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pogonyaev
3 years ago
9

Ice floats in water because it _____. is less dense than water contains more oxygen than water has a higher pH than water has mo

re surface tension than water
Chemistry
1 answer:
Tpy6a [65]3 years ago
3 0

Answer:

it is less dense than water

Explanation:

odyssey ware

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What is the name of the molecular compound SF 5? sulfur pentafluoride sulfur hexafluoride sulfur heptafluoride monosulfur tetraf
romanna [79]

Answer: sulfur pentafluoride

Explanation:

The rules for naming of binary molecular compound :

In the given formula, the lower group number element is written first in the name and keep its element name and the higher group number is written second.

First element i.e. sulphur in the formula is named first and keep its element name.

1) Gets a prefix if there is a subscript on it such as mono for 1, di for 2, tri for 3 and so on.

Second element i.e. fluorine is named second.

1) Use the root of the element name, if it is an anion then use suffix (-ide).

2) Always use a prefix on the second element such as mono for 1, di for 2, tri for 3 and so on.

Therefore, the chemical name of compound SF_5 is sulfur pentafluoride

4 0
3 years ago
HELP PLEASE!!! Write the chemical equation and balance it!!!
nirvana33 [79]
You can start by writing out the molecular formula of each molecule.

Aluminum (Al 3+) Phosphate (PO4 3-)

AlPO4

Nickel II (Ni 2+) sulfide (S 2-)

NiS

Aluminum Sulfide

Al2S3

Nickel Phosphate

Ni3(PO4)2

If you’re wondering, we get those charges by looking at the periodic table. The metals usually have a + charge based on their group number. The nonmetals usually - charge egual to 8 - their group number.

You then balance the ions by flipping the charges, dropping the signs, and adding them in as subscripts.

Now we can put it into an equation


AlPO4 + NiS —-> Al2S3 + Ni3(PO4)2

Balance by adding coefficients

2 AlPO4 + 3 NiS —-> Al2S3 + Ni3(PO4)2



8 0
4 years ago
3. Calculate the standard enthalpy of reaction for the following reactions:
maw [93]

Answer:

great time and we can go

Explanation:

the value of the hospital and stunt is really the value of my dog is a great time to start the process

8 0
3 years ago
Which of the following correctly describes an Arrhenius acid?
ValentinkaMS [17]

Answer:

D.

Explanation:

An Arrhenius acid is a compound that increases the H+ ion concentration in a water solution.

7 0
2 years ago
Why is thermal energy from the sun transferred to Earth through electromagnetic waves, instead of any other type of thermal ener
nlexa [21]

Answer: B) Electromagnetic waves can travel through empty space.

Explanation:

Conduction: This type of heat transfer happens when there is direct contact between the two object.  Example: heating a pan on stove.

Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas) due to the movement of hot layers to the top and cold layers to the bottom which leads to convection currents. Example: Heating of swimming pool.

Radiation: This type of heat transfer happens when there is direct transfer of energy through empty space.The electromagnetic radiation from the surface of an object which is due to the object's temperature is radiation. Example: Heating of earth's surface.

 

4 0
3 years ago
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