Letter C shows that some of the heat rising from the earth's surface is trapped by gases in the atmosphere and reflected back to earth. This is known as what?





Question 3 options:

Coriolis Effect


Solar Flares


Green House Effect


Windshield Effect

Answer:

dude your handwriting!!!

Answer:

a because it help in protecting disease

Answer:

We know that in the decay process the sum of molecular number as well as molecular weight should be constant.

The following three reaction are as follows

1 .

Explanation:

Convection currents are largely influenced by air temperature. A low-pressure area is produced when air is heated because it becomes less dense and rises.

For instance, the air above the Earth heats and rises as its surface warms from the sun. This air may continue to rise while cooling and producing cumulus clouds if the conditions allow.

Climate-affecting wind patterns are driven by convection currents. Convection currents are used to shift air masses. There are two different kinds of air masses: warm and cold. From higher latitudes to lower latitudes, cold air masses travel.

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The equation of reacting ammonium chloride with calcium nitrate will be: [tex]Ca(NO3)_2(s) + 2NH_4CI(s) --- > 2N_2O(g) + CaCl_2(s) + 4H_2O(g)[/tex]

They are reactions involving chemical reactants.

Ammonium chloride, in solid form, will react with calcium nitrate, also in solid form to produce dinitrogen oxide gas, solid calcium chloride, and water vapor.

The equation of the reaction is represented as follows:

[tex]Ca(NO3)_2(s) + 2NH_4CI(s) --- > 2N_2O(g) + CaCl_2(s) + 4H_2O(g)[/tex]

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Answer:

Anaemia

Explanation:

Symptoms: fatigue, skin pallor, shortness of breath, lightheadedness, dizziness, or a fast heartbeat.

Answer:

I think it's A and C. Please tell me if I am wrong.

Explanation:

Answer:

Alright so I did this quiz a while ago it's A and C now could i have brainliest?

Explanation:

Answer:

i dont get it

Explanation:

im small brain and only in 5th grade

Answer:

Explanation:

The heat associated with the reaction (qrxn, in KJ) when 4.85 grams of H₂ is produced is +693.55 KJ

2H₂O → 2H₂ + O₂  ΔH°rxn = +572 KJ

Molar mass of H₂ = 2 × 1 = 2 g/mol

Mass of H₂ from the balanced equation = 2 × 2 = 4 g

SUMMARY

From the balanced equation above,

When 4 g of H₂ is produced, 572 KJ of heat where needed.

From the balanced equation above,

When 4 g of H₂ is produced, 572 KJ of heat where needed.

Therefore,

When 4.85 g of H₂ is produced = (4.85 × 572) / 4 = +693.55 KJ of heat will be required.

Thus, +693.55 KJ of heat is required for the reaction.

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Answer:

answers below

Explanation:

Lithosphere/ Crust- made of large plates that move, average thickness is 30 km, average temperature is 25 degrees Celsius

Inner Core- made of solid iron, 1,200 km thick, 7,000 degrees Celsius

Outer Core- made of a dense liquid of iron and sulfur, 2,250 km thick, 4,000 degrees Celsius

Lower Mantle- made of solid rock, 2,200 km thick, 3,000 degrees Celsius

Asthenosphere/ Upper Mantle- made up of solid rock that flows due to plasticity, 720 km thick, 850 degrees Celsius

Answer:

International Union of Pure and Applied Chemistry (IUPAC) justified ways how to name organic compounds [ hydrocarbons ].

Oxygen has only a molecular name which is dioxide

Answer:

15.75 J

Explanation:

Potential energy

= mgh

= 3,500 g × 10 m/s² × 0.45 meters

= 3.5 kg × 4.5 m²/s²

= 15.75 J

Answer:

Below

Explanation:

2HCl + K2CO3 -> 2KCl + CO2 + H2O

Answer:

It’s A

The indivisibility of an atom was proved wrong: an atom can be further subdivided into protons, neutrons and electrons. However an atom is the smallest particle that takes part in chemical reactions. According to Dalton, the atoms of same element are similar in all respects.

Answer:

Covalent Bonds are formed when two non-metals share electrons

Hope this helps

Answer:

d

Explanation:

il answer in comments if you brainly me

The concentration of H2SO4 is  0.176 M. The number of moles of H2SO4 is 0.0165 moles.

The equation of the reaction is;

2KOH(aq) + H2SO4(aq) ------> K2SO4(aq) + H2O(l)

The number of moles of KOH = 1.85 g/56 g/mol = 0.033 moles

concentration = number of moles /volume

volume = 200 cm3 or 0.2 L

concentration of KOH = 0.033 moles/0.2 L = 0.165 M

From the titration formula;

CAVA/CBVB =na/nb

CA = concentration of acid

VA = volume of acid

CB = concentration of base

VB = volume of base

na = number of moles of acid

nb = number of moles of base

Making CA the subject of formula;

CA = CBVBna/VAnb

CA = ?

CB = 0.165 M

VA =  9.35 cm3

VB = 20.0 cm3

na = 1

nb =2

CA = CBVBna/VAnb

CA = 0.165 M ×  20.0 cm3  × 1/9.35 cm3 × 2

CA = 0.176 M

The concentration of sulphuric acid is 0.176 M

From the reaction equation;

2 moles of KOH reacts with 1 mole of H2SO4

0.033 moles of KOH reacts with 0.033 moles ×  1 mole/2 moles

= 0.0165 moles of H2SO4

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Answer:

That would be 2.51293615

Explanation:

1 liter is equal to 0.264172 gallons.

What you would need to do is, multiply the total number of liters, which in this case is 9.5125, by 0.264172.

9.5125 x 0.264172 gets you 2.51293665.

I hope this helps! :)

Molarity as Stoikiometri

Equatuions od Molarity :

M = m/Mr × 1000/V

Mr Lithium Dichromate (Li2CrO4)

= Ar Li (2) + Ar Cr + Ar O (4)

= 7 (2) + 52 + 16 (4)

= 14 + 52 + 64

= 130 g/mol

Molarity

= m/Mr × 1000/V

= 19.5 g/130 g/mol × 1000/95 mL

= 0.15 mol × 10.53 /L

= 1.5795 mol/L

So, the molarity of the solution is 1.5795 mol/L

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Answer:

The particle model does not take into account: the size and shape of particles. the space between particles.

The weakness of particle theory are:

it is a part of kinetic theory which states that all matter consists of very small particles which are constantly moving or in a continual state of motion.

Therefore,  lack of space between particles and size of particles are the limitations of particle theory.

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Answer:

2 electrons

8 electrons

8 electrons

1 electron (just count in the rings for these ones)

19 protons (it says "P=19" in the middle. The P stands for Protons)

K (it's from Latin medieval Latin "kalium")

39 (add proton and neutron amounts to get the approximate atomic mass--electrons are negligible)

Explanation:

The (15-35-15) number on a bag of fertilizer is calculated by an outdated method.  Using the knowledge of the old methods, the number of moles of phosphorus found in 10.0 grams of phosphorus is 0.05 mole.

The (15-35-15) number on the bag of fertilizer is used for:

Thus, in a 100-gram bag of fertilizer, there are 35 grams of phosphorus pentoxide P₂O₅.

∴

To determine the number of moles of 10 grams of phosphorus pentoxide in (15-35-15) bag of fertilizer, we have:

[tex]\mathbf{=10 \times \dfrac{35}{100} \ grams \ of \ P_2O_5}[/tex]

= 3.5 grams of P₂O₅

Recall that:

[tex]\mathbf{Number of moles = \dfrac{mass}{molar \ mass}}[/tex]

∴

[tex]\mathbf{Number of moles = \dfrac{3.5\ g}{ 142 \ g/mol}}[/tex]

[tex]\mathbf{Number of moles = 0.0246 \ mol}[/tex]

Provided that 1 mole of P₂O₅ harbors 2 moles of phosphorus;

Then;

The number of phosphorus present in 10.0 grams of (15-35-15) fertilizer is:

= 0.0246 moles × 2

= 0.0492 moles

≅ 0.05 moles

Therefore, we can conclude that the number of moles of phosphorus found in 10.0 grams of  (15-35-15) bag of fertilizer is 0.05 moles.

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Answer:

location a

Explanation:

Answer:

Location B

Explanation:

Answer:

10 moles of sodium chloride

Explanation:

[tex]\sf{}[/tex]