Chemistry High School

march 10
march 3
february 16
february 22

March 10march 3february 16february 22

Answers

Answer 1

your answer will be March 3

Answer 2
March 3rd for sure!
Good luck

Related Questions

does sugar have ionization of ions in water

Answers

Nope. Sugar does not have ionization.

Which of the following dilutions would produce 2.0M acid from 3.0M acid

A) 3.0mL acid and 2.0mL water

B) 2.0mL acid and 1.0mL water

C) 2.0mL acid and 3.0mL water

D) 1.0mL acid and 2.0mL water

Answers

Answer:

that's a little bit difficult question

Explanation:

sorry !

(25 POINTS AND BRAINLIEST)What is the volume of 2 mol of chlorine gas at STP?
2.0 L
11.2 L
22.4 L
44.8 L

Answers

Answer:

44.8

Explanation:

According to standard temperature and pressure and ideal gas equation , the volume of 2 mole of chlorine gas at STP  is 44.8 liters.

What are standard temperature and pressure conditions?

Standard temperature and pressure are defined as a standard set of conditions required for experimental measurements which are established to allow comparison between different sets of data.

Standards which are commonly used are those International Union of pure and applied chemistry and national institute of standards and technology.These are not universally accepted standards but are the ones which are commonly used.

Standard conditions of pressure and temperature are necessary to define standard reference conditions used to express volumes of liquids and gases.

These values are important to physicists, chemists ,engineers ,pilots and navigators.On substituting values in ideal gas equation, volume= 2×8.314×273/1=44.8 liters.

Thus, the volume of 2 mole of chlorine gas at STP  is 44.8 liters.

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How many moles are in 1.6g HCl ?

Answers

Answer:

0.0438825768068512

Explanation:

use a calculator online, you wont have to wait

how many moles are in 425g of KNO3?​

Answers

Answer:

The answer is 101.1032

Explanation:

Why do engineers use metals in making
electrical wires

Answers

Answer:

Why is copper used for most electrical wiring? All metals have some amount of resistivity to electrical currents, which is why they require a power source to push the current through. The lower the level of resistivity, the more electrical conductivity a metal has

how does the air move in a land breeze?

Answers

Answer:

The air over the ocean is now warmer than the air over the land. The land loses heat quickly after the sun goes down and the air above it cools too

Explanation:

32 g of CH4 react with 128 g of O2, producing 88 g of CO2. How many grams of water are produced?

Answers

Answer:

88 g

Explanation:

32 g of CH4 react with 128 g of O2, producing 88 g of CO2.

1. What is a food web?
A group of animals
a food chain with two levels
A producer and consumer relationship
how several food chains are related

Answers

Answer:

a producer and consumer relationship how several food chains and related.

Answer:

The answer is:

Explanation:

A food chain with two levels.

Hope this helps!!

❤️

:)

What advantage does cross pollination have over self-pollination?
1. It allows a plant to have both male and female flowers.
2. It assures that there is genetic variety within each plant species.
3. It ensures that all offspring will be identical.
4. It allows a plant to fertilize itself.

Answers

Answer:

It allows all the plants to have one genetic

How did boyle's change the way scientists make discoveries

Answers

Robert Boyle put chemistry on a firm scientific footing, transforming it from a field bogged down in alchemy and mysticism into one based on measurement. He defined elements, compounds, and mixtures, and he coined the new term 'chemical analysis, a field in which he made several powerful contributions.

Robert Boyle established chemistry as a discipline based on measurement, freeing it from the mysticism and alchemy that had plagued it. He introduced the concept of chemical analysis and defined elements, compounds, and mixes.

Boyle used a vacuum chamber to alter the gas's pressure in order to find the link between pressure and volume in a gas, which is now known as Boyle's law. In order to demonstrate that pressure and volume are inversely related to one another, he made detailed observations and carried out a number of experiments.

He developed a new vacuum pump and performed experiments in vacuum, they found that neither sound nor flame could exist there.

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In your lab group you combined vinegar and water and observed the results shown in the picture. Choose ALL of the evidence that
supports that a chemical change has occurred.

A gas is produced.

B)The color changed.

c) Bubbling occurred.

D) The baking soda dissolved.

E) There is a change in the composition of the reactants.
ANOTHER HELP OVER HEREEEEEE PLSSSSSSS

Answers

The declaration made in the image's results indicates that a chemical shift has taken place. There occurs the creation of gas.

What occurred when you put vinegar in the water?

This occurs as a result of vinegar's composition of acetic acid and water. Acetic acid and water molecules create robust connections. These bonds cause the molecules inside the solution to move more slowly than those in pure water, hastening the freezing of the solution.

Briefing:

A cup of vinegar and a cup of warm water are the basic components of the vinegar cleaning solution. Grease as well as hard water stains are easier to remove with warm water. It may be best to combine the vinegar and distilled water rather than tap water when filling a spray container that will be used often.

To create a chemical reaction, what can you combine with vinegar?

A chemical reaction between vinegar (acetic acid) and baking soda (sodium bicarbonate) results in the production of salt (sodium acetate), water, and carbon dioxide gas.

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What is the chemical formula for Tetrasulfur pentoxide?

Answers

Answer:

S 4 O 5

Explanation:

the 4 and 5 are little

How many grams are in 4.2 X 10^2 moles of bromine?

Answers

Answer:

The answer is below:

Explanation:

3355.968

What is the primary difference between two different isotopes?

Answers

Answer:

Because different isotopes have different numbers of neutrons, they do not all weigh the same or have the same mass. Different isotopes of the same element have the same atomic number. They have the same number of protons. The atomic number is decided by the number of protons.

Hope this helps!!!!

Explanation:

What do tissues working together
form?
Organs
Organ systems

Answers

Answer:

tissues working together form organs.

The answer is organs.

Explanation:

cells form tissues, tissues form organs, and organs that fulfill related functions make up the organ system...hope this helps(:

Suppose you have an ice cube with mass of 8.00 g at a temperature of 295 K. If that ice cube is heated until it is completely converted to steam at 373 K how many joules of heat must be added ?

Answers

Explanation:

In order to be able to answer this question, you must know the value of water's enthalpy of fusion, ΔHfus

Single displacement (replacement)

Answers

Explanation:

Single displacement (replacement) is kind of reaction in which 1 atom of reactants only change in product.

The question is
Which circuit will have the greatest electric current?

1. Circuit 2

2. Circuit 1

3. Circuit 4

4. Circuit 3

Answers

Answer:

4

Explanation:

because is has the greatest volt

How many molecules are in CaCO3

Answers

Answer:

6.022x10^23 molecules

Explanation:

Since it's one mole of CaCO3, multiply by Avogadro's number to get molecules

2.What are the 3 effects of acid rain..? ​

Answers

Answer:

1) Damages soil and trees.

2) Makes holes in statues and buildings.

3) Pollutes rivers and lakes.

Answer:

It can harm animals underwater and on land

It has an effects on trees, freshwaters, and soils destroy insects and aquatic life-forms,  and weathering stone buildings and sculptures, as well as impacts on human health.

Explanation:

I got it from a  video. Hopefully, this helps.

someone help me on this one pls

Answers

Answer:

i believe it is mass and distance

Explanation:

i hope that was correct, good luck by the way.

Answer:

I think it's mass and distance

An ionic bond involves two elements...

Answers

Answer:

a metal and a nonmetal element

Explanation:

Zora wants to dissolve a solute in a solvent quickly. Which best describes what she should do?

decrease the pressure
decrease the surface area
shake it repeatedly
place in a refrigerator

Answers

Answer:

C    shake it repeatedly

Explanation:

i think thats the answer if not sorry hope it helps you.

Answer:

C.

Explanation:

What is the best color? Personally I think its purple.

Answers

For me sunset orange is the best color, it’s a very peaceful and calm color
purple used to be mine as well. Now it’s red since my whole family is associated with the notorious street gang called the“bloods”.

A student did an investigation to determine the effect the amount of air would have on plant growth. She planted identical
plants in 4 separate closed containers with different volumes of air. She measured the height of the plants after they had
grown for 3 weeks.
What is the dependent (responding) variable in her investigation?

Answers

Answer:

Explanation:

The responding variable always is measured against the variable that you have control over.

In this case, you have control over the volume of air.

The responding variable is the amount the plant has grown.  This would be a good long term experiment to try for a science fair or just because you might be interested. It's a good simple idea.

Directions Solve the given problem below by showing the following:
I ELECTRONIC CONFIGURATION
2. LED structure
GIVEN: Magnesium (Mg) and Oxygen (180).​

Answers

Explanation:

(a). Write down the electronic configuration of (i) magnesium atom, and (ii) magnesium ion, <br> (At No. of Mg=12) ,brgt (b). Write down the electronic configuration of (i) sulphur atom, and (ii) sulphide ion. <br> (At. No. of S=16).

How many grams of silver are present in 15.0 g of silver sulfate?

Answers

Answer:

4676.985 .  grams of silver present in 15.0g of silver sulfate              

Q+ ( poistive ion ) is an ion of element Q.
What has the highest value in the ion?

Answers

The answer is A
Hope this helps you

The proton number has the highest value in the ion

In an atomic element Q, the mass number is the number of the proton and the neutron, the electron encircles around the nucleus of the atomic element.

Recall that:

The electron is usually negatively charged;The neutron is a neutralThe proton is usually positively charged.

∴

The atomic element Q+ has a positively charged ion, Thus, the proton number in the mass of the atomic element Q, therefore, has the highest value in the ion.

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How are different isotopes determined?

Answers

Answer:

Atoms that have the same number of protons but different numbers of neutrons are known as isotopes. Isotopes have different atomic masses. The relative abundance of each isotope can be determined using mass spectrometry.

Explanation:

hope this helps!!! >_<

Answer: The relative abundance of each isotope can be determined using mass spectrometry.

Explanation: Atoms that have the same number of protons but different numbers of neutrons are known as isotopes. Isotopes have different atomic masses

hope this helps :)

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Is 15/60 equivalent to 1/4 Help me its urgent Ballerina nails or oval nails???