Which of the following is the equation for wave speed?

Answer:

Compounds are pure substance consisting of two or more different atoms

Answer:

I hope this help

Explanation:

pls brainliest

Answer:

Ok for the question you can make up your own

If you can't make up your own tell me so I can try my best to come up with questions

1. Answer: Since and last are adverbs so am not sure how that part going to go

Type of Adverb for since is: Time

Type of Adverb for last is : Time

2. Question:

Answer: happily

Type: Manner

Hopes this helps you.

There is a golden role of solubility, polar solute dissolve in polar solvent and non polar solute dissolve in non polar solvent. Therefore, Salt and sand can be separated by dissolving the salt in water, filtering the mixture, and then evaporating the water to recover the salt.

Solutions are a homogeneous mixture of two or more substances. A solution is a homogeneous mixture of solvent and solute molecules. Solvent is a substance that is in large amount in solution.

Solute is the substance which is in small amount in a solution. Salt and sand can be separated by dissolving the salt in water, filtering the mixture, and then evaporating the water to recover the salt.

Therefore, Salt and sand can be separated by dissolving the salt in water, filtering the mixture, and then evaporating the water to recover the salt.

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1227.6

Explanation:

po ang sagot khit i calculate nyo

Answer:

no when Rutherford performed the gold foil experiment he bombard the atom alpha particles and two other scientist, Geiger and Marsden came with great news saying the particles suffered serious deflection

Answer:

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Explanation:

Compression vs Tension

Tension and compression are two concepts discussed in physics. Tension is a force, while compression is a phenomenon. Both these concepts play important parts in fields such as mechanical systems, automobile engineering, heat engines, material science, pendulums and various other fields. It is vital to have a proper understanding in tension and compression in order to excel in such fields. In this article, we are going to discuss what compression and tension are, their definitions, applications of compression and tension, the similarities between compression and tension and finally, the difference between compression and tension.

Answer:

because space is near-perfect vacuum - meaning it has exceedingly few particles- there is virtually nothing in the space between stars and planets to scatter light to our eyes

Answer:

The average kinetic energy increases, and the particles collide more frequently.

Explanation:

A subshell which is 100% full or 50% full is more stable than subshells which are partially filled with a number of electrons less than or greater than half the number of electrons which can be held by the subshell.

Explanation:

Answer: Is it Conduction?

Explanation:

Answer:

129 units cubed

Explanation:

There are ten spaces between 120 and 130, so we can infer that each line represents a change in volume of 1 unit. The volume of the substance in the graduated cylinder looks like it's 1 under 130, so its volume is 129 units.

Hopefully this was helpful! :)

Answer:

Explanation:

The phenomena in which violet light causes photoelectric effect and red light does not is because red light does not achieve the minimum frequency for the phenomenon to occur but violet light does.

The phenomenon in which a substance emits electrons when light is incident upon it is called the photoelectric effect.

This electron would not be emitted if the frequency of the light does not exceed a minimum frequency called the threshold frequency.

Since in the case of the sodium metal, violet light causes the photoelectric effect while red light does not.

This implies that red light does not exceed the minimum frequency for the photoelectric effect to occur, but violet light does thereby causing the photoelectric effect to occur.

So, the phenomena in which violet light causes photoelectric effect and red light does not is because red light does not achieve the minimum frequency for the phenomenon to occur but violet light does.

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Answer:

ACID RAIN

Explanation:

duh

You did not provide any options.

Answer:

The convection zone :)

Answer:

Composition of matter

Answer:

its aragon , so letter b is right

Explanation:

Answer:

Density 0.78945 g/cm3 (at 20 °C)

Melting point −114.14 ± 0.03 °C (−173.45 ± 0.05 °F; 159.01 ± 0.03 K)

Boiling point 78.23 ± 0.09 °C (172.81 ± 0.16 °F; 351.38 ± 0.09 K)

Solubility in water Miscible

Explanation:

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Answer:

Explanation:If the products of a reaction have higher energy than the reactants, then the reaction...

Answer:

There are 10 neutrons

Explanation:

Because the atomic number is 8 and the isotope number is 18 (which is the collective protons and neutrons), we can do

18-8=10

Answer:

10

Explanation:

8 proton because it is oxygen

10 neutron because 18-8

Answer:

Use calculator but first group them one by one and open the bracket by solving them accordingly

The number we get by this operation is 0.016. This number can be taken based on the rules for significant figures.

The number of significant figures is the number of digits that are known with certainty plus the last one having some uncertainty. All non zero values are significant and zero preceding first non zero digit is not significant .

For example in 65000, there are only two significant figures.  Similarly in 0.08 only one significant digit is present. Now when we multiply two decimal numbers, the result can only have as many decimal places as there are in the value with fewest decimal places.

First, multiply the numbers inside the bracket.  As per the above rule, the result should contain only two decimal places.

(0.08 ×200×0.004) = 0.06

Multiply by 65000 - 0.06×65000 = 3900

Now divide it by the multiplication product (800× 300), 240000 we get as follows:

3900÷240000 = 0.016

Hence the result of this operation is 0.016.

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Answer:

see this

Explanation:

Answer:

1/8

Explanation:

[tex] \frac{1}{ {2}^{3} } = \frac{1}{8} [/tex]

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Answer:

Free electrons

Explanation:

Graphite conducts heat in a similar way to metals because it contains free electrons.

Conductivity is arised from the delocalization of free electrons. Metals are electron rich and conduct thermally and electrically. Graphite conducts heat in a similar way because it contain delocalized electrons.

Graphite is an allotrope of carbon as diamond and fullerenes. Graphite exhibits a  layered  helical structures in which the carbon atoms are arranged in a hexagonal fashion.

Substances conduct electricity and heat when they are rich in electrons and are mobile to pass through it. Metals are electropositive and they contains extra electrons which can be delocalized between orbitals or energy levels.

This delocalization of electrons results in an a thermal or electrical current in the substance. Carbon is in sp2 hybridisation in graphite. Where, the electrons can transit from one layer to the other in the layered structure.

Therefore, the presence of delocalized electrons make graphite conducting.

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Answer:

activity series is a list of substances ranked in order of relative reactivity.

For example, magnesium metal can displace hydrogen ions from solution. So magnesium is more reactive than hydrogen:

Mg(s) + 2H⁺(aq) → H₂(g) + Mg²⁺(aq)

Zinc metal can also displace hydrogen ions from solution:

Zn(s) + 2H⁺(aq) → H₂(g) + Zn²⁺(aq)

so zinc is also more active than hydrogen.

But magnesium metal can displace zinc ions from solution:

Mg(s) + Zn²⁺(aq) → Zn(s) + Mg²⁺(aq)

so magnesium is more active than zinc.

The activity series including these elements would be Mg > Zn > H.

Chemists have built up a complete activity series in a similar way.

The most active metals are at the top of the table; the least active are at the bottom.

Any metal that is higher in the series will displace a metal that is below it in a

The knowledge of the activity series in choosing which metal to build things with because; it provides a basis for determining which metal ion is able to displace the other upon chemical interaction.

The choice of building material is a very important design consideration.

This variation is carefully quantified by the position of metals on the activity series.

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Explanation:

Hydrochloric acid does not consider as organic acid because of the absence of carbon in it.

hope it helps