Chemistry High School

PLZ HELP SCHOOL STARTS TMR AND I NEED THIS DONE BY 2NIGHT. ILL GIVE BRAINLIEST​

PLZ HELP SCHOOL STARTS TMR AND I NEED THIS DONE BY 2NIGHT. ILL GIVE BRAINLIEST

Answers

Answer 1

Answer:

Filtration separates solids of different sizes.

Distillation takes advantage of differences in boiling points.

Evaporation removes a liquid from a solution to leave a solid material.

Related Questions

The reaction represented by this graph is an exothermic reaction. According to the graph, which statement is true? Reactants have more energy than products. Products have more energy than reactants. Reactants and products have the same amount of energy.

Answers

Answer:

Reactants have more energy than products

Explanation:

Generally, in an exothermic reaction heat is released. In other words, energy is released. So you start with reactants which have a set amount of stored chemical energy, and you lose some in the reaction. Since energy is 'leaving', the stored chemical energy in the products is less than what we started with in the reactants. When given a graph, you can tell this is true because going from left to right, the line representing the stored chemical energy will start at a higher level than where it ends.

The true statement about an exothermic reaction is that reactants have more energy than products.

What is an exothermic reaction?

An exothermic reaction is one in which the energy of reactants is greater than that of products. As such, energy is given off during the reaction in form of heat.

Thus, the true statement about an exothermic reaction is that reactants have more energy than products.

Learn more about exothermic reaction:https://brainly.com/question/10373907?

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Type the correct answer in each box.

Complete the chemical formula for each ionic compound. Consult the periodic table to help you answer the question.

magnesium nitride: Mg___N___

calcium chloride: CaCl____

Answers

Answer:

mg3n2 and cacl3 hope it helps

how do you know the simulation is depicting a decomposition reaction
​

Answers

Answer:

1.A decomposition reaction occurs when one reactant breaks down into two or more products. This can be represented by the general equation: AB → A + B.

Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.

1. What is solar energy? Give an example

Answers

Answer:

Solar energy is energy from the sun. for example solar panels are used to use energy for the sun to give you eletricity.

Explanation:

Explanation:

solar energy is energy from the sun, it can be used for electricity.

Calculate the formula mass for Cr(C2H302) show work

Answers

Answer:

The mass of Cr(C2H302) is 229.122 grams


Formula mass of Cr(C2H3O2) is 229.1282 g/mol

Elemental composition of Cr(C2H3O2)
Element Symbol Atomic weight # Mass percent
Chromium Cr 51.9961 1 22.6930
Carbon C 12.0107 6 31.4515
Hydrogen H 1.00794 9 3.9591
Oxygen O 15.9994 6 41.8964


is the measure of this flow? its for thermal energy transfer interactive​

Answers

Can you show the chart please

what is the physical property to all of these (pls answer I’ll give brainliest)

Ability of an object to break apart or shatter easily.

Either transparent (clear), translucent (cloudy), or opaque (not allowing light through).

eg. red, orange, blue, ...

Amount of mass per unit volume of that matter.

Ability to be stretched into a long wire-like shape.

Definite geometric pattern.

Determined by the resistance to being scratched, given on a scale of 1-10 with a diamond being rated a 10.

Ability of an object to reflect light (eg. shiny).

Ability of a substance to be hammered or bent into different shapes.

The temperature when a solid melts.

eg. burnt, flowery

Ability of a substance (solute) to dissolve in a solvent such as water.

Condition of being a solid, liquid, or gas.

eg. sweet, sour, salty, bitter,.

The "feel" of an object (eg. silky, waxy, gritty,...)

The resistance of a liquid to flowing.

Answers

Answer:

Explanation:

Brittleness : The ability of an object to break apart or shatter easily

Ductility: The ability of a substance to be stretched out into a long wire-like shape.

Lustre: the ability of an object to reflect light.

Malleability is a substance's ability to deform under pressure

The melting point of ice is 0°C. The melting point of a solid is the same as the freezing point of the liquid

Solubility is the relative ability of a solute to dissolve into a solvent.

solid: Has a definite shape and volume.

liquid: Has a definite volume, but take the shape of the container.

gas: Has no definite shape or volume. change of state

The resistance of a liquid to flowing is its viscosity.

Let me Know if i missed somethin!!! :) Hope this Helped!!!

Answer:

1.Brittleness

2.Clarity

3.Color

4.How dense it is

5.Ductility

6.Crystalline

7.Hardness

8.Reflectivity

9.Malleability

10.Melting Point

11.Smell

12.Solubility

13.State of Matter

14.Taste

15.Texture

16.Viscosity

Janice wants to grow flowers in her backyard. She has four types of dirt that she could use, but she is unsure of which type would allow the flowers to grow the best. In order to figure this out, she sets up an investigation. Janice puts each type of soil in a different pot and plants a flower in each pot. What scientific question should Janice ask from her experiment?
A.
Which soil looks the best?
B.
Which soil type allows the flower to grow the most?
C.
Which soil is the oldest?
D.
Which soil type is preferred by most people?

Answers

Answer:

B

Explanation:

She is unsure of which soil would allow the flowers to grow best so the soil that allows the flower to grow the most is the best soil.

Answer:

B. which soil type allows the flower to grow the most?

How many molecules are in 7V205?​

Answers

Answer:

Calculate the number of moles you have by taking the Mass / molar mass. if you have 1000 grams ; then 1,000 g / 151.001 g/mol = X g moles. Then multiply by Avogadros # = 6.022140857 × 10^23 molecules per g mole. The result is the # of molecules of MnSO4

Explanation: Hope this helps

The ____________________ contain chlorophyll and make food from light energy.

Answers

Answer:

chloroplasts

Explanation:

Answer:

photosynthesis (i am not sure of answer choces, but this is the answer

Explanation:

Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. ... Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules. I also remember this from Science.

PLZ TELL ME IF RIGHT, 5 STAR AND BRAINLEST ONLY IF RIGHT

find the name for this W(C2H3O2)4

Answers

it’s glucose aka sugar but it’s called glucose

The name for this W(C2H3O2)4 is the chemical formula for lead(IV) acetate, often known as lead tetraacetate, is Pb(C2H3O2)4.

What is chemical formula?

Chemical formula is defined as any of a number of ways to describe the structure or content of chemical substances. The chemical formula is a way of expressing information about the atomic proportions that make up a certain chemical compound or molecule using the numbers and symbols of the chemical elements. The sorts of atoms and their numbers in a molecule or compound are described using chemical formulae. Each element's atoms are denoted by one or two distinct letters.

It is not a salt because it is a colorless solid that dissolves in nonpolar, organic liquids. Moisture causes it to break down, therefore acetic acid is usually added when storing it. The substance is utilized to create organic compounds.

Thus, the name for this W(C2H3O2)4 is the chemical formula for lead(IV) acetate, often known as lead tetraacetate, is Pb(C2H3O2)4.

To learn more about chemical formula, refer to the link below:

https://brainly.com/question/11995171

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The nucleus of the eukaryotic cell is important because it
A. Controls the passing of substances through the cell membrane
B. Its rigidity controls the passing of substances through the cell wall
C. Contains DNA and controls the cell

Answers

For this question I think the answer is C.

It is the location of a cell's DNA

Which means it controls the cells

Help me, I’m bad a science.

Answers

Answer:

Removing the worms is they first key to overcoming this problem. Thus you should ensure that the worms have not spread throughout the house/facility, or caused more damage.

Secondly, you should replace the pipes taht the worms got into, or clean them at most. If it’s simply worm droppings then just clean it, but if it’s more and worse than that alike slime then it is best to remove and replace it.

the only way the worms escaping could affect something is if they decontaminated it, or alas ate or destroyed it. Other than that if they died you could simply replace them, but e things cannot be replaced

Explanation:

You didn’t actually tell us any details so that the best I got from that

can I have brainlest pwease?

35 Before the discovery of oxygen some scientists had a different theory about burning.
What did they believe was present in all substances that burned?
A air
B hydrogen
C phlogiston
D reactivity

Answers

Answer:

B i have to search it like 23 hours to find it but Thank you for sharing your question :)
C phlogiston hope this helps

When a gas is heated, the gas particles have more kinetic energy. Complete the following sentence: This means they move about more and have more ______ with the sides of the container. This increases the pressure.

Answers

Answer:

Contact

Explanation:

As the particles heat up, they move around more, resulting in them hitting the sides of the container more.

The sediments along the side of this stream are an example of _________

Answers

Answer:

deposition of the slip off slope

Which of the following elements does not form a diatomic molecule?

A. Chlorine.
B. Nitrogen.
C. Neon.
D. Hydrogen.

Answers

Answer:

C

Explanation:

Neon is a noble gas, which is monoatomic.



HELP IM BEING TIMED

What type of weather can Georgia expect in the next 12 hours?


A light rain or drizzle


B heavy precipitation or thunderstorms


C many days of rain, snow, or fog


D sunny, clear, and windy

Answers

Answer: I think it's B

What is the most important organ in the Nervous System and why?

Answers

Answer: More than likely it is the brain. Since this is the center for all nerves and it controls the whole body.

what is the percent of aluminum found in Al2SO4

Answers

Answer:

15.772%

Explanation:

Reptiles, birds, and mammals reproduce by what type of
fertilization?

The correct answer is Internal

Answers

Internal Fertilization

What are some signs that a chemical change has occurred?

Answers

Answer:

Color Change.

Production of an odor.

Change of Temperature.

Evolution of a gas (formation of bubbles)

THe Precipitate (formation of a solid)

Explanation:

Colour change, change of temperature, gas present (so bubbles) and is there a smell.

The pressure inside of a tire is measured as
3.2 atm. What is this pressure in psi? Explain
the steps that you took to solve this problem.

Answers

Answer:

Aksjisssjsjszjsusshisbzjsvssjsh

Which term describes rocks that absorb water?
A ductile
B malleable
C porous
D streamlined

Answers

Answer:

C. porous

hope it helps!!!

please mark as the brainliest if it is correct!

True/False - Changing the temperature has no effect on the application of Graham's law?

Answers

Explanation:

By Graham's Law,

We have r1/r2 = √(M2/M1), where M represents the molar mass of the gas and r is the effusion rate.

Since temperature is not a variable here, the sentence is true.

This equation represents cellular respiration.
C6H12O6 +602
6 CO2 + 6H2O + energy
Which table lists all the atoms in reactants and products of cellular respiration?
Reactants 6 C 12 H 18 O
ΟΑ.
Products 6 C 12 H 18 O
Reactants 6 C 6H 2
Ов.
Products 6 C 12 H 120
Reactants 6 C 12 H 120
C.
Products 6 C 12 H 30
Reactants 6 C 12 H 18 0
D.
Products 1C6H 18 O

Please hurry

Answers

if you work it put you will get the 3rd one I think

(a) Give the H-C-O bond angle in methyl formate H-C-O bond angle methyl formate




(b) One dihedral angle in methyl formate relates the plane containing the O-C- O bonds to the plane y two structures of methyl formate: one in which this dihedral angle containing the Co-onds, identand the other in which it is 180 0° dihedral angle 80" dihedral angle.

Answers

Answer:

Explanation:

The bond angle is said to be the angle between two atoms near or around the same atom for a given covalent compound. However, a dihedral angle is known as the angle formed between two planes. Bond angles are usually planar while dihedral angles are interplanar.  

The diagram below shows the structure of each compound.

PRACTICE PROBLEM 3
Return to
choice
board
1C3H8+502 3C02 +4 H2O
What mass of O, is needed to react with 48.05 g C3H8?​

Answers

Answer:

Explanation:

?

Can someone help me thx asap

Answers

Answer:

solvent

Explanation:

the solvent is usually a liquid substance

The substance that is a larger proportion of a solution and surrounds the solute to dissolve it is called the solvent.

Which is a characteristic of diatoms?
whip-like tail
heterotrophic
multicellular
glass-like cell wall

Answers

Answer:

Glass-like cell wall

Explanation:

No tail, autotrophs, and single-cellular. Cell walls are transparent, do D is correct.

Answer:

glass-like cell wall, the guy above is right

Explanation:

took the test :)

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