CHEMISTRY MIDDLE SCHOOL

Part C
Why are dichotomous keys useful in classifying a new species?

Answers

Answer 1
Answer:

Answer:

By comparing the traits of other species to that of an undefined species. Even if it is a new species, it can be classified under a specific species type through dichotomous keys.

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Why did Dalton think it was important to use his system of symbols for the chemical elements?

Answers

Explanation:

to remind people that atoms were

Answer:

to remind people that atoms were

Explanation:

On Sunday NASA's SpaceX launched 4 astronauts into space for a mission lasting 5 months. They named their spacecraft RESILIENCE.In 4-6 sentences explain what the word RESILIENCE means to you. Also, why do you think they named their spacecraft that? Please respond to this prompt in your own words, there is no need to google!

!!DO NOT GOOGLE IT!!

Answers

Answer: I think they named it RESILIENCE to point out that it should be resilient to harsh conditions and that it would be able to push through with little damage. when I hear the word resilience I think of strong able to push through. I think of myself of resilient because _________________. Naming the space craft RESILIENCE is smart because the astronauts will know they are safe when they launch.

Explanation:

.Calculate the number of moles of each component element in the compound.

Answers

Answer:

H = 1.98

S = 1.02

O = 4.08

Explanation:

Step 1: Find the Molar Mass of Adrenaline

Step 2: Find the Mass of Oxygen in 1 mol of Adrenaline

Step 3: Calculate Percentage Composition of Oxygen by Mass

Step 4: Calculate Mass of Oxygen in Sample

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What is zinc+silver nitrate

Answers

Zn(s)+2AgNO_3(aq) \rightarrow Zn(NO_3)_2(aq)+2Ag(s)
 i think it is:   ZnAgN  or   Zn(Zinc) + Ag(Silver)N(Nitrogen)

Define and explain what an atom is

Answers

Hi,

Atom is the second smallest form of any matter behind elementary particles. They are not visible to human eye. It consists of protons and neutrons in the atom core and electrons outside its core. All protons, neutrons and electrons are a part of atomic nuclei.

The more neutrons atom haves the bigger the mass of an atom is.

Number of electrons determines which element does atom represent. The more electrons atom haves the heavier element atom represents.

Different elements have different properties.

Hope this helped you understand what atom is better.

Hope this helps.
r3t40

The color of a mineral in powdered form is the mineral"s?

Answers

The color of a mineral's powdered form is the mineral's streak.
Streak is the color of the mineral in powdered form. Streak shows true color of the mineral. In large form, trace minerals can change the color appearance of a mineral by reflecting the light in a certain way. Trace miners have little influence on the reflection of the small powdery particles of the streak.

The streak of metallic minerals tends to appear dark because the small particles of the streak absorb the light hitting them. Non-metallic particles tend to reflect most of the light so they appear lighter in color or almost white.

Because streak is a more accurate illustration of the mineral's color, streak is a more reliable property of minerals than color for identification.
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I will give brainliest!! Which branch of chemistry deals with the mass relationships of elements in compounds and the mass relationshops among reactants and products in chemical reactions?aquantitative analysisbentrophycchemical kineticsdstoichiomentry