Explain what might happen to tundra animals, such as polar bears, as earth's climate warms. pls explain

Answer:

If there is no air resistance then both of the objects hit the ground first.

Explanation:

Answer:

it 2.0 aka b

Explanation:

Answer:

SnCl2 is nonlinear due to the presence of lone pair of electrons on the central atom.....

Answer:

-4.4 kJ

Explanation:

Answer:

One molecule

Explanation

But there is three different atoms forming this one NaOH. The three atoms are Na, O and H, that is one sodium, one oxygen, and one hydrogen.

Explanation:

0.3,1.2, or 2.1. sorry if it's wrong.

The bond between hydrogen (H) and oxygen (O) (option 3: H-O) has the highest electronegativity difference (1.24). Therefore, the H-O bond is the most polar among the given choices.

The polarity of a chemical bond depends on the electronegativity difference between the two atoms involved. The greater the electronegativity difference, the more polar the bond.

Let's compare the given bond options:

(1) C-O: The electronegativity of carbon (C) is approximately 2.55, and the electronegativity of oxygen (O) is approximately 3.44. The electronegativity difference is 0.89.

(3) H-O: The electronegativity of hydrogen (H) is approximately 2.20, and the electronegativity of oxygen (O) is approximately 3.44. The electronegativity difference is 1.24.

(2) F-F: Fluorine (F) is the most electronegative element with an electronegativity of 3.98. Since both atoms in this case are fluorine, the electronegativity difference is 0.

(4) N-H: The electronegativity of nitrogen (N) is approximately 3.04, and the electronegativity of hydrogen (H) is approximately 2.20. The electronegativity difference is 0.84.

From the options provided, the bond between hydrogen (H) and oxygen (O) (option 3: H-O) has the highest electronegativity difference (1.24). Therefore, the H-O bond is the most polar among the given choices.

Learn more about polar bond from the link given below.

https://brainly.com/question/33647611

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Answer:

Cordera is colder than Hillsdale.

Explanation:

They may be at a similar latitude. But you also have to consider the currents nearby the location.

The prevailing wind closer to the equator which carries warm current hits Hillsdale which is why it follows the coastline of the continent. However, for Cordera prevailing winds carrying cold currents hits the continent and follows or hits the coastline of Cordera.

Answer:

Nichrome

Answer: Hot water system coils are commonly made up of metal alloys which are a combination of two or more elements. The most commonly used metal alloy is “Nichrome”. Nichrome is an alloy of nickel (80%) and chromium (20%).

Answer:

Explanation:

The chemical formula of Benadryl is [tex]C_{17}H_{21}NO[/tex]

1 mol of Benadryl has 17 mol of hydrogen

2.5 mol of Benadryl has 17*2.5 = 42.5 moles of hydrogen.

Mols are peculiar chemical definitions. You have to be careful what you are talking about. You are given mols of Benadryl, which is the whole molecule. Whole molecule means the Carbon Hydrogen Nitrogen and Oxygen

Each mol of Benadryl contains 17 mols of carbon, 21 moles of hydrogen, 1 mol of nitrogen and 1 mol of oxygen

Answer:

The combined gas law combines the three gas laws: Boyle's Law, Charles' Law, and Gay-Lussac's Law. It states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant. When Avogadro's law is added to the combined gas law, the ideal gas law results.

Explanation:

Hope this helps

~Bre

Answer:

C) H2S

Explanation:

In chemistry, the dissolution of one substance in another is dependent on the magnitude of intermolecular interaction between the two substances.  Hence, if two substances do not interact in one way or the other, then one can not dissolve the other.

Let us consider the fact that NH3 is a polar molecule and it is a general principle that like dissolves like. Hence, only H2S which is also a polar molecule can effectively interact with  NH3 due to dipole-dipole interaction between the two molecules.

Also, ammonia reacts with hydrogen sulphide as follows;

2NH3 + H2S → (NH4)2S

Hence H2S is more likely to dissolve in NH3.

Answer:

a. True

Explanation:

Hello there!

In this case, as Grignard reagents are widely used in organic-synthesis procedures, since they are compelling nucleophiles able to react with electrophiles such as carbonyl compounds (aldehydes, ketones, esters, carbon dioxide, etc) and epoxides;  they are involved in the addition of new C-C bonds to an starting carbon chain; therefore, this statement is a. True.

Best regards!

Answer:

Beryllium

Explanation:

Answer:

There are 3.08 moles of hydrogen gas in the tank

Explanation:

As we know

[tex]PV = nRT[/tex]

where P is the pressure of the gas in atm

V is the volume in liters

n is the number of moles

R is the gas constant = 0.08206 L·atm/K·mol

and T is the temperature in Kelvin.

Substituting the given values in above equation, we get -

[tex]1.51 * 25 = n * 0.08206 * 149\\n = 3.08[/tex]

There are 3.08 moles of hydrogen gas in the tank

Answer:

4.28g

Explanation:

Answer:

C. Alpha

Explanation:

I did it and I got it right

Answer: C. Alpha

Explanation:

Answer:

12 moles of water (E)

Explanation:

The first step is to see that the equation is balanced. It is now, but you did something strange to the Mg3N2.

Mg3N2(s) + 6H20(l)   ======>  3Mg(OH)2(s) + 2NH3(g)

What the equation is telling you is that 1 mol of Mg3N2 requires 6 moles of water for the reaction to occur.

So 2 mols of Mg3N2 would require 6*2 mols of water to react.

The answer is 12 moles of water

Answer: 16 neutrons

Explanation: The atomic number for any element is the number of protons in its atomic nuclei. In a neutral atom, the number of electrons are the same as the number of protons. The atomic mass (mass number) is the sum of the protons and neutrons in the nucleus. Mass number can vary due to the fact that the number of neutrons can vary. Isotopes are named for their mass numbers.

So, this element has 15 protons (atomic number), 15 electrons, and 16 neutrons (mass number minus atomic number).

This isotope is phosphorus-31, which has atomic number 15.

H_2SO_4

[tex]\\ \sf\longmapsto 2(4u)+32u+4(16u)[/tex]

[tex]\\ \sf\longmapsto 8u+32u+64u[/tex]

[tex]\\ \sf\longmapsto 104u[/tex]

[tex]\\ \sf\longmapsto 104g/mol[/tex]

[tex]\\ \sf\longmapsto 23u+16u+1u[/tex]

[tex]\\ \sf\longmapsto 40u[/tex]

[tex]\\ \sf\longmapsto 40g/mol[/tex]

[tex]\\ \sf\longmapsto 2(23u)+32u+4(16u)[/tex]

[tex]\\ \sf\longmapsto 46u+23u+64u[/tex]

[tex]\\ \sf\longmapsto 69u+64u[/tex]

[tex]\\ \sf\longmapsto 133u[/tex]

[tex]\\ \sf\longmapsto 133g/mol[/tex]

H_2O

[tex]\\ \sf\longmapsto 2(1u)+16u[/tex]

[tex]\\ \sf\longmapsto 18u[/tex]

[tex]\\ \sf\longmapsto 18g/mol[/tex]

Answer:

2000 L

General Formulas and Concepts:

Atomic Structure

Gas Laws

Ideal Gas Law: PV = nRT

Explanation:

Step 1: Define

[Given] 8.8 moles gas

[Given] 0.12 atm

[Given] 56 °C = 329.15 K

Step 2: Solve for V

Step 3: Check

Follow sig fig rules and round. We are given 2 sig figs.

1981.7 L ≈ 2000 L

Answer:

1.47 atm

Explanation:

From the question.

Applying

PV = nRT................. Equation 1

Where P = pressure, V = volume, T = temperature, n = number of moles, R = Molar gas constant

Makr P the subject of the equation

P = nRT/V................ Euqation 2

Given: V = 50.0 L, n = 3.00 mol, T = 25°C = (273+25) = 298K,

Constant: R = 0.082 atm.L.K⁻¹mol⁻¹

Substitute these values into equation 2

P = (3×298×0.082)/(50)

P = 73.308/50

P = 1.46616

P ≈ 1.47 atm

Answer:

2p

Explanation:

Boron is a member of group 13. The highest energy sub-level is usually found on the outermost shell of the atom of the element involved.

For a group 13 element, its outermost shell configuration is ns2 np1. The electronic configuration for boron is; 1s2 2s2 2p1.

Hence the highest energy sub-level in boron is 2p.  

Answer:

please give me brainlist and follow

Explanation:

when using first method for regular shape and 2nd method for an irregular shape. ... It will not work because the weight is different.