What is the Scientific
Method?

Answer:

48 cups

Explanation:

16 x 3.5 = 48

Since one gallon is 16 cups, it would be done like this

Answer:

The anwser is always Jesus.

Explanation:

Things can only go downhill from here

The physical change is a modification in the structure of the chemical substance. Teeth tearing off a bite of a taco represents a physical change. Thus, option B is correct.

A physical change is an alteration in the structure of the chemical involved in the substance. In a physical change, the composition of the chemical remains intact and does not change. It includes changes in texture, temperature, shape, and phase of matter.

The processes like dissolving, boiling, cutting, melting, bending, and freezing are said to be physical changes. The teeth-bitting tacos result in smaller bites is a physical change as there is a change in the shape and size but not the composition.

Therefore, option B. the teeth tearing tacos is an example of physical change.

Learn more about physical change here:

https://brainly.com/question/18690541

#SPJ6

Answer:

1. Richter 2. Moment

Hope this helps !!

Answer:

no

Explanation:

Answer:

atomic theory

Explanation:

Answer:

google friend tell me

Explanation:

You will have to look up the isotopic distribution of lithium nuclei. ALL lithium nuclei have 3 positively charged nuclear particles, protons, i.e. Z = 3 . These 3 particles give rise to the element's identity. If you take the weighted average of ALL lithium nuclei, we get an average mass of 6.941 g⋅mol−1

Answer:

Explanation:

Gymnastics

Answer: Gymnastics

Explanation:

Answer. What comes in contact with Sodium Hydroxide to form soap and glycerine it is a chemical change because you cannot reverse this change and also the products formed are the results of a chemical reaction

Answer:

Its a chemical change because its property is changed.

Explanation:

Answer:

molecular number

Explanation:

because it shows exact numbers

15 cm

and I have to explain but there's nothing to explain so yea

Answer:

Hydrogen.

Explanation:

We see in the nucleus that we have 1 proton and 1 neutron.

The number of protons in the nucleus determines which element it is.

Element with 1 proton is the 1st element on the Periodic Table, Hydrogen.

Answer:

elements

Explanation:

A compound always consists of the same elements in the same ratio. If the same elements combine in different ratios, they form different compounds

Answer:

Chemical name for As2S3 is Arsenic sulfide

Explanation:

Answer:

Arsenic Sulfide

Explanation:

Answer:

A prefix

Explanation:

you're welcome

The covalent molecules named as,

So, option B is correct one.

To learn more about covalent molecules,

https://brainly.com/question/1646189

#SPJ2

Answer:

73 days

Explanation:

From the question given above, the following data were obtained:

Half life (t½) = 18.2 day.

Original amount (N₀) = 0.70 g

Amount remaining (N) = 0.04375 g

Time (t) =.?

Next, we shall determine the rate of decay of the isotope. This can be obtained as follow:

Half life (t½) = 18.2 day.

Decay constant (K) =.?

K = 0.693 / t½

K = 0.693 / 18.2

K = 0.038 /day

Finally, we shall determine the time taken for the isotope to decay to 0.04375 g. This can be obtained as follow:

Original amount (N₀) = 0.70 g

Amount remaining (N) = 0.04375 g

Decay constant (K) = 0.038 /day

Time (t) =.?

Log(N₀/N) = kt /2.303

Log (0.70/0.04375) = (0.038 × t) /2.303

Log 16 = (0.038 × t) /2.303

1.2041 = (0.038 × t) /2.303

Cross multiply

1.2041 × 2.303 = 0.038 × t

Divide both side 0.038

t = (1.2041 × 2.303) / 0.038

t = 72.97 ≈ 73 days

Therefore, it will take approximately 73 days for the isotope to decay to 0.04375 g

The correct answer is B: 121 and 123 Atomic Mass.

Mass spectrometers only detect stable isotopes.

Almost all elements exhibit isotopy. Isotopy is a phenomenon whereby atoms of the same atomic number have different atomic masses. The relative atomic mass of each element is the weighted average of the masses of all its isotopes.

Owing to the phenomenon of isotopy, the relative atomic mass of elements are not whole numbers.

The isotopes recorded by a mass spectrometer are stable isotopes of an element. The two stable isotopes of antimony are  Sb-121 and Sb-123. These two appear in its mass spectrum.

https://brainly.com/question/23431172

Answer:

the globuler cluster

Explanation:

hope this helps maybe next time show anwsers

Answer:

Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)

Explanation:

The net reaction is Z n ( s ) + 2 H + ( a q ) → Z n 2 + ( a q ) + H 2 ( g ) The C l − ions are spectators - they don't change.

Answer:

motion

Explanation:

i just know things

Answer:

Nonmetals have more valence electrons and increase their stability by gaining electrons to become anions.

Answer: Because they are on the father side of the periodic table

Explanation: Electronegativity increases as you move from left to right on the periodic table

Answer:

D- Arsenic (As)

don’t fail pls :) ✨

The Arsenic (As) element's symbol could replace the question mark in the diagram. Therefore, option D is correct.

An electron dot diagram is a diagram used to represent the valence electrons of an atom in a simple way. Valence electrons are the electrons in the outermost shell of an atom, which are involved in chemical bonding.

In an electron dot diagram, the symbol of the element is used to represent the nucleus and inner electrons of the atom, and dots are placed around the symbol to represent the valence electrons. Each dot represents one valence electron, and the dots are placed on each of the four sides of the symbol (top, bottom, left, and right) before doubling up.

Thus, the Arsenic (As) element's symbol could replace the question mark in the diagram. Therefore, option D is correct.

Learn more about electron dot diagrams, here:

https://brainly.com/question/2115636

#SPJ7

Your question is incomplete, most probably the full question is this:

Which element’s symbol could replace the question mark in the diagram?

boron (B)

neon (Ne)

rubidium (Rb)

arsenic (As)

Answer:

Carbon monoxide is a colorless, odorless, and tasteless flammable gas that is slightly less dense than air.

Answer:

When published, each article expands the library of scientific literature available to all scientists and contributes to the overall knowledge base of the discipline of science. They report new research for the first time.