum

Answers

Here is the answer.

Indicate whether each statement is true or false: a. Substitutional alloys tend to be more ductile than interstitial alloys. b. Interstitial alloys tend to form between elements with similar ionic radii. c. Nonmetallic elements are never found in alloys.

Answers

Answer:

Substitutional alloys tend to be more ductile than interstitial alloys. true

Interstitial alloys tend to form between elements with similar ionic radii.false

Nonmetallic elements are never found in alloys. false

Explanation:

Substitutional alloys consists components having similar atomic(ionic) radii as well as common bonding characteristics. In interstitial alloys, atoms in interstitial positions must have a much smaller covalent radius than the solvent atoms. Interstitial atoms are generally less ductile than substitutional alloys.

Nonmetals are found in alloys. For instance, carbon is a component of the common alloy called steel.

how dose the scientist know the substances goes through a change of state during the time period labeled B on the graph?

Answers

Answer:

The temperature remains constant

Explanation:

In a plot of temperature against time, it is easy to spot the points on the graph where a change of state is taking place.

During a change of state, the temperature does not not change with time. These are points that are plateaus on the temperature-time graph.

This is because, during phase change, the heat that is added is used in breaking intermolecular forces therefore a temperature change is not observed until the phase change is complete.

Which of the following groups of elements has two valence electrons and is highly reactive?

Select one:
a. Alkali metals
b. Alkaline-earth metals
c. Halogens
d. Noble gases

Answers

B, Alkaline earth metals

explain why the weight of an object changes if taken to the moon but not its mass​

Answers

Answer:

Because the gravitational force alters

Explanation:

___are organelles found in plant cells. They absorb energy from sunlight and use that energy to drive chemical reactions that produce sugars and oxygen.

Answers

Chloroplasts

Hope this helps !!

Which element’s atoms have the greatest average number of neutrons?

Answers

Answer:

53

Explanation:

the atomic number is 53, then Number of neutrons=127-53=74 Since, the number of neutrons are large in Tellurium, therefore Tellurium have the greatest average number of neutrons.

Look at position 2 on the roller coaster
Is there more potential or kinetic energy , why ?

Answers

Potential. Technically the car isn’t in motion at point 2 and is using the kinetic energy from the drop of point 1

Plz help!

What must change in order to change the amount of power?

Answers

Answer:

Mass

Explanation:

The chlorophyll processes the ingredients to make
(plant food) and

Answers

The chlorophyll processes the ingredients to make

(plant food) and

Answer:

oxygen

Explanation:

which description shows copper at rtp?​

Answers

Answer:

It is malleable, ductile, and an extremely good conductor of both heat and electricity. It is softer than zinc and can be polished to a bright finish. It is found in group Ib of the periodic table, together with silver and gold. Copper has low chemical reactivity.

What voltage will produce 3 A through a circuit that has 15
ohms of resistance?

Answers

Answer:

5 ohms of resistance

Explanation:

15/3=5

answer
5
because
3 divided by 15 is 5

When are kids ready to assume adult responsibilities?

Answers

Answer:

18 years old or when they become mature.

Explanation:

Which of these equations is balanced?

1. 4Sb + 3O2 → Sb4O6

2. H3 AsO4 → As2O5 + H2O

3. SiO2 + HF → SiF4 + H2O

4. CO2 + NH3 → CO(NH2)2 + H2O

Answers

Answer:

the first is the answer

For the elements in the "f-block," how is the row number related to the principal energy level for the last orbital notation of their electron configurations?"

Answers

Answer:

See explanation

Explanation:

Given that the row number is the same as the period or energy level(shell) in which the electron is found.

If we designate this row number as "n", we know that the  highest principal energy level for the f orbitals is obtained as (n-2) f.

Thus, we obtain the highest principal energy levels for the "f block" elements by subtracting 2 from  the row number.

write down the cell equation. please​

Answers

Answer:

see explanation

Explanation:

symbiology is (oxidation rxn || reduction rxn)

=> Zn°|Zn⁺² || Cu⁺²|Cu° => Zn°(s) + Cu⁺²(aq) => Zn⁺²(aq) + Cu°(s)

URGENT !! PLEASE ANSWER !!
Is C-O a nonpolar or polar covalent bond? why?

Answers

I’m pretty sure it’s polar covalent bond

what information do the coefficients of a balanced equation give about the reactants

Answers

The information that the coefficients of a balanced equation give about the reactants are to tell how many moles of reactants are needed and how many moles of product can be produced.

Giving brainliest !!!

Answers

Answer:

a and i thinkc

Explanation:

explain what happens during the chemical reaction
CaCO3 -> CaO + CO2

Answers

check out this article i found it very helpful,

I couldn't find the answer to your question.

The electron configuration below applies to which element? 1s2 2s2 2p6 3s2 3p1

Answers

aluminum! hope this helps

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Answers

Lol hiiiii...... :) wasssupp

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Define symbol ..........
​

Answers

Answer:

Hey mate here's your answer ⤵️

a mark or character used as a conventional representation of an object, function, or process, e.g. the letter or letters standing for a chemical element or a character in musical notation.

Hope it was helpfulll

noun: letter, character, sign of written communication

Something used for or regarded as representing something else; a material object representing something,

or a character of some kind

Example:

Often something immaterial; emblem, token, or sign: "$"<< the dollar sign is a symbol used to show / means money

Hope this kinda helped

what is a substrate

Answers

Answer:

a substrate is surface or material on or from an organism lives, grows, or obtains its nourishment.

Explanation:

Hey I hope this helps.....

How many atoms of aluminum (Al) are in 3.94 mol of aluminum

Answers

Answer:

26.9

Explanation:

that is my answer I try to it

which line represents the gas state?​

Answers

Answer: F : Gas

Explanation:

The answer to the question is just plain gas which is F

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Answers

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