Good science does not depend on interactions within the scientific community.<br> True<br> False

Which of the following represents new land formed beneath the plates from divergent boundaries?

ohaa [14]

Answer:

Mid ocean ridge.

Explanation:

(it is an underwater mountain range, formed by plate tectonics.)

7 0

3 years ago

How many total atoms are in 0.170 g of p2o5?

Pachacha [2.7K]

7.20594 x 10^20

First you must determine how many moles of P3O5 you have. This is done by using the formula
Number of moles (n) = mass in grams of substance (m) /divided by/ Molar mass (M) [this is the sum of the atomic mass of all atoms in the compound]

n = 0.170 / P (31 x 2) + O (16 x 5)
n = 0.170 / 142
n = 0.001197 moles

Then you use avagadros number 6.02 x10^23 this is the number of atoms in one mole of any substance. Since you have 0.001197 moles you multiply the number of moles by avagadros number

0.001197 x (6.02 x 10^23)
= 7.20594 x 10^20 atoms

3 0

4 years ago

10. A small helium tank claims to be able to fill 30 balloons to a volume of 3.15 L

Sindrei [870]

Taking into account the Boyle's law, 3.377 L of helium the tank will be able to produce at a pressure of 94.2 kPa.

The gas laws are a set of chemical and physical laws that allow determining the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature, and moles.

Boyle's law is one of the gas laws that relates the volume and pressure of a certain quantity of gas kept at constant temperature.

This law states that the pressure of a gas in a closed container is inversely proportional to the volume of the container, when the temperature is constant. That is, if the pressure increases, the volume decreases; while if the pressure decreases, the volume increases.

Mathematically, Boyle's law states that the product of pressure and volume is constant:

P×V= k

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

P1× V1= P2×V2

In this case, you know:

P1= 101 kPa
V1= 3.15 L
P2= 94.2 kPa
V2= ?

Replacing in Boyle's law:

101 kPa× 3.15 L= 94.2 kPa× V2

Solving:

$V2=\frac{101 kPa x3.15 L}{94.2 kPa}$

In summary, 3.377 L of helium the tank will be able to produce at a pressure of 94.2 kPa.

Learn more:

brainly.com/question/4147359?referrer=searchResults

7 0

3 years ago

Why is it that you can not feel earths movement but you can observes its effects

ss7ja [257]

The correct answer would be we have no other frame of reference besides the sky. We could actually tell we are moving because of the shifting of stars in the sky over time. But really, “A” would be your answer. We have the same momentum of the earth. It’s like being on a train at a constant speed. The only way you know you’re moving is if you look out the window or the speed changes causing you to be pushed around. Same thing with earth, our only reference is the sky

5 0

4 years ago

Write balanced equations and expressions for ksp for the dissolution of each of the following ionic compounds. Write a balanced

Lina20 [59]

Based on the dissolution equation of BaSO4, the solubility product, Ksp, expression of BaSO4 is: [Ba^{2+}] × [SO4^{2-}]

<h3>What is solubility product Ksp of a solute?</h3>

The solubility product, Ksp, of a substance is an equilibrium constant which expresses the product of the concentration of ions produced by a solute.

The solubility of a solute depends on temperature, thus solubility product also depends on temperature.

The balanced equation for the dissolution of barium sulfate is given below:

BaSO4 ⇌ Ba^{2+} + SO4^{2-}

The solubility product for barium sulfate is given as;

Ksp = [Ba^{2+}] × [SO4^{2-}]

Therefore, the solubility product, Ksp, expression of BaSO4 is: [Ba^{2+}] × [SO4^{2-}]

Learn more about solubility product at: brainly.com/question/26405952

3 0

2 years ago

Good science does not depend on interactions within the scientific community. True False