CHEMISTRY COLLEGE

All light travels at the same speed.
O True
O False

Answers

Answer 1
Answer: False

thank me later
Answer 2
Answer:

Answer:

False

Explanation:

It depends on wixh kid of light is it

Example

Sun light difders from lamp light

Related Questions

Chloride is nearly twice the size of chlorine even though it only gains one electron. Explain why.
The ph of coffee is 5.6. The ph of grapefruit juice is 2.6. This means that the proton concentration in coffee is
What is the molarity of the potassium hydroxide if 27.20 mL of KOH is required to neutralize 0.604 g of oxalic acid, H2C2O4?H2C2O4(aq)+2KOH(aq)→K2C2O4(aq)+2H2O(l)
Need help ASAP!!!!!!!
I have always enjoyed eating tuna fish. Unfortunately,a study of the mercury content of canned tuna in 2010 foundthat chunk white tuna contains 0.6 ppm Hg and chunk lighttuna contains 0.14 ppm. (S. L. Gerstenberger, A. Martinson,and J. L. Kramer, Environ. Toxicol. Chem. 2010, 29, 237.) TheU.S. Environmental Protection Agency recommends no morethan 0.1 mg Hg/kg body weight per day. I weigh 68 kg. Howoften may I eat a can containing 6 ounces (1 lb 5 16 oz) ofchunk white tuna so that I do not average more than 0.1 mgHg/kg body weight per day? If I switch to chunk light tuna,how often may I eat one can?

Professionalism and why there is a distinction between the healthcare community and public

Answers

Answer:

ye do it is bad for healthcare community has u to do with health to and public

Which of the following species is amphoteric? A)HCO32- B) HF O C) NH4+ D) P042-

Answers

Answer:

HCO_(3)^(-)

Explanation:

Chemical species which can behave as both acids and bases are known as amphoteric species.

HCO_(3)^(-) can behave as both acid and base.

HCO_(3)^(-) can donate H+:

HCO_3^(-) \rightarrow CO_3^(2-) + H^+

HCO_(3)^(-) can accept H+ as well:

HCO_3^(-) + H^+ \rightarrow H_2CO_3

HF can only behave as acid, as it can only donate H+.

HF(aq) \rightarrow H^(+)(aq) + F^(-)(aq)

NH_4^(+) is a conjugate acid of NH_3.

PO_4^(2-) is a conjugate base.

Final answer:

In chemistry, an amphoteric species can act as both a base and an acid. Among the given options, HCO3- (bicarbonate ion) is amphoteric because it can either donate or accept protons.

Explanation:

Among the provided options, the species that are amphoteric are HCO3- (bicarbonate ion). The term amphoteric refers to substances that can act both as an acid and a base. In other words, they can either donate or accept protons. Let's take HCO3- as an example. This ion can act as a base by accepting H+, forming H2CO3, or it can act as an acid by donating H+, forming CO32-. This dual behavior makes it an amphoteric species.

Learn more about Amphoteric Species here:

brainly.com/question/35379163

#SPJ11

The Earth can gain or lose matter. True False​

Answers

Answer:

True

Explanation:

According to some calculations, the Earth is losing 50,000 metric tons of mass every single year, even though an extra 40,000 metric tons of space dust converge onto the Earth's gravity well, it's still losing weight.

Answer:

true

Explanation:

A car travels with a speed of 91.4 kilometers per hour (km/hr). Convert this speed to meters per second (m/s). Show your work.

Round your final answer to three significant figures.

Type your answer...

Answers

Answer:

25.3889 m/s

Explanation:

We can simply write 91.4km/hr as,

91.4km

1 hr

=91400m

60 s × 60 s

=91400m

3600 s

= 25.3889 m/s

What is the only gaseous component of the atmosphere whose concentration is routinely contained in all weather reports?

Answers

In weather report generally the temperature conditions and the extent of humidity is described. Humidity is nothing but presence of water in its vapour form. Hence the only gas which is being reported in a weather report must be water vapour. The other gases like oxygen carbon dioxide or noble gases or nitrogen are never mentioned in a normal weather report issued in public interest

Acid catalyzed hydrolysis of HOCH2CH2C(CH3)2CN forms compound A (C6H10O2). A shows a strong peak in its IR spectrum at 1770 cm−1 and the following signals in its 1 H NMR spectrum: 1.27 (singlet, 6 H), 2.12 (triplet, 2 H), and 4.26 (triplet, 2 H) ppm. Draw the structure for A and select the correct answers to complete a mechanism that accounts for its formation.

Answers

Answer:

3,3-dimethyldihydrofuran-2(3H)-one

Explanation:

The simulated spectrum of molecule => Figure 1

Mechanism=>Figure2

Answer:

From the given problem statement we need to hydrolyses HOCH2CH2C(CH3)2CN structure that forms (C6H10O2)

Peak of IR spectrum=1770 cm^-1

This structure for A involves 6 carbon atoms,four hydrogen atoms and 6 oxygen atoms for a complete reaction to occur.
Other Questions
The Michael reaction is a conjugate addition process wherein a nucleophilic enolate anion (the donor) reacts with an α,β-unsaturated carbonyl compound (the acceptor). The best Michael reactions are those that take place when a particularly stable enolate anion is formed via treatment of the donor with a strong base. Alternatively, milder conditions can be used if an enamine is chosen as the donor, this variant is termed the Stork reaction. In the second step, the donor adds to the β-carbon of the acceptor in a conjugate addition, generating a new enolate. The enolate abstracts a proton from solvent or from a new donor molecule to give the conjugate addition product. Draw curved arrows to show the movement of electrons in this step of the mechanism.
The element oxygen has valence electrons
Which of the following electron configurations represents an excited state of the indicated atom? Group of answer choices a.Na: 1s2 2s2 2p6 3s2 3p2 3s1 b.Ne: 1s2 2s2 2p6 c.N: 1s2 2s2 2p3 d.P: 1s2 2s2 2p6 3s2 3p2 4s1 e.He: 1s2
The covalent compounds are soluble in:a) All acidsb) All basesc) all solventsd) nonpolar solvents​