CHEMISTRY HIGH SCHOOL

Which of the following combinations would result in the largest attractionbetween particles?
Large charges close together
Small charges close together
Large charges far apart from each other
OSmall charges far apart from each other

Answers

Answer 1
Answer:

Answer:

Explanation:

Large charges close together maybe

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The molar heat of vaporization of water is 40.7kJ/mol. How much heat must be absorbed to convert 50.0 grams of liquid water at 100oC to steam at 100oC?A) 1.46 X 10 kJ B) 1.13 X 102kJ C) 2.04 X 103kJ D) 3.66 X 104kJ
Which sample of HCl(aq) contains the greatest number of moles of solute particles?(1) 1.0 L of 2.0 M HCl(aq)(2) 2.0 L of 2.0 M HCl(aq)(3) 3.0 L of 0.50 M HCl(aq)(4) 4.0 L of 0.50 M HCl(aq)

A solid precipitate is formed from the reaction of lead nitrate and sodium chromate. What would be the best method to separate this solid from the solution?

Answers

The appropriate response is filtration. Filtration is any of different mechanical, physical or organic operations that different solids from liquids by including a medium through which just the liquid can pass. The liquid that goes through is known as the filtrate
The correct answer would be "filtration". It's a process that has operations that separate solids from fluids. This is done simply by adding a medium through which only the fluid can pass. After the fluid passes through a certain medium it it's called a filtrate.

How many times faster will oxygen gas diffuse than carbon dioxide

Answers

Carbon dioxide diffuses 20 times faster than oxygen gas

It is estimated, however, that the diffusing capacity of carbon dioxide is from 400 ml to 450 ml per minute under resting conditions and the diffusion capacity for oxygen under resting conditions is 21 ml per minute.

Explain the cause of the daily tides and give two examples of human activities affected by tides.

Answers

Tides are caused by the specific alignment of the Moon, Earth, and Sun.
When aligned a certain way the the gravitational pulls basically share and add on to each other creating tidal waves.

An example of a certain alignment would be spring tides, which happen during a New or Full moon.

Examples: Boat sailors must watch out for tides and make sure to plan their sailing journeys according to the tide. They don't want to be caught against a tide, especially small board sailors.

Also fisherman keep note of tides since some sea life rely on tides for survival and feeding or some fish simply follow the movement of the tides. Fisherman use tides as an indication of when it'd be best to go fishing.

What is conserved during a chemical reaction matter, energy, both, or niether?

Answers

Answer: Option (c) is the correct answer.

Explanation:

According to the law of conservation of energy or matter, it is stated that energy can neither be created nor it can be destroyed. It can only be transformed from one form to another.

Same applies to the matter that matter can be transformed from one form to another.  

Thus, we can conclude that during a chemical reaction both matter and energy is conserved.

Both energy and matter are conserved during a chemical reaction.

Further Explanation:

Chemical reaction

It is the process to convert one or more substances into different substances. Reactants are the substances that experience changes during chemical reactions whereas products are formed once the reaction is complete. The properties of products are usually different from those of reactants.

Law of conservation of mass:

According to this law, the mass of an isolated system can neither be created nor be destroyed in a chemical reaction. In other words, the mass of reactants will always be equal to the mass of products. The quantity of matter in any material is known as mass. The conservation of matter also holds good for chemical reactions.

Law of conservation of energy:

It states that the energy can neither be created nor be destroyed but can only be converted from one form to another.

Therefore both matter and energy are conserved during a chemical reaction.

Learn more:

  1. What does conserving mass mean in a chemical reaction? brainly.com/question/2093705
  2. Write the chemical formula of the compound: brainly.com/question/10585691

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Basic concepts of chemistry

Keywords: chemical reaction, matter, mass, energy, conserved, created, destroyed, reactants, products, properties, different, isolated system.

Which of the following agencies provide research funding that is not federally financed? A. Department of Energy B. National Institute of Health C. National Science Foundation D. American Diabetes Association Choose all that apply

Answers

The answer is d. American diabetes Association

American diabetes association is a non-government organization that was founded in 1940 in order to fight diabetes

They were non profit charity organization providing research for diabetes information

In which state of matter are the particles close together and highly organized? A. Solid. B. Liquid. C. Gas. D. All of the choices are correct.

Answers

Answer:

A. Solid

Explanation:

that is what creates a solid state. the particles are moving slowly enough (the matter is cold enough) that stable structures between them can be established. so, they get close together and create e.g. grids.
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