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3 years ago

Please help ASAP pleas help right answer please

Chemistry

1 answer:

Otrada [13]3 years ago

5 0

It is -2 because the charge will be at zero and electrons lower the charge

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I give Brainliest!

Andrej [43]

Another name for them are called groups or families.

3 0

3 years ago

How did the uncertainty principle influence thinking about the arrangement of electrons in atoms?

Vlad [161]

Answer:

Heisenberg's Uncertainty Principle states that there is inherent uncertainty in the act of measuring a variable of a particle. Commonly applied to the position and momentum of a particle, the principle states that the more precisely the position is known the more uncertain the momentum is and vice versa.

3 0

4 years ago

Read 2 more answers

For each of the following amounts, calculate the mass

nalin [4]

The masses of the following amount of compound are as follows:

a. 2080.12 grams of barium iodide

b.1139.2 grams of sulphur dioxide

c. 96.25 grams of AspirinTM

d. 27.144 grams of magnesium nitrite

The molarity formula is represented as follows;

molarity = mass / molar mass

Recall we are ask to find the masses of the compounds. Therefore,

mass = molarity × molar mass

a 5.32 mol barium iodide, BaI₂

molarity = 5.32 mol

molar mass of BaI₂ = 137 + 127(2) = 137 + 254 = 391 g/mol

mass = 5.32 × 391 = 2080.12 grams.

b. ) 17.8 mol sulphur dioxide, SO₂

molarity = 17.8 mol

molar mass of SO₂ = 32 + 32 = 64 g /mol

mass = 17.8 × 64 = 1139.2 grams.

c. 1.25 mol AspirinTM, CHO₄

molarity = 1.25 mol

molar mass of CHO₄ = 12 + 1 + 64 = 77 g / mol

mass = 1.25 × 77 = 96.25 grams

d. 0.234 mol magnesium nitrite, Mg(NO₂)₂

molarity = 0.234 mol

molar mass = 24 + 14(2) + 32(2) = 24 + 28 + 64 = 116 g/mol

mass = 116 × 0.234 = 27.144 grams.

learn more on masses here: brainly.com/question/10312739?referrer=searchResults

6 0

2 years ago

The temperature is -14°C the air pressure in an automobile tire is 149K PA if the volume does not change what is the pressure af

Jet001 [13]

Answer: The pressure after the tire is heated to 17.3°C is 167 kPa

Explanation:

To calculate the final temperature of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

$\frac{P_1}{T_1}=\frac{P_2}{T_2}$