A substance has a volume of 20 mL and a density of 2.5 g/mL. What is its mass? (M=DxV)

Answers

Answer 1

Answer:

41

Explanation:

mate u literally just have to substitute the values into ur formula. u would then get 20 times 2.5 which is 41


Related Questions

How many electrons will a neon (Ne) atom have when it has no charge?

Answers

Answer:

hope it helps you

Explanation:

Once one shell is full, the next electron that is added has to move to the next shell. So... for the element of NEON, you already know that the atomic number tells you the number of electrons. That means there are 10 electrons in a neon atom.

After eating a meal, blood sugar levels are elevated.The body secretes hormones to help absorb excess sugar into cells and return blood sugar levels to normal.This is an example of
1.excretion
2.regulation
3.synthesis
4.reproduction

Answers

I think is reproduction

2. regulation

it is controlling the blood sugar levels

How are the particles of matter affect its states as to solid, liquid and gas?

Answers

Explanation: In solids, the particles are tightly packed together. In liquids, the particles have more movement, while in gases, they are spread out. Particles in chemistry can be atoms, ions or molecules. It is important to understand the particle nature of matter.

Which properties of matter are independent of the amount of the material?

Answers

Answer:

Only physical properties, cause physical properties has to have mass, weight, volume, etc

In a given chemical reaction, the energy of the products is less than the energy of the reactants. Which statement is true for this chemical
reaction?
A Energy is absorbed in the reaction.
B.
Energy is released in the reaction.
О с.
There is no transfer of energy in the reaction.
D. Energy is lost in the reaction.

Answers

I think it may be B, because this reaction may have produced heat &/or light. I think energy could be decreased that way.. sorry I couldn’t be a better help but I hope this sort of gives you an idea ;w;

you'll have a bright future by doing this for me I promise ! and I'll brainlist doesn't have to be perfect drawing:)​

Answers

Answer:

sound wave

Explanation:

sorry i can't do a detailed light wave but i had the sound one already done for one of my classes so you're in luck!

An element has an atomic number of 76. The number of protons and electrons in a neutral atom of the element are _______

Answers

Answer:

the number of protons in neutral atom is 8 not sure I did it but I forgot the answer I think that's it

Living things with fewer than normal helpful bacteria in their guts can become infected more easily
because there is more food and space available for harmful bacteria.
O True
False

Answers

The answer is true hope this helps

What words come to mind when you hear the word Philosophy?

Answers

Answer:

The words I think of when I hear philosophies are knowledge and reasoning.

Explanation:

So, if you have seen other responses, you would see "love of wisdom." But, there is more to it. When someone says the philosophy usually, someone would think of knowledge or reasoning. When you reason, you reflect, learn, and form opinions using methods of philosophy. So when doing this, you can reason with someone. You could also have "reasoning" with an object or when having a conversation.

You can have an emphasis and an impact when knowing, supported with reasoning. Even though the definition of wisdom, the quality of having expertise, "knowledge" and good judgment; the quality of being wise, wisdom arises from wise-dom, and which is a synonym to philosophy. When your wise and have "knowledge" you, "know something."

When you think of philosophy, the study of the intellectual foundation of a department of knowledge or expertise, you assume that it's wise, or wise-dom, but no. Love of wisdom originates from, "The feeling of love in being wise." As a result, you could tell that philosophy is the love of being wise. Being wise has a reasoning behind it. There is a reason to be wise. People want to be smart and be intelligent for a reason. You want to be a unique person and want to have a justification in a section of experience.

When thinking of it, it's like you are studying knowledge. You are not practicing wisdom. You can't practice being a wise person. It comes with being a Christian or being in that culture, or whatsoever. But you can study knowledge. Each mindset comes with being or "knowing" something. When thinking about each decision, you have to have reasoning behind it.

So, when you consider philosophy, think of "the" philosophy, the roots of it. You have to have a reason to back it up, with reasoning and details. You become a person who displays knowledge. You do not show wisdom through a philosophy. With being wise, you only know certain things. With the information, you know it all. With reasons you don't just have back up you have everything.

Can someone help me with this please ASAP?

Answers

In order for clay to float, you need to stretch it out as far as possible. This increase in volume decreases the overall density of the clay, making it float. (increase surface area)

Colby wants to learn more about the feeding habits of ants.


What steps should Colby take to best study the feeding patterns of ants?

a. form a hypothesis, conduct an experiment, record data, make a conclusion
b. conduct an experiment, form a hypothesis, make a conclusion, record data
c. form a hypothesis, record data, conduct an experiment, make a conclusion
d. record data, form a hypothesis, make a conclusion, conduct an experiment

Answers

Answer:

a. form a hypothesis, conduct an experiment, record data, make a conclusion

Explanation:

Performing scientific investigations involved following the SCIENTIFIC METHOD, which is a rule or guideline followed in order to discover knowledge about natural phenomena. The scientific method has been divided into steps viz:

- Making observation/asking questions: In this case, the problem is HOW ANTS FEED.

- Formulating hypothesis: The hypothesis is a testable explanation given to solve the asked question.

- Testing hypothesis: The hypothesis must be able to be tested via conducting an experiment.

- Analyze result: The results of the test is recorded and analysed as data.

- Make conclusions: The conclusion either accepts or rejects the hypothesis depending on the result of the experiment.

Therefore, based on this; form a hypothesis, conduct an experiment, record data, make a conclusion are the steps Colby should take to best study the feeding patterns of ants

can someone answer this question

Answers

Answer:

there is only one electron in the outer shell of lithium.

Explanation:

i looked it up. ,(^w^)>

The current knowledge concerning cells is the result of the investigation and observations of many scientists. The work of these scientists forms a well accepted body of knowledge about cells. This body of knowledge about cells. This body of knowledge is an example of

Answers

The question is incomplete; the complete question is;

The current knowledge concerning cells is the result of the investigations and observations of many scientists. The work of these scientists forms a well-accepted body of knowledge about cells. This body of knowledge is an example of a

(a) hypothesis

(b) controlled experiment

(c) theory

(d) research plan

Answer:

theory

Explanation:

In the scientific method, every scientific investigation begins with observation. After observing the phenomenon, the researcher puts out an intelligent guess that explains his/her observation. This intelligent guess is known as a hypothesis.

This hypothesis is now subjected to carefully designed experiments which may prove or disprove the hypothesis. If the results of the study is well received among the scientific community, the hypothesis becomes a theory.

Hence, a well-accepted body of knowledge about any subject of study in science is an example of a theory.

differentiate homogeneous and heterogeneous mixtures

Answers

A homogeneous mixture is one in which its components are mixed in such a way that it is impossible to differentiate them with the naked eye.

The elements of a heterogeneous mixture are distinguishable with the naked eye and their distribution is not uniform.

Answer:

HOMOgeneous = Same/Alike

HETEROgeneous = Diversity/Different

In mixtures:

Homogeneous would be defined as the evenly proportion substance/materials placed throughout the sample, while heterogeneous is the maintain of separate materials/substances throughout the sample.

Never change a subscript to balance an equation
True or False

Answers

True!
When balancing equations, you can change the coefficient ( number in front) to balance the chemical equation

which is a mixture?
a. Red and blue marbles in the same container
b. A tin can that cannot be broken down into Simpler substances
c. A piece of iron reacting chemically with oxygen
d. hydrogen and oxygen atoms forming a molecule

Answers

Answer:

A-Red and blue marbles in the same container.

Explanation:

(Apex)

HEAT ONLY FLOWS UPWARD; TRUE OR FALSE?

Answers

Answer:

it would be false. It doesn't only flow upward

Explanation:

Where does DNA come from? ​

Answers

Answer:

The DNA can be found in the cell's nucleus and beside the DNA in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria.

Explanation:

Hope this helps!

Answer:

In eukaryotic cells, it is in the nucleus. In prokayrotic cells it is in the nuclei. It is made of chromosomes passed down from parents

Explanation:

Hope this helps, good luck!

How many moles would there be in 1.5x10^24 molecules of water?

Answers

Answer:

5.85 moles

Explanation:

Moles in (3.52 X 10^24) molecules of water. 3.52 x 10^24 molecules x `1mol/6.02 x 10^23 molecules = 5.85 moles of H2O.

How does water move between the hydrosphere

Answers

Answer:

Water moves through the hydrosphere in a cycle. Water collects in clouds, then falls to Earth in the form of rain or snow.

Answer:

Water moves through the hydrosphere in a cycle.

Explanation:

Hope it helps.

Doing science, and having a bit of trouble.
please help
thank you so much!

Answers

Each column is also called a group. The elements in each group have the same number of electrons in the outer orbital. As you keep counting the columns, you'll know how many electrons are in the outer shell.

Where can Earth's atmosphere be heated by conduction?

Answers

Answer:

in the troposphere

Explanation:

what element is found in group 6 and period 4? Based on its location, is the element more similar to tungsten or to iron?

Answers

the asnwer is berlinuim  become a power geek like me  plz itl help u

In a periodic table, there are seven periods and eighteen groups. The element found in group 6 and period 4 is similar to Tungsten.

Periodic table:

The elements are arranged in order of an increasing atomic number. They are placed in the respective groups and periods according to their properties and atomic number.

The element belonging to group 6 and fourth period is Chromium and this element is similar to Tungsten as they both belong to same group.

The elements belonging to same groups are chemically similar. Thus, the answer is Tungsten (W).

Find more information about Periodic table here:

brainly.com/question/15987580


What units do scientists use to measure temperature and time?

Answers

Answer:

Scientists commonly use two equivalent units of temperature, the degree Celsius and the kelvin.

Explanation:

give at least five insights that you learn from this lesson, as your way of recognizing the uniqueness of earth as a planet life

Answers

Answer and Explanation:

The lesson about the uniqueness of the earth allowed me to realize that the earth is the only planet that has drinking water and oxygen, thus allowing the existence of life on the planet and showing that we would not fully survive on another planet.

The lesson also shows that the earth is the only planet where rotation is capable of causing seasonal differences in different parts of the globe. This is important for several things, including food production and plant growth.

Another factor that shows the uniqueness of the land is its favorable temperature for life, allowing us to have water and to be able to live outdoors, for example. This factor is worrying, since the holes in the ozone layer have caused changes in this temperature.

I was also able to learn about the gravity of the earth, which is the only thing that allows us to do all the activities we do and allows us not to be launched into space. In addition, gravity has a strong influence on seas and agriculture.

Finally, I was able to learn about the tectonic plates, which provide the movement of our crust and influence in several geological processes.

how many elements are in c6h12o6

Answers

There are 3 elements in c6h12o6, they are; carbon, hydrogen, and oxygen. But there are multiple atoms of each element present! However, that does not change the fact that there are still only 3 elements

How is burning methane similar to burning magnesium?

Answers

They are both chemical reactions which are involving oxygen ...
I think !

Suppose Highlinium-308 can also undergo positron emission
to produce the new element Burienium. What is Burienium's atomic number?

Answers

Answer:

The atomic number of burienium will be 307.

Explanation:

During positron emission proton is converted into the neutron and one electron neutrino with positron is released. It means the atomic number will be reduce by one and atomic mass remain same.

For example:

²³Mg₁₂    →     ₁₁Na²³+ e⁺+ Ve

Similarly, when highlinium-308 undergoes positron emission the new element burienium is produced and the atomic number will be 307 while atomic mass remain same.

Properties of beta radiations:

Beta radiations are result from the beta decay in which electron is ejected. The neutron inside of the nucleus converted into the proton an thus emit the electron which is called β particle.

The mass of beta particle is smaller than the alpha particles.

They can travel in air in few meter distance.

These radiations can penetrate into the human skin.

The sheet of aluminium is used to block the beta radiation

When a police officer is trying to decide if a driver is speeding, what is his point of reference?a. The ground b. His car c. The speed limit d. All of the above

Answers

Answer:

C. The speed limit.

Explanation:

If the car was the point of reference then he would be looking at his car not the speed the car is going. If the ground was the reference then he would be looking at the ground and not how fast the car is going. So that means that the officer is determining how fast the car is going compared to the speed limit.

What if you broke off a piece of cement (or bread) so that it was only half the volume of the original piece? What would happen to
the mass?

Answers

Answer:

The mass is also half of the mass of the original piece

Explanation:

Recall that the volume of a substance is defined as mass/volume. The density of substances is a constant. Hence, if a break off a piece of cement or bread such that what remains is only half the volume of the original piece, the mass of the new piece must also reduce to half of the mass of the original piece so that the volume of the material will remain constant.

Hence the answer above.

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