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2 years ago

What are examples of actinides

Chemistry

1 answer:

lilavasa [31]2 years ago

4 0

Answer:

Neptunium, Protactinium, plutonium and more

Explanation:

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How many grams of water do you need to weigh if a reaction requires 5 moles of h2o

rewona [7]

One mole of water weighs 18 grams. H₂O is composed of 2H= 2 and 1 0=16 adding gives you 18. number of moles= mass/ Relative Molecular Mass

Therefore, mass= Relative Molecular Mass×number of moles

= 18×5 moles

= 90 grams

5 0

3 years ago

Draw the product formed by the reaction of potassium t-butoxide with (1s,2s)-1-bromo-2-methyl-1-phenylbutane (shown below). (dra

VikaD [51]

You have to use a Newman projection to make sure that the H on C#2 is anti-coplanar with the Br on C#1. (Those are the two things that are going to be eliminated to make the alkene.)

My Newman projection looks like this when it's in the right configuration:
Front carbon (C#2) has ethyl group straight up, H down/left, and CH3 down/right
Back carbon (C#1) has H straight down, Ph up/left, and Br up/right.

Then when you eliminate the H from C#2 and the Br from C#1, you will have Ph and the ethyl group on the same side of the molecule, and you'll have the remaining H and CH3 on the same side of the molecule.

This is going to give you (Z)-2-methyl-1-phenyl-1-butene.

3 0

2 years ago

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The following steps refer to various stages in transmission at a chemical synapse. 1. Neurotransmitter binds with receptors asso

Furkat [3]

Answer:

3,2,5,1,4

Explanation:

A chemical synapse begins when an (3)action potential reaches the axon terminal depolarizing the membrane leading to the opening of the voltage-gated Na+ channels, this Na+ ions will then depolarize the presynaptic membrane, opening the voltage-gated Ca2+ channels. (2)Calcium ions then will initiate a cascade entering the neuron that will lead to the fusion of synaptic vesicles with the presynaptic membrane (5)causing the releasing of neurotransmitters into the synaptic cleft. (1)These neurotransmitter will diffuse across the synaptic place in order to bind to the receptors on the postsynaptic membrane, (4)particulary into the ligand-gated channels, opening them.

I hope you find this information useful and interesting! Good luck!

7 0

2 years ago

a) Provide equation of K of this reaction, use symbol " ^ " for exponents. That means 1000 = 10^3 and 1/100 is 10^(-2). b) How m

stealth61 [152]

Answer and Explanation:

a. The equation of K of this reaction is shown below:-

3 A + 5 B + 4 C↔5 D + 7 E + F

$K = \frac{(D)^5 (E)^7 (F)}{(A)^3 (B)^5 (C)^4}$

b. The moles of compound F is shown below:-

3 A + 5 B + 4 C↔5 D + 7 E + F

2 moles

Now, the mole of produced is

$= \frac{1}{4} \times \ moles\ of\ c$

Now, we will the value of c by using the above equation

$= \frac{1}{4} \times 2$

After solving the above equation we will get

0.5 moles

5 0

3 years ago

Which describes the fourth state of matter known as plasma

tester [92]

an ionized gas consisting of positive ions and free electrons in proportions resulting in more or less no overall electric charge, typically at low pressures (as in the upper atmosphere and in fluorescent lamps) or at very high temperatures (as in stars and nuclear fusion reactors).

6 0

2 years ago

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