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2 years ago

What is a example of eukaryote

Chemistry

2 answers:

otez555 [7]2 years ago

7 0

Animal cells are eukaryotes because they have a nucleus and other organelles in an enclosed membrane.

Marta_Voda [28]2 years ago

3 0

characteristics:

Has to be able to go through homeostasis.

Has to be able to grow

Has to be able to move

Has to be able to eat and drink

Has to have a well defined nucleus

Has to have a nuclei and a membrane bound organelle

Are found in multi-cellular organisms(animals, plants, and fungi.)

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Select the correct answer.

ser-zykov [4K]

Answer:

I think the answer would be option d.

hope it helps.

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2 years ago

Select the correct answer. Based on the reactivities of the elements involved, which reaction will form products that are more s

FinnZ [79.3K]

Answer: The correct answer is option B.

Explanation: Reactivity of elements is defined as the tendency to loose or gain electrons.

These reactions are a type of single displacement reactions. A single displacement reaction is a type of reaction in which an element displaces another element in a chemical reaction. These are studied with the help of reactivity series.

The element which lies above in the reactivity series can easily displace the element which lies below in the reactivity series.

Option A: This reaction will not yield a stable product because Zinc lies below Aluminium in the reactivity series.

$AlBr_3+Zn\rightarrow \text{No reaction}$

Option B: This reaction will yield a stable product because Sodium lies above Calcium in the reactivity series.

$CaBr_2+2Na\rightarrow 2NaBr+Ca$

Option C: This reaction will not yield a stable product because Hydrogen lies below Magnesium in the reactivity series.

$MgBr_2+H_2\rightarrow \text{No reaction}$

Option D: This reaction will not yield a stable product because Calcium lies below Barium in the reactivity series.

$BaBr_2+Ca\rightarrow \text{No reaction}$

Option E: This reaction will not yield a stable product because barium lies below Lithium in the reactivity series.

$2LiBr+Ba\rightarrow \text{No reaction}$

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2 years ago

What mass of zinc is needed to react with 23.1g of phosphoric acid according to the following equation?

Hunter-Best [27]

23.01 g of zinc (Zn)

Explanation:

We have the following chemical reaction:

3 Zn + 2 H₃PO₄ = 3 H₂ + Zn₃(PO₄)₂

number of moles = mass / molar weight

number of moles of phosphoric acid = 23.1 / 98 = 0.236 moles

Taking in account the chemical reaction, we devise the following reasoning:

if 2 moles of H₃PO₄ are reacting with 3 moles of Zn

then 0.236 moles of H₃PO₄ are reacting with X moles of Zn

X = (0.236 × 3) / 2 = 0.354 moles of Zn

mass = number of moles × molar weight

mass of Zn = 0.354 × 65 = 23.01 g

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number of moles

brainly.com/question/13911775

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2 years ago

According to ________, the number of transistors that could be squeezed onto a silicon chip would double every 18 months. Metcal

kobusy [5.1K]

Answer:

It is in obedience to Moore's law

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2 years ago

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The reaction 2k(s) + br2(l) → 2kbr(s) is a(n) ______________ reaction.

Zinaida [17]

An oxidation reaction

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