PLEASE HELP ME!! THIS WILL MEAN ALOT

Chemistry

1 answer:

svet-max [94.6K]3 years ago

3 0

1. Dowload chemistry
2. Go to molar mass and then write the chemical compound and it will tell you the total mass.
3. Round the number like if it 17.9 to 18 g/mol.
4. The total grams divide to 18g/mol and it give you the number of moles

You might be interested in

What does an electricity neutral atom have the same number of?

tiny-mole [99]

d) protons and electrons.

7 0

2 years ago

Read 2 more answers

If you have a fever, and your temperature is 39C what is your temperature in Fahrenheit.

Vadim26 [7]

The formula to convert from Celsius to Fahrenheit is F = 9/5C + 32 or F = (C*1,8)+32

F = 9/5*39 + 32 = 70,2 + 32 = 102,2° F

3 0

4 years ago

Which element below is the most reactive?

const2013 [10]

Answer: Chlorine

Explanation: Chlorine has an atomic number of 17 and a configuration of 2, 8, 7. In the outermost shell, it has 7 seven electrons which means that it needs just one more electron to attain an octet configuration in that shell. Therefore it's can react quickly with any nearby nucleophile. Chlorine is more stable as a molecule (Cl2) because that way, it's in a covalent bond with itself and each chlorine atom in the molecule attains an octet. It's is also more stable as a Chloride ion (Cl-). Yes, Hydrogen (H) has a single electron in it's single shell and requires just one electron to attain a stable duplet configuration but it's not as reactive as the Cl because that single electron is closer to the nucleus and it's held firmly by the nuclear charge preventing it from being highly reactive. Unlike hydrogen, chlorine atom has 2 more shells shielding the outermost shell from the effect of the nuclear charge, hence, it's willing to accept electron from a donor. Oxygen need 2 more electrons to attain an octet in it's outermost shell considering it's configuration of 2,6. But in the presence of electrons, Cl would pick up electron faster than Oxygen since it requires just one. Neon on the other hand is a noble gas. It's shells are completely filled. considering it's configuration of 2,8, it has no space to accept electrons and cannot donate either. Hence, no room for reactivity.

8 0

3 years ago

Read 2 more answers

A block of ice with a total mass of of 25 grams is beginning to melt. How will this physical change affect the mass of the block

NISA [10]

It does not affect the mass, it only affects the outwards appearance of the ice/water.

7 0

4 years ago

6. What is the pressure of 0.60 moles of a gas if its volume is 10.0 liters at 35.0°C?

denis-greek [22]

Answer: The pressure inside the cylinder will be 1.5 atm. The pressure can be calculated using the Ideal Gas Equation which relates the pressure, volume, temperature, and amount of gas to each other.

Further Explanation

The Ideal Gas Equation is:

$PV = nRT$