Aspirin is not as____
in water as sugar is.

Answer:

Bromine

Explanation:

Cuz it has bro in it :)

Hello sir, The answer that you are looking for is fluorine. Fluorine is the most electronegative atom. I am also sorry for calling you sir. I didn't know you were a woman.

Answer:

Volume of hydrogen gas formed = 3.1 L

Explanation:

Given data:

Mass of magnesium = 3.00 g

Temperature = room = 27°C (27+273 = 300 K)

Pressure = 1 atm

Volume of hydrogen gas formed = ?

Solution:

Chemical equation:

Mg + H₂SO₄    →       MgSO₄ + H₂

Number of moles of Mg:

Number of moles = mass/molar mass

Number of moles = 3.00 g/ 24 g/mol

Number of moles = 0.125 mol

Now we will compare the moles Mg with hydrogen.

                    Mg             :             H₂

                     1                :              1

                   0.125          :          0.125

Volume of hydrogen:

PV = nRT

1 atm × V = 0.125 mol  ×  0.0821 atm.L /K.mol × 300 k

V = 3.1atm.L/1 atm

V = 3.1 L

Answer:

D

Explanation:

The nucleus was postulated as small and dense to account for the scattering of alpha particles from thin gold foil, as observed in a series of experiments performed by undergraduate Ernest Marsden under the direction of Rutherford and German physicist Hans Geiger in 1909.

Answer:11.35 g/cm 3

Explanation:

Length

= 2.0 dm = 20 cm

Breadth

= 8.0 cm

Height

= 35 mm = 3.5 cm

Volume of block

V = ℓ ⋅ b ⋅ h = 20 cm × 8.0 cm × 3.5 cm = 560 cm

3

Density of lead is

Density

=

Mass

Volume

=

6356 g

560 cm

3

=

11.35 g/cm

3

Explanation:

Answer:

B It's physical properties changed

Explanation:

Because they painted the outside

Answer:

i dont feel like typin the whole definition so im jus gonna type the number with the word

1- temperature

2- laws of conservation of energy

3- boiling point

4- freezing point

5- joule

6- thermal energy

7- heat

8- solid

9- liquid

10- gas

Answer:

hey guys

Explanation:

hope this helps you to do something good

Answer:

120876

Explanation:

A crest of a wave with an amplitude of 5 meters intersects the through of another wave with an amplitude of 2 metre . the resulting amplitude is

A. 3 meters

The resultant amplitude will be 7 meters.

We have crests of two different waves.

We have to find the resulting amplitude when both the waves intersect.

A crest point on a wave is the maximum value of upward displacement within a cycle.

According to the question -

Amplitude of wave 1 = 5 meters.

Amplitude of wave 2 = 2 meters.

Assuming that both waves are in phase, when the two waves which are

in-phase interfere, they interfere constructively. The final amplitude will be -

A(f) = A[1] + A[2] = 5 + 2 = 7 meters.

Hence, the resultant amplitude will be 7 meters.

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Answer:

The answer is C) Gravity keeps all matter on Earth.

Explanation:

I took the test and this was correct!

(Not a fake answer like some, I promise!)

Answer:

124.56 moles of Hydrogen atoms.

Explanation:

We'll begin by calculating the number of moles of ethane that contains 1.25×10²⁵ molecules. This can be obtained as follow:

From Avogadro's hypothesis, 1 mole of any substance contains 6.02x10²³ molecules. This implies that 1 mole of ethane also contains 6.02x10²³ molecules.

Thus, 6.02x10²³ molecules are present in 1 mole of ethane.

Therefore, 1.25×10²⁵ molecules are present in = 1.25×10²⁵/6.02x10²³ = 20.76

Therefore, 20.76 moles of ethane contains 1.25×10²⁵ molecules.

Finally, we shall determine the number of mole of Hydrogen in 20.76 moles of ethane. This can be obtained as follow:

Ethane has formula as C2H6.

From the formula, 1 mole of ethane, C2H6 contains 6 moles of Hydrogen atoms.

Therefore, 20.76 moles of ethane will contain = 20.76 × 6 = 124.56 moles of Hydrogen atoms.

Therefore, 1.25×10²⁵ molecules of ethane contains 124.56 moles of Hydrogen atoms.

Answer:

Argon-40

the reason this is abundent is because this is a more common isotope

Explanation:

Answer:

Change in temperature = ΔT = 26.8°C

Explanation:

Given data:

Heat absorbed = 600 j

Mass = 25.0 g

Specific heat capacity = 0.897j /g°C

Change in temperature = ΔT= ?

Solution:

Formula:

q = mcΔT

600 j =  25.0 g ×0.897 j/g°C×ΔT

600 j =  22.425 j/°C×ΔT

ΔT = 600 j /22.425 j/°C

ΔT = 26.8°C

Answer:

A consumer

Explanation:

Organisms, such as plants, that produce their own food by methods such as photosynthesis are called producers.

Organisms that need to consume other organisms as their food source, including all animals, are consumers. Some consumers consume plants (primary consumers, or herbivores) but other consumers eat other consumers (secondary consumers, or carnivores)

Answer:There is no relationship between the viscosity and density of a fluid. While viscosity is the thickness or thinness of a fluid, density refers to the space between its particles. However, both properties are affected by temperature. When a fluid is heated, its particles move far apart, and it also becomes less viscous.

Answer:

1.62 g of Al contain the same number of atoms as 6.35 g of cadmium have.

Explanation:

Given data:

mass of cadmium = 6.35 g

Number of atoms of aluminum as 6.35 g cadmium contain = ?

Solution:

Number of moles of cadmium = 6.35 g/ 112.4 g/mol

Number of moles of cadmium = 0.06 mol

Number of atoms of cadmium:

1 mole = 6.022×10²³ atoms of cadmium

0.06 mol × 6.022×10²³ atoms of cadmium/ 1mol

0.36×10²³ atoms of cadmium

Number of atoms of Al:

Number of atoms of Al = 0.36×10²³ atoms

1 mole =  6.022×10²³ atoms

0.36×10²³ atoms × 1 mol   /6.022×10²³ atoms

0.06 moles

Mass of aluminum:

Number of moles = mass/molar mass

0.06 mol = m/ 27 g/mol

m = 0.06 mol ×27 g/mol

m = 1.62 g

Thus, 1.62 g of Al contain the same number of atoms as 6.35 g of cadmium have.

Answer:

Atoms consist of a nucleus made of protons and neutrons orbited by electrons. Atoms are the basic units of matter and the defining structure of elements. The term "atom" comes from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided

Explanation:

Answer:

We are given the following equation:

C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(g)

we can see that the number of moles of H2O is 4/3 time the moles of CO2

So, the easiest way to find the number of moles of H2O is to find the number of moles of CO2 and multiply it by 4 / 3

Moles of CO2:

Molar mass of CO2 = 44 grams / mol

Moles of CO2 = Given mass / Molar mass

Moles of CO2 = 16.3 / 44 moles

Moles of H2O:

Moles of H2O = Moles of CO2 * 4 / 3

Moles of H2O = 16.3 * 4 / 3 * 44

Moles of H2O = 16.3 / 3 * 11

Moles of H2O = 16.3 / 33

Moles of H2O = 0.5 moles (approx)

Therefore, along with 16.3 grams of CO2, 0.5 moles of H2O will also be formed

Answer: Europe

Explanation: it’s in germany

Answer:

option c

Explanation:

neutros equal to mass num - atomic num

An atom can be defined by its properties:

An isotope is represented by the general notation of [tex]_Z^A\textrm{Y}[/tex], where X is the symbol of an element.

Mass number = Numer of protons + Number of neutrons

Put the value in the above formula.

[tex]\Rightarrow \text{Mass number}=3+5[/tex]

[tex]\Rightarrow \text{Mass number}=8[/tex]

The isotopic representation of the chemical specie is [tex]_3^8\textrm{Li}[/tex]. So, the correct option is C.

Learn more about isotopic representation: https://brainly.com/question/18210355

Answer:

It is the second answer; A dark solid formed on the zinc.

Explanation:

This is the correct answer because when a solid is formed it is called a precipitate, which is commonly known as a chemical reaction.

The evidence that supports the student's inference is a dark solid formed on the zinc.

When zinc is added to copper sulphate (CuSO4) solution, due to more reactivity of zinc, copper is replaced by zinc and forms zinc sulphate precipate.

Thus, the student is correct, there will be a chemical reatcion between the zinc and  copper sulphate (CuSO4) solution, producing a dark solid substance.

Learn more about chemical reaction here: https://brainly.com/question/26018275

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Answer:

37548.55

Explanation:

3.7500*10^4+9.7100*5

3.7500*10000+9.7100*5

37500+48.55

37548.55

Explanation:

ur answer okkkkkkkkkkkkkkkkll

Answer:

25 mL

Explanation:

Step 1: Given data

Step 2: Calculate the volume of the concentrated NaCl solution

We will use the dilution rule.

C₁ × V₁ = C₂ × V₂

V₁ = C₂ × V₂ / C₁

V₁ = 0.1 M × 0.500 L / 2 M

V₁ = 0.025 L = 25 mL

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} \\[/tex]

From the question

mass = 123 g

density = 12.8 g/mL

We have

[tex]volume = \frac{123}{12.8} \\ = 9.609375...[/tex]

We have the final answer as

Hope this helps you

Answer:

Al2O3 + 3Cl2 + 3 C → 2 AlCl3 + 3 CO

Explanation:

Answer: Gravity

Explanation:

A PE X

Answer: A

Explanation:

it had wings that flapped, similar to birds' wings.