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2 years ago

9

Hydrogen bonds within liquid water are attractions between protons and hydroxide ions. are dipole-dipole attractions. are ion-in

duced dipole attractions. are attractions between protons and oxygen nuclei. are attractions between two hydrogen atoms.

1 answer:

barxatty [35]2 years ago

6 0

Answer:

true because the bonds cannot be broken down

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a quantity of gas has a volume of 400.0 mL when confined under a pressure of 600.0mm Hg. what will be the new volume of the gas

Alex787 [66]

Answer:

1200 mL

Explanation:

Given data

Initial pressure (P₁): 600.0 mmHg

Initial volume (V₁): 400.0 mL

Final pressure (P₂): 200.0 mmHg

Final volume (V₂): ?

For a gaseous sample, there is an inverse relationship between the pressure and the volume. If we consider the gas as an ideal gas, we can find the final volume using Boyle's law.

$P_1 \times V_1 = P_2 \times V_2\\V_2 = \frac{P_1 \times V_1}{P_2} = \frac{600.0mmHg \times 400.0mL}{200.0mmHg}=1200 mL$

3 0

2 years ago

Galena, a mineral of lead, is a compound of the metal with sulfur. Analysis shows that a 2.34-g sample of galena contains 2.03 g

dolphi86 [110]

The mass of sulfur in the sample is 0.31g

To calculate mass of sulfur in sample: given that amount galena is 2.34g and mass of lead is 2.03 g as galena contain both lead and sulfur the mass of sulfur = mass of galena- mass of lead , that is, 2.34- 2.03=0.31g.The molecular mass is a algebraic sum of atomic mass of each element in the compound thus the mass of the compound can be obtained by adding atomic of each element. Lead(II) sulphide occurs naturally as the mineral galena, often known as lead glance (PbS). It is a significant source of silver and the most significant lead ore.

To learn more about mass:

brainly.com/question/19694949

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7 0

1 year ago

If you are my friend come talk to me

hodyreva [135]

Answer:

what up

Explanation:

How are ya

4 0

2 years ago

Please help me this is due tonight at 9pm <br> WORTH 90 POINTS AND NO LINKS!!!

kogti [31]

(i’m not very good at writing but use this as an idea)

changing the told would mess up the amount a daylight/nighttime because they’d be at a different angle from the sun

5 0

2 years ago

Read 2 more answers

Make a neutral Beryllium atom by adding protons, neutrons and electrons. Now, what would you do to make a

Alenkinab [10]

Answer:

4 protons, 5 neutrons, 4 electrons to have the neutral Be atom

the only way to make a negative Be is to have more than 4 electrons

Explanation:

Make a neutral Beryllium atom by adding protons, neutrons and electrons. Now, what would you do to make a

beryllium atom with a negative charge?

Be has an atomic number of 4, an atomic mass 9

its atomic number tells us it has 4 protons, with a +4 charge

its atomic mass = neutrons + protons, so it has 5 neutrons with no charge

its neutral atom will have 4 electrons each with a negative charge to balance the +4 total proton harge.

so

4 protons, 5 neutrons, 4 electrons to have the neutral Be atom

to make a negative Be species, it still must have an atomic number of 4,

or it is not Beryllium

so the only way to make a negative Be is to have more than 4 electrons

3 0

2 years ago