Chemistry High School

Help please and thank you for who ever

Answers

Answer 1

Answer:the first one

Explanation:

Answer 2

Answer:

Ribosomes are found in both cells

Related Questions

The process of burning means to react a substance with:

Answers

it’s oxygen i’m pretty sure

I need uses of acid-base indicators

Answers

Answer:

to indicate the presence of acid or base in a body

What is true about the light shown above?

A. All of the light is refracted

B. All of the light is reflected

C. Some of the light is refracted, and some of the light is reflected

D. None of the light is refracted or reflected

Answers

Answer:

The answer is D. None of the light is refracted or reflected.

Explanation:

Just trust :)

Wines are produced from fermentation of crushed grapes. What causes the either white or red color of wine

Answers

Answer:

The cause of the color "white" in wine is because the grape's skin is removed before fermentation.

The cause of the color "red" in wine is because the grape's skin is still intact while fermentation

help<3
If a solid object is taken from Earth far into space, which of the following measurements of the object
will change the most?
A. density
B. mass
C. volume
D. weight

Answers

Answer:

D. weight

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Question:-

If a solid object is taken from Earth far into space, which of the following measurements of the object will change the most?

A. density

B. mass

C. volume

D. weight

Answer:-

option D. weight

Explanation:-

Because the gravity of the planet/object changes, the weight of the object changes when you move it away from the earth or place it on another planet.

However, the mass of the object remains the same regardless of whether it is on Earth or outer space.

The diagram represents an atom of an element key
e = electron = 4
n = neutron = 5
p = proton = 4
Which symbol gives this information?

Answers

Beryllium
Because it’s number 4 on the periodic table and the number of electrons = proton=atomic number

Which two statements are true for both compounds and mixtures?
A. They are made up of more than one type of atom.
B. Their particles all have the same chemical formula.
C. They can be separated into two or more elements.
D. Their particles are held together by chemical bonds.

Answers

Answer:

B and C

Explanation:

A. Their particles are held together by chemical bonds.

This option is incorrect for both compounds and mixtures. It is only true for Compounds.

B. They are made up of more than one type of atom.

This is correct. Both compounds and mixtures consists of different atoms of elements.

C. They can be separated into two or more elements.

This option is correct. Compounds are broken down into elements through chemical means.

D. Their particles all have the same chemical formula.

This is wrong. Mixtures do not have a chemical formula

BALANCED WORD EQUATION Aluminium carbonate + hydrochloric acid -->

Answers

Answer: 2Al+6HCl→2AlCl3+3H22Al+6HCl → 2AlCl3 + 3H2

Explanation:

• Describe evidence that convection cycles/cells exist within the Earth's core and how they connect to
sea floor spreading and subductio zones

Answers

Explanation:

Seafloor spreading and other tectonic activity processes are the result of mantle convection .Mantle conversion is the slow churning motion of Earth’s mantle convection carry heat from the lower mantle and core to lithosphere

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JWhat type of evidence is gathering information through your senses or using scientific tools?

Predictions
Results
Scientific research
Observations

Answers

Observations etc etc

Which statement best describes the difference between a substance with a pH of 2.0 versus a substance with a pH of 4.0?
a
(1 point)
O The substance with a pH of 2.0 would have 100 times as many hydrogen ions per volume of water.
o The substance with a pH of 4.0 would have 100 times as many hydrogen ions per volume of water.
O The substance with a pH of 4.0 would have twice as many hydrogen ions per volume of water.
O The substance with a pH of 2.0 would have twice as many hydrogen ions per volume of water.

Answers

Answer:

The answer is the first one.

Explanation:

The lower a pH level the higher the the number hydrogen ions present in the acid's container.

ph = - log(H)

4 = - log(H)

- 4 = log(h)

10^-4 = H+

1 * 10^-4 = H +

ph = - log(H)

ph = 2

- 2 = log(H)

10^-2 = H

1*10^-2 = h

Something the power - 2 is 100 times greater than something with the power of -4

Answer:

the guy above is correct

Explanation:

EASY QUESTION (PLEASE HELP THE INTERNET ISN'T SUCH A BIG HELP RIGHT NOW)
Things microscopes have helped scientists discover about cells.

Answers

Answer:

Again, Microscopes discovered a lot of things in biology like the prokaryotic cells, Bacteria and Archaea, aswell as parts of an organelle/cell.

A watch loses 0.15 sec/min, how many seconds are lost in 24 hours?

Answers

Answer:

0.15 sec/min = 9 sec/hour

9*24 = 216 seconds = 3.6 minutes

Explanation:

Answer:

216 Seconds

Explanation:

If every minute is 60 seconds than 60 multiplied by .15 is 9 Seconds Lost.

If every hour is 60 minutes compared to what we know than 24 hours multiplied by 60 is 1440 minutes.

Do the same math as before: 1440 x .15 = 216 Seconds

Question 1 (2 points)
Which option can be classified as a pure substance?

Question 1 options:

heterogenous mixture

solution

homogenous mixture

compound

Question 2 (2 points)
Law of conservation of mass states that:

Question 2 options:

matter is destroyed

matter does not change

matter is neither created nor destroyed

matter is created

Question 3 (2 points)
What is a property of bases?

Question 3 options:

all of the above

Sour taste

Slippery touch

Ability to form hydronium ions+

Question 4 (2 points)
Which property do solutions with low pH values have?

What does it mean to have a neutral pH? - Aseptic Health

Question 4 options:

have a -OH group

feels slippery

turns litmus paper blue

tastes sour

Question 5 (2 points)
How do the products of chemical reactions compare to their reactants?

Question 5 options:

The products often have completely different properties than the reactants.

The products are usually more toxic than the reactants.

The products usuallyhave more mass than the reactants.

The products usually have more atoms than the reactants.

Question 6 (2 points)
Which of the following is an example of a physical change?

Question 6 options:

Water freezing into ice.

A piece of wood burning.

A toy car rusting.

Zinc producing hydrogen gas when mixed with water.

Question 7 (2 points)
What might happen if you mixed a strong acid with an equally strong base?

Question 7 options:

You would see an explosive chemical reaction.

The base would destroy the acid.

You'd wind up with a pH-neutral salt and water.

The acid would destroy the base.

Question 8 (2 points)
In the equation shown, what are the reactants?

2H2+O2àH2O

Question 8 options:

Hydrogen and oxygen molecules (2H2 and O2 )

Ice crystals

Hydrogen atoms (H)

Water molecules (H2O)

Question 9 (2 points)
Which phrase most accurately describes a chemical change?

Question 9 options:

A change in form

A change in taste

A change on the molecular level

A change in appearance

Question 10 (2 points)
What does it mean when there is a physical change?

Question 10 options:

A new substance has been formed.

Matter has changed from one substance into a new substance.

Matter has changed size, shape or form

Matter has changed on the molecular level.

help pls ill give 20 points!

Answers

Answer:

1) Compound

2) Matter is neither created nor destroyed

3) All of the above

4) Turns litmus paper blue

5) The products often have completely different properties than the reactants.

6) Water freezing into ice

7) You'd wind up with a pH-neutral salt and water.

8) Hydrogen and oxygen molecules (2H2 and O2 )

9) A change on the molecular level

10) Matter has changed size, shape or form

Answer:

compoundmatter is neither created nor destroyedSlippery touchtastes sourThe products often have completely different properties than the reactants. Water freezing into ice. You'd wind up with a pH-neutral salt and water. Hydrogen and oxygen molecules (2H2 and O2 ) A change on the molecular level Matter has changed size, shape or form

Explanation:

2NH3(aq) + H2SO4 (aq) ---> (NH4)2SO4(aq)

Ammonia reacts with sulfuric acid to give the fertilizer ammonium sulfate.

Matt is conducting an experiment where he compares the properties of water and
lemonade. The first stage of the experiment is focusing only on the physical properties of?

Answers

Answer:

sitric acid from lemon

Explanation:

there

The first stage of the experiment is focusing only on the physical properties of acidic property.

What is physical property?

A physical property would be any quantifiable attribute whose value describes the condition of a physical system. Changes in a system's physical attributes are able to characterize its transitions between brief states. Physical attributes are sometimes known as observables.

Physical characteristics are frequently classified as intense or extensive. An intense property is independent of the system's size or extent, as well as the amount of material in the item, whereas an extended property has an additive link. The first stage of the experiment is focusing only on the physical properties of acidic property.

Therefore, the first stage of the experiment is focusing only on the physical properties of acidic property.

To learn more about physical property, here:

https://brainly.com/question/29775585

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Did you know that
1-7=0

Answers

Answer:

No I didn’t

Explanation:

I never knew that this helped me a lot thanks

what is solubility?

Answers

Answer:

the ability to be dissolved, especially in water.

Explanation:

What is friction? A _______ between an object and the _______ it's moving over.

Answers

Answer:

A force between an object and the surface it's moving over.

Explanation:

hope this helps. . . <3

good luck! uωu

Chlorine and oxygen form many different compounds, including CIO, and Cl2O3. How do the names of these compounds differentiate one chlorine oxide from another?

Answers

Answer:

We can mix two compounds and create a third that bears little resemblance to its parents. For instance, by mixing two parts of hydrogen gas with one of oxygen - liquid water is formed. We should not be misled by the fact that chlorine and chlorine dioxide share a word in common. The chemistries of the two compounds are completely different.

Chlorine and chlorine dioxide are both oxidizing agents (electron receivers). However, chlorine has the capacity to take in two electrons, whereas chlorine dioxide can absorb five. This means that mole for mole, ClO2 is 2.6 times more effective than chlorine.

If equal, if not greater importance is the fact that chlorine dioxide will not react with many organic compounds, and as a result, ClO2 does not produce environmentally dangerous chlorinated organics. For example; aromatic compounds have carbon atoms arranged in rings and they may have other atoms, such as chlorine, attached to these rings, to form a chlorinated aromatic - a highly toxic compound that persists in the environment long after it is produced.

Chlorine dioxide's behaviour as an oxidizing agent is quite dissimilar. Like ozone, the predominant oxidation reaction mechanism for chlorine dioxide proceeds through a process known as free radical electrophilic (i.e. electron-attracting) abstraction rather than by oxidative substitution or addition (as in chlorinating agents such as chlorine or hypochlorite). This means that chlorinated organic compounds such as THMs and HAAs are not produced as a result of disinfection using chlorine dioxide

Hope this helps, have a nice day! :D

The way that the names of these compounds show that the Chlorine oxides are different is by making reference to the number of individual molecules in the compound.

How are the chlorine oxides differentiated?

The number of chlorine and oxygen molecules in each compound are used to name the compounds which ensures that they are differentiated.

ClO₂ is called "Chlorine Dioxide" which shows that there are two Oxygen atoms.

Cl₂O₃ is called "Dichlorine Trioxide" which shows that there are two Chlorine molecules and 3 Oxygen molecules.

Find out more on Chlorine oxides at https://brainly.com/question/25937152.

Charlotte has some copper sulfate solution. She wants solid copper sulfate. Which technique should she use?

Answers

Answer:

She should use the crystalization technique

Explanation:

First, the copper sulfate solution should be filtered to clear any impurities.

By heating the solution of copper sulfate on a china dish, the excess water in the solution evaporates and leaves behind a saturated solution of copper sulfate.

Upon cooling this saturated copper sulfate solution, crystals of solid copper sulfate will be formed on the china dish.

In solid form, copper sulfate appears in triclinic-shaped crystals.

Una pieza cúbica de 34 mm de arista tiene una masa de 310,5 g. Determina su densidad, expresada en kg/m3

Answers

Answer:

Explanation:

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