Helppp please I will give a brain thing plleaseee

P.S. This is a science question not a chemistry.

Vesnalui [34]

Answer:

B) When the tilt of the Earth causes the sun’s energy/light to be spread out over a larger area, temperatures are ______warmer______ causing _____Summer_______ to occur.

3 0

3 years ago

What is the density of 2.5 g of gaseous sulfur held at 130. kPa and 10.0 degrees Celsius?

worty [1.4K]

Use ideal gas equation: pV = nRT

Now pass n to mass: n = mass / MM .... [MM is the molar mass]

pV = [mass/MM]*RT =>mass/V = [p*MM] / RT and mass / V = density

p= 130 kPa = 130,000 Pa = 130,00 joule / m^3
T = 10.0 ° + 273.15 = 283.15 k
MM of sulfur (S) = 32 g/mol = 32000 kg/mol

density = 130,000 Pa * 32000kg/mol / [8.31 joule / mol*k * 283.15 k] = 1.77*10^6 kg/m^3 = 1.77 g/L ≈ 1.8 g/L

Then, I do not get any of the option choices.

Is it possbile that the pressure is 13.0 kPa instead 130. kPa? If so the answer would be 18 g/L

Note that the mass is not used. You do not need it unless you are asked for the volume, which is not the case.

4 0

4 years ago

Read 2 more answers

If the percent (mass/mass) for a solute is 16% and the mass of the solution is 400 g,

Svetllana [295]

Answer:

$m = 64\,g$

Explanation:

The mass of the solute is given by the following expression:

$m = 0.16\cdot (400\,g)$

$m = 64\,g$

4 0

4 years ago

You drop an ice cube into acupof hot liquid andyou drop another ice cube into apitcherof hot liquid that is the same temperature

sukhopar [10]

Given what we know, we can confirm that in the situation given in this question, the ice cube placed into the pitcher of water will melt quicker than the cube in the cup of water.

<h3>Why does the cube in the pitcher melt quicker?</h3>

In order to melt, the ice must receive heat from the water around it.

The hotter the water is, the more heat the ice can receive.

Given that the cup has a low amount of water, it will quickly cool down, slowing the melting process of the ice.

The pitcher, however, has more molecules of water that are able to give heat to the ice, meaning that the ice can melt faster.

Therefore, given that the pitcher contains more water, it will be able to lose more heat before to the ice cube than the cup of water and thus melt the cube faster.

To learn more about heat dissipation visit:

brainly.com/question/4582322?referrer=searchResults

5 0

2 years ago

Why does the dimethylaniline couple with the diazonium salt at the para position of the ring?

Nady [450]

Explanation:

In the coupling reaction of the dimethylaniline and diazonium salt, both electronic and steric factors play a very important role. The resonance structures of dimethylaniline favor electrophilic attack at both the ortho and the para positions. But on the other hand, diazonium coupling produces the majority of the para product because the steric factor plays role here in this reaction.

The bulky dimethylamino groups on the dimethylaniline make it difficult for electrophile to approach ortho position and also, diazonium ion is relatively large. The two steric factors reduce amount of the ortho isomer and para isomer predominates.

7 0

4 years ago