organs are directly made up of what lower level of cellular organization

Answer:

The mass percentage of water of crystallization in washing soda is 62.9 %. But the molar mass of Na2 CO3 • 10H2 O is 286.1412 g/mol and the Na2CO3 • 10H2O % by mass H2O.

SO your full answer is 286.1412 g/mol

Explanation:

plz brian list

Answer:

c

Explanation:

troposphere is the answer

Answer:

121.1g

Explanation:

First, we need to convert the number of molecules of NaCl to moles (n) by dividing by Avagadro number

That is, n = number of molecules ÷ 6.02 × 10²³

n = 1.25 X 10²⁴ ÷ 6.02 × 10²³

n = 1.25/6.02 × 10^ (24-23)

n = 0.207 × 10¹

n = 2.07moles

Using the formula; mole = mass ÷ molar mass

Molar mass of NaCl = 23 + 35.5 = 58.5g/mol

mass = molar mass × mole

mass = 58.5 × 2.07

mass = 121.1g

Explanation:

3. 2AlBr3 + 3k2SO4----------> 6KBr + Al2(SO4)3

Answer:

V₂ = 1326.62 L

Explanation:

Given that,

Initial volume, V₁ = 1800 L

Initial temperature, T₁ = 35°C = 308 K

Final temperature, T₂ = -46°C = 227 K

We need to find the final volume of the blimp. The relation between volume and temperature is given by :

[tex]\dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}\\\\V_2=\dfrac{V_1T_2}{T_1}\\\\V_2=\dfrac{1800\times 227}{308}\\\\V_2=1326.62\ L[/tex]

So, the final volume of the blimp is 1326.62 L.

Answer:

Ores mined from shields.

Explanation:

Ores mined from shields are the source from which we get the history of Precambrian rocks. The Ores from shield experience the Precambrian era so that's why its rocks provides information about that era. The Precambrian supereon is the division of the geological time scale which is the first and longest stage in the history of the Earth which also includes the Hádic, Archaic and Proterozoic eons.

Answer:

i. Sobolo is a Ghanian drink that is produced from red hibiscus flower that has an average pH of 6.7

It contains cyanidin and anthocyanins, which is a red pigment that is red in an acidic medium and changes green when introduced in a basic medium that has a high pH

The pH at the rectum of the digestive system = 5 to 8 (Slightly basic)

Therefore, what made the stool of Akosua green is that the sobolo drink changes to green in basic solution

ii. The stool which appeared green because she took sobolo turn into bright red upon mixing with the acidic WC water because of the presence of anthocyanins in sobolo, it turns red in an acidic medium

iii. Sobolo which turns green, or blue in a basic medium and red in an acidic medium can be used as a litmus solution to test the pH of a given substance

Explanation:

Sobolo or soobolo in Ghana is a name for the Hibiscus tea or tisane, which is made from calyces of the hibiscus plant, and has a sour (tangy) taste and appears bright red in color

Answer: The new concentration of a solution of [tex]CaSO_{3}[/tex] is 0.2 M 10.0 mL of a 2.0 M [tex]CaSO_{3}[/tex] solution is diluted to 100 mL.

Explanation:

Given: [tex]V_{1}[/tex] = 10.0 mL,      [tex]M_{1}[/tex] = 2.0 M

[tex]V_{2}[/tex] = 100 mL,           [tex]M_{2}[/tex] = ?

Formula used to calculate the new concentration is as follows.

[tex]M_{1}V_{1} = M_{2}V_{2}[/tex]

Substitute the values into above formula as follows.

[tex]M_{1}V_{1} = M_{2}V_{2}\\10.0 mL \times 2.0 M = M_{2} \times 100 mL\\M_{2} = 0.2 M[/tex]

Thus, we can conclude that the new concentration of a solution of [tex]CaSO_{3}[/tex] is 0.2 M 10.0 mL of a 2.0 M [tex]CaSO_{3}[/tex] solution is diluted to 100 mL.

Answer:

103.9 KPa

Explanation:

From the ideal gas equation;

PV=nRT

From the parameters given;

P= ?

T=250 K

V= 60L

n=3

R=0.082 atmLK-1mol-1

P= nRT/V

P= 3 × 0.082 × 250/60

P= 1.025 atm

1 atm=101325 pascals

1.025 atm = 1.025 atm × 101325 pascals/1atm

= 103.9 KPa

Answer:

103.9kPa

Explanation:

To solve this question we must use the equation:

PV = nRT

P = nRT / V

Where P is pressure in atm

n are moles of the gas = 3mol

R is gas constant = 0.082atmL/molK

T is absolute temperature = 250K

V = 60L

P = 3mol*0.082atmL/molK*250K / 60L

P = 1.025atm

As 1atm = 101.325kPa

1.025atm * (101.325kPa / 1atm) = 103.9kPa

Answer:

A. transport

Explanation:

yan po sana makatulong

Answer: I think it's 1 ATM and 0 F

Explanation:

Answer: 2 and 3

Explanation:II and III

Answer:

D, The volume will be multiplied by a factor of 4

Explanation:

First find the height

V = π(r^2)h

Plug in what we know

83 = π(3^2)h

83 = π(9)h

83  = (9π)h

9[tex]\pi[/tex] = 28.27

83/28.27 = (28.27)h/28.27

h = 2.94

Then find the volume of the new can by doubling the radius

3 x 2 = 6

r = 6

V = π(r^2)h

V = π(6^2)2.94

V = π(105.84)

V =332.51

For the first one, they rounded to the nearest whole #, so let's do the same.

V = 333

Then divide 333 by 83 to get 4

Therefore, the volume will be multiplied by a factor of 4

Answer:

Mycelium is a group of hyphae which are fungus.... these are like roots in structure

Answer:

A mycelium is the vegetative part of a fungus, consisting of a network of fine white filaments

Explanation:

Answer:

Molar mass of H3PO4  = 97.99 g/mol (Approx.)

Explanation:

Find:

Molar mass of H3PO4

Given;

Molar mass of H = 1.0079 g/mol

Molar mass of P = 30.974 g/mol

Molar mass of O = 15.999 g/mol

Computation:

Molar mass of H3PO4  = (1.0079)(3) + 30.974 + 15.999(4)

Molar mass of H3PO4  = 3.0237 + 30.974 + 63.996

Molar mass of H3PO4  = 97.9937

Molar mass of H3PO4  = 97.99 g/mol (Approx.)

Answer:

The above answer is correct

Explanation:

I took the test

Answer:3)date geological formations

Explanation:

The ratio of the mass of U-238 to the mass of Pb-206 can be used to date geological formations.

Radioactive elements have unstable nucleus and they can be used for dating.

The ratio of the amounts of U 238 and Pb 206 in a rock sample enables the age of the rock to be estimated using the technique of radiometric dating.

Thus, the ratio of the mass of U-238 to the mass of Pb-206 can be used to date geological formations.

Learn more about radiometric dating here: https://brainly.com/question/8831242

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Answer:

Radiation refers to the emission of energy in rays or waves. Heat moves through space as energy waves. It is the type of heat one feels when sitting in front of a fireplace.

Explanation:

Answer:

since an oxygen atom normally has 8 protons and 8 electrons, this ion has 10 electrons (-10 charge) and 8 protons (+8 charge) giving it a charge of -2 (-10 + 8 = -2).

Explanation:

Answer:

The molecular formula for aspartame is C14H18N2O5, and its molar mass is about 294 g/mol. 1.2 g / 294 g/mol = 4.08 X 10-3 moles aspartame. Since each mole of aspartame has 2 moles of nitrogen, you have 8.16 X 10-3 moles of N in your 1.2 grams of aspartame.

Explanation:

Answer:

height(h)=10 m

acceleration due to gravity (g)=10 m/s^2

mass (m)=?

potential energy=67

or,mgh= 67

or,m×10×10=67

or,m=67/100

or,m=0.67 kg

Therefore,m= 670 grams

Answer:

[tex]n_{N_2}=0.00369molN_2[/tex]

Explanation:

Hello there!

In this case, by firstly setting up the described chemical reaction, we are able to write:

[tex]2NO(g)+2H_2(g)\rightarrow N_2(g)+2H_2O(g)[/tex]

Thus, given the pressure (convert to atm), volume and temperature (convert to K) we can calculate the moles of NO:

[tex]n=\frac{PV}{RT}\\\\n=\frac{200.00/101.325atm*0.090L}{0.08206\frac{atm*L}{mol*K}*(20.0+273.15)K} \\\\n=0.00738molNO[/tex]

Next, we use the 2:1 mole ratio of NO to N2 to obtain the moles of nitrogen gas that will be produced:

[tex]n_{N_2}=0.00738molNO *\frac{1molN_2}{2molNO} \\\\n_{N_2}=0.00369molN_2[/tex]

Regards!

Answer:

d

Explanation:

from you know the atomic number it should be easy to find

To determine the molar mass of an element, one must know the element's atomic number​. Therefore, option D is correct.

An element's atomic number (Z) is the number of protons in the nucleus of each atom of that element. This means that the number of protons is the feature that distinguishes each element from all others. Elements differ based on their atomic number.

Because the combined masses of protons and neutrons account for nearly all the mass of a given atom, the atomic mass of a single atom can be calculated by adding the total number of protons and neutrons of that particular isotope.

The atomic mass of any element on the periodic table can be used to calculate its molar mass.

Thus, option D is correct.

To learn more about an atomic number, follow the link;

https://brainly.com/question/16858932

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Answer:

Meristematic Tissues. Tissues where cells are constantly dividing are called meristems or meristematic tissues. These regions produce new cells.

Explanation:

thank me later

Answer:

Back into the sky and sewers/drainage holes

Explanation:

Water becomes evaporated from the sun and Rain also goes into drainage holes

Into the Earth of course! Rain falls from the sky then onto the ground in the dirt making grass or flowers, or perhaps crops. Rain kan also go onto the tress in the rainforest, or maybe the beautiful Niagara Falls.

(hope this helps!)

Answer:

pseudoscience

Explanation:

A pseudoscience may be defined as certain beliefs and statements or practices that are mistakenly regarded as a practice that is based on scientific method. These practices are claimed and thought to be factual as well as scientific, but they are incompatible with any scientific method.

One such pseudoscience is the belief that magnets can cure arthritis. It is a common belief that magnet therapy cab ease and provide a relief from the arthritis pain but scientific studies have confirmed that such treatments are ineffective for the arthritis pains and problems.

11. change from gas to liquid

12. slower

13. increased

14. smaller

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