Chemistry High School

Ill give brainlest to the one who answers right.

Answers

Answer 1

the answer would be h2o

Related Questions

HAAAAAALP MEEEEEEEEEEE

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Answer:

It would contain 10.

Explanation:

The atomic number: the number of protons.

Please answer quickly

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Answer:

a) II and III

is the correct

Viết các phương trình phản ứng dưới dạng phân tửvà ion thu gọn trong các trường hợp sau đây:a)CaCl2+ K2CO3b)Zn(OH)2+ KOH 

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God is the answer because he sucks balls respectfully

Help meeeeeeeeeeeeeee

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Answer:

Copper = Cu

Gold = Ag

Iron = Fe

Potassium = K

Cu
Ah
Fe
K
Those are the answers hope this helps

What chemical compound is produced as a result of photosynthesis?
a

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Answer: Specifically, plants use energy from sunlight to react carbon dioxide and water to produce sugar (glucose) and oxygen.

Explanation:

glucose

the overall chemical reaction for photosynthesis is: 6 CO2 + 6 H2O + light → C6H12O6 + 6 O.

Carbon Dioxide + Water + Light yields Glucose + Oxygen

yall help, i missed like a week
some of them are wrong, I need all of 1 and 2

Answers

Answer:

a. Azane

b. sulphur hexachloride

c.carbon tetrachloride

d. Carbon disulfide

e.Umbelliferone

f.Disilicon hexabromide

g. Dinitrogen trifluoride

wants to help?
it's agriculture science not chemistry

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Answer:

the jamaians need food to survive

Explanation:

how much mass is in a proton

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Answer:

1.673 x 10^-27 kg

Explanation:

1.67262 × 10−27 kg, which is 1,836 times the mass of an electron

Someone pls help me I will make you brain

Answers

Answer:

it is c greenhouse effect please mark me brainliest

Explanation:

Answer:

green house effect

Explanation:

The answer is green house effect.

The system containing all the muscles of the body especially those involved in movement CONSIST of the three types of muscle skeletal smooth and cardiac

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The muscular system is involved in movement and has skeletal, smooth, and cardiac muscles

how many barr bodies are found in a normal human female nucleus

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Answer:

One Barr body

Explanation:

Suppose a high-flying jumbo jet with a mass of 45,000 kg cruises at constant velocity when the thrust of its engine is a constant 80,000 N. What is the acceleration of the jet?

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Answer:

1.78 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

f is the force

m is the mass

From the question we have

[tex]a = \frac{80000}{45000} = \frac{80}{45} \\ = 1.77777...[/tex]

We have the final answer as

1.78 m/s²

Hope this helps you

Heat packs are used to relax muscles. Some heat packs contain iron in a small packet. To
activate this type of heat pack, you need to increase the pressure and introduce oxygen
to create iron(III) oxide which produces the heat needed for muscles to relax. This
reaction in an example of what type of reaction?

Answers

Heat packs are used to relax muscles. This reaction is an example of exothermic reaction.

What is exothermic reaction?

Exothermic reaction is defined as a reaction that is chemical in nature and is characterized by the release of energy in the form of heat and light.

It can also be defined as a thermodynamic process or reaction that releases energy from system to its surroundings.

Endothermic reaction is defined as the chemical reaction in which the reactants absorbs heat energy from the surroundings to form product.

Endothermic reaction can also be defined as a reaction in which the system absorbs energy from its surroundings in the form of heat.

Being endothermic enables us to live in cooler environments and regulate our body temperatures in order to fight infection.

Thus, heat packs are used to relax muscles. This reaction is an example of exothermic reaction.

To learn more about exothermic reaction, refer to the link below:

https://brainly.com/question/10373907

#SPJ5

who is considered the father of the periodic table

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Answer:

Dmitri Mendeleev

Explanation:

If you increase the force on an object, its acceleration increases. True or false

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Answer:

true

Explanation:

from Newton's second law of motion ,we can understand that acceleration of a body is directly proportional to the force applied on it and inversely proportional to its mass ,so as the force applied increase,the acceleration also increases

If a proton is added to the nucleus of germaium what out comes would acure

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When a proton is added to the germanium nucleus, then its atomic number becomes 33, which is the atomic number of arsenic.

HOPE THIS HELPS YOU!!!!

Would a 5-pound bag of iron nails be as dense as a single iron nail?

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Yes. It would be if all the nails are exactly the same.

Answer:

Yes

Explanation:

Boron has two naturally-occurring isotopes. Boron-10 has an abundance of 19.8% and actual mass of 10.013 amu, and boron-11 has an abundance of 80.2% and actual mass of 11.009 amu. What is the average atomic mass for all isotopes of boron?

A 10.0 amu

B 10.5 amu

C 10.511 amu

D 10.812 amu

Answers

Answer:

D) 10.812

Explanation:

Given:

The two isotopes of boron (B).

Boron-10 has an abundance of 19.8% and Boron -11 has an abundance of 80.2%

To find:

The atomic mass of europium.

Solution:

Mass of Boron-10 = 10.013 amu

The percentage abundance of Boron-10 = 19.8%

The fractional abundance of Boron-10 =0.198

Mass of Boron-11 = 11.009 amu

The percentage abundance of Boron-11= 80.2%

The fractional abundance of Boron-11= 0.802

The average atomic mass of Boron = A.M

A.M = Mass of isotope x Fractional abundance of isotope

= 10.013amu x 0.198 +11.009amu x 0.802 = 10.81u

Therefore, D) 10.812 amu is the atomic mass of boron.

Which of these statements is false?
A. Electrons have a negative charge
B. Electrons have a mass of 1 amu
C. The nucleus of an atom is positively charged
D. The neutron is found in the nucleus of an atom

Answers

Answer:

The answer is b

Explanation:

Hope it helps

b) electrons have a mass of 1 amu

electrons have a mass of 0 amu

What is a paper clip, a colloid? solution? or a suspension?

Answers

Answer:

I'm gonna guess it's a suspension

Explanation:

let me know if I'm wrong

A container contains three gases. If the partial pressure of carbon dioxide is 0.50 atm, the partial pressure of nitrogen is 0.30 atm, and the partial pressure of methane is 0.40 atm, what’s the total pressure inside the container?

Answers

Answer:

1.20 atm

Explanation:

Do not let chemistry questions SCARE you! The TOTAL means

ADD THEM UP.

You can do this without a scientific calculator :-)

0.50 +0.30 + 0.40 = 1.20 atm

______Is analyzed by qualitative methods

A. The identify of the poison used in a murder.
B. The amount of poison used in a murder.
C. The location of the poison used in a murder.
D. The method used by the suspect to kill the person.

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Answer:

A. The identify of the poison used in a murder.

Explanation:

In the fall, how does the high pressure area
affect the hurricane?

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Answer:

Hurricanes occur when ocean water warms during the spring, summer and early fall.

Explanation:

Warm air just above the water’s surface rises. The rising warm air creates a reduction in pressure at the surface, what meteorologists call a low-pressure area. Because nearby air is at a higher pressure, it will flow into the low-pressure zone.

https://www.sidmartinbio.org/how-does-a-high-pressure-system-affect-a-hurricane/

Someone pls help me I will make you brain

Answers

Answer:

the answer is A for this question

A I’m not sure mark me brainliest if I’m right

Please help. Thank you!
what is the electron configuration of uranium at its ground state (in order) AND noble gas configuration?

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Answer: Uranium is a chemical element with atomic number 92 which means there are 92 protons and 92 electrons in the atomic structure. The chemical symbol for Uranium is U. Electron configuration of Uranium is [Rn] 5f3 6d1 7s2. Possible oxidation states are +3,4,5,6.

Explanation:

Answer:

Electron configuration of uranium at its ground state: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6s6 5f3 6d1 7s2

Noble gas configuration: [Rn] 5f3 6d1 7s2.

Hòa tan hoàn toàn 1,93 gam hỗn hợp 2 kim loại Fe và Al vào dd HCl dư, sau phản ứng thu được m gam muối và 1,456 lít khí H2 ở đktc. Giá trị của m là:

Answers

Answer:

Sorry pal! Didn't understand your language.

Explanation:

If you have two pistons in a system, which exerts the larger force?

Answers

Answer:

The larger piston

Explanation:

(i just took the same test)

why do garden manure and compost fertilize the soil

Answers

gardens arent real the government is lying the world is a simulation

As the soil absorbs manure, nutrients are released. This enriches the soil, which in turn helps the plants. The most important benefit of using manure in the garden is its ability to condition the soil For instance, mixing manure with sandy soils helps to retain moisture levels.

14. An atom has 10 protons, 8 electrons, and 7 neutrons. What is the charge of the
atom and what type of ion is it?

Answers

Answer: the atom is a CATION (ion) of +2 charge.

Explanation:

The charge on an atom = # of protons - # of electrons

= 10 - 8

= +2

∴ the atom is a CATION (ion) of +2 charge.

An atom of an element with atomic number 48 and mass number 120 contains
A. 48 protons, 48 electrons, and 72 neutrons
B. 72 protons, 48 electrons, and 48 neutrons
C. 120 protons, 48 electrons, and 72 neutrons
D. 72 protons, 72 electrons, and 48 neutrons
Option 5

Answers

Answer:

Explanation:

proton remains same as the atomic number

electron remains same as the atomic number

Mass no.- atomic no. = Neutrons

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how long ago did sharpeville massacre occur i need to finish all my hw because ir my last day to do them FilipinoGrade 8Ang dalaga ng buying na langit at tumakas at nagtago mula hinata ng pangumanon,isang higante na may palamuti sa ulo na abot ang mga ulap.Bilang isang dalaga,mahihinuha mong________________________.A. May galit ang dalaga ng bohung na langit sa banata na Pangumanon.B. Natatakot ang dalaga ng buhong na langit sa binata ng Pangumanon.C. May ibang nangingibig sa dalaga ng buhong na langit at natatakot siya rito.D.Nais paglaruan ng dalaga ng bohung na langit ang damdamin ng binata Pangumanon. WILL MARK BRAINLIEST AND 50 PTS This table shows the minutes students spent studying for their science exam and the scores they received. SHOW YOUR WORKStudy time (min) 19 12 34 10 17 42 60 15 9 21 30 50Exam score 82 78 90 78 85 97 100 85 73 90 91 98Use a graphing calculator to model the data using a linear function. 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A student measures the mass of an object three times on a balance in order to calculate the objectsdensity. The recorded masses are 70.21 g, 64.55 g, and 74.70 g. The accepted value for the mass ofthe object is 70.21 g.a. Are these measurements accurate? Why or why not?b. Are the measurements precise? Why or why not?