Chemistry High School

Please help me with this question.

Please Help Me With This Question.

Answers

Answer 1

Answer:

B or c

Explanation:

It might bee

Related Questions

BRAINLIEST ANSWER!!!Nitrogen has three occurring Isotopes: Nitrogen-13, Nitrogen-14, Nitrogen-15. Which isotope
is the most abundant?
Please also explain why:D

Answers

Answer:

N-14 is more abundant in nature because it is closest to the average atomic mass of 14.007. The average atomic mass is a weighted average which takes into account not only the mass but the abundance of a particular isotope.

Explanation:

hope this helped:)

Which nitrogen base sequence is the partner of C-A-T-C-G-A?

Answers

Answer:

G-T-A-G-C-T

this is the answer

G T A G C T is correct. An analogy I used to rmbr this more clearly and off by heart was “The apples (A) in the trees (T) and the cows (C) in the garage (G)”.

What 3 things drive the pressure of a gas up

Answers

Answer:

Density of the Gas

Explanation:

More molecules mean more hits against the container walls. Increasing the number of particles means you have increased the density of the gas. This third factor is part of the ideal gas law, which explains how these three factors -- temperature, volume and density -- interact with each other.

How does climate change
relate to energy?

Answers

Also since climate change is caused by green house gasses and the sun a lot people have been using solar energy, which is a cleaner type of energy captured from the sun.

1) how can you make a solution more concentrated

Answers

Explanation:

solvent bc when you remove it it becomes more concentrate

What is unique about the metal mercury?

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Mercury is the only metal that is a liquid at standard temperature and pressure.
—Mercury has a unique electron configuration which strongly resists removal of an electron, making it behave similarly to noble gas elements.
—As a result, mercury forms weak bonds and is a liquid at room temperature.
—Mercury dissolves to form amalgams with gold, zinc, and many other metals.

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 !

Suggest 2 ways that chemical pollutants could be carried far from their sources?

Answers

Answer:

1.Transport through surface water

2.Transprt through soil

Explanation:

I learned it from my 7th- grade science teacher and suprisingly I still t it. Hope this helps.

how does a drupe fruit differ from a hesperidum fruit. ​

Answers

Answer:

hi

Explanation:

Answer:

Fleshy Fruits: All of most of the ovary wall (pericarp) is soft or fleshy at maturity. ... partitions, juicy seed vesicles, and a leathery exocarp similar to a hesperidium. ... This is a very common dry fruit found in many different plant families.

Explanation:

Energy of vibrating particles is....
electrical energy

thermal energy

sound energy

mechanical energy

Answers

your answer would be sound energy

Explanation:

my brain

How does Earth's rotation affect ocean currents?

Lesson 2.09

Question 9 options:

It causes them to flow in a curved path


It has no affect


It causes them to flow from east to west


It causes them to flow from north to south

Answers

Answer:

Our planet's rotation produces a force on all bodies moving relative to theEarth. ... The force, called the "Coriolis effect," causes the direction of winds and ocean currents to be deflected.

Explanation:

Earth's rotation affect ocean currents because: A. It causes them to flow in a curved path.

What is Earth rotation?

Earth rotation can be defined as the amount of time that is taken by planet Earth to complete its spinning movement about an orbital axis.

This ultimately implies that, Earth rotation refers to the time taken by earth to rotate once on its axis. Also, a spinning movement of the Earth on its axis takes approximately 24 hours to complete with respect to the Sun and it result in an effect called Coriolis.

In conclusion, Earth's rotation affect ocean currents because it causes them to flow in a curved path due to Coriolis effect.

Read more on Coriolis effect here: https://brainly.com/question/22699603

how many miles will a person run an 800 km race?

Answers

Answer:

uhh its 497 miles

Explanation:

A mixture of metals with properties different than the metals by themselves is called a(n) __________.

Answers

Answer:

Alloy

Explanation:

how many mililiters is 0.55 L

Answers

Answer:

It's 550 milliliters.

Explanation:

I hope this helps.

A car accelerates from 20 m/s to 40 m/s in 4 seconds. What is the car’s acceleration?

Answers

Answer:

40 - 20 = 20

20/4 = 5m/s

The difference in velocity divided by the rate = acceleration.

Are two clear liquids mix to create a “chunky” solid a chemical of physical change? Why?

Answers

Answer:

Well i know that a chemical change is somthing that can not be undone.

This however is a physical change let me explain.

Even though you mixed two chemicals together to create a new substance does NOT mean it is a chemical change. This however is kinda like a water. You can turn water into a ice cube that does not mean it changed what the water is made out of it just changed the form of the water. Kinda like this. A chemical change would be an example of buring a log once that log has turned into ashs it will never be the log it was before.

Explanation:

Each family in the periodic table has its own characteristic properties based upon its number of valence electrons.

True or False

Answers

The correct answer is True

Which of the following is an example of mutualism?​

Answers

Answer:The relationship which is between bacteria and ungulates with the intestine is or good example of mutualism. Mutualism plays an important role in ecology. We can say that if we measure the exact fitness what we get as a benefit is a mutualistic relationship.example of a mutualistic relationship is that of the oxpecker (a kind of bird) and the rhinoceros or zebra. Oxpeckers land on rhinos or zebras and eat ticks and other parasites that live on their skin. The oxpeckers get food and the beasts get pest control.

Explanation:

hope this helps have a nice night❤️❤️❤️❤️

Explanation:

a human uses dog to protect a flock of sheep

blance: Mg + HNO2 → Mg(NO2)2 + H2

Answers

Explanation:

Mg + 2HNO2 → Mg(NO2)2 + H2

Answer:

Mg + 2HNO2 → Mg(NO2)2 + H2

Explanation:

How is space like a vacuum?​

Answers

The vacuum of outer space is not caused by the expansion of the universe, but is caused by gravity. ... There would still be things like vacuum fluctuations, gravity, and dark matter, which can't be sucked out. With that said, outer space is very close to empty compared to earth's atmosphere.

The process plants use to make sugar for food

Answers

Answer:

PHOTOSYNTHESIS!

Explanation:

When liquid water evaporates to gaseous water
1)the water releases energy to the surroundings.
2)particles of hydrogen and oxygen recombine to form H20.
3)the water particles are arranged in an orderly pattern.
4)the water absorbs energy from the surroundings.

Answers

Answer: liquid water 2

Explanation:

I don't understand this problem
?Mg+?N2=?Mg3N2​

Answers

Answer:

Magnesium nitride, which possesses the chemical formula Mg3N2, is an inorganic compound of magnesium and nitrogen. Moles H2O = 75.0 grams / 18.02 g/mol. This reaction is used to prove that air contains nitrogen gas. Which equation would have the same coefficients in the same order as 2CO2 + 3H20 → C2H6O + 3O2?

Explanation:

Hopefully this helps :)

Brainiest please I need 5 more

Answer:

yeah im only answering so she can get brainliest

Explanation:

i miss flirting at school, can anyone help ;)

Answers

Answer:

Don't worry school's will re-open in August 2021. ._.

Explanation:

i think everyone does. so i'll help you

what is the density of a small block of wood with a mass of 35g and a volume of 70 cm3

Help plz

Answers

Answer:

The density of the wood is 0.5 g/cm³

Explanation:

To calculate density you need to use the formula D = M/V

D = Density

M = Mass (in grams)

V = Volume (in cm³ for solids and mL for liquids)

So, just plug in your given values: D = 35 g ÷ 70 cm³ = 0.5 g/cm³

Voila, you just calculated the density of that piece of wood!

PLZ GIVE ME ANSWERS WITH WORK I WILL GIvE YOU A BRain LIST PLZZZZZ

49. Carbon-14 has a half-life of 5,730 years. If a sample contained 80 mg originally, how much
is left after 17,190 years?

50. The half-life of cobalt-60 is 5.26 years. If 100 grams are left after 15.78 years, how many
grams were in the original sample?

Answers

Answer:

i only found the 49, hope it still helps, mate

49. In this question (t½) of C-14 is 5730 years, which means that after 5730 years half of the sample would have decayed and half would be left as it is.

After 5730 years ( first half life) 70 /2 = 35 mg decays and 35 g remains left.

After another 5730 years ( two half lives or 11460 years) 35 /2 = 17.5mg decays and 17.5 g remains left .

After another 5730 years ( three half lives or 17190 years) 17.5 /2 = 8.75mg decays and 8.75g remains left.

after three half lives or 17190 years, 8.75 g of C-14 will be left.

When iron (iii) oxide, Fe2O3, and aluminum are heated together at a high temperature, iron (Fe) and aluminum oxide (Al2O3) is formed
1.What is the meaning of the symbol (iii) in iron (iii) oxide?

2.Write a balanced equation for this reaction

Answers

The three percenters, also styled 3 percenters, 3%ers and III%ers are American and Canadian far-right anti-government.

Consider the following reaction:
A + B C + D + heat

If this reaction is first allowed to reach equilibrium, the concentration of substance D will be further increased by then (choose one best answer)

(A) removing some A.
(B) removing some B.
(C) removing some C.
(D) heating the reaction
(E) none of the above

Answers

Do you know why I think c it’s because b and c are combined so removing part of c is ok

WILL GIVE BRAINLIEST AND 20 POINTS How many grams are in 2.36 L of neon gas

Answers

Answer:

2.088464 grams.

Explanation:

The density of neon is 0.9002 g/L. Multiplying this value by the number of liters gives how many grams of neon it contains.

0.9002(2.32) = 2.088464

The charge of the atom is _______ because there are ______ numbers of and______ in an atom.

Answers

Answer:

see below

Explanation:

the charge of the atom is neutral because there are equal numbers of protons and electrons in an atom.

hope this helps

please mark

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