3 years ago

What is Most of an atom ?

Chemistry

2 answers:

Kitty [74]3 years ago

6 0

Either protons or neutrons

masya89 [10]3 years ago

3 0

Most of an atom is where the center is called the Neutron meanwhile the Electron and Proton are orbiting around it. That my friend is the current model of the atom. There is many other model of atom which represent a plum pudding/chocolate chip cookies.

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Please help

KonstantinChe [14]

Answer: There are 0.5 grams of barium sulfate are present in 250 of 2.0 M $BaSO_{4}$ solution.

Explanation:

Given: Molarity of solution = 2.0 M

Volume of solution = 250 mL

Convert mL int L as follows.

$1 mL = 0.001 L\\250 mL = 250 mL \times \frac{0.001 L}{1 mL}\\= 0.25 L$

Molarity is the number of moles of solute present in liter of solution. Hence, molarity of the given $BaSO_{4}$ solution is as follows.

$Molarity = \frac{mass}{Volume (in L)}\\2.0 M = \frac{mass}{0.25 L}\\mass = 0.5 g$

Thus, we can conclude that there are 0.5 grams of barium sulfate are present in 250 of 2.0 M $BaSO_{4}$ solution.

7 0

3 years ago

What is the difference between the units rem and rad?

LenKa [72]

Answer:

Rem is used to measure biological risk, and rad is used to measure absorbed radiation.

Explanation:

6 0

3 years ago

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STatiana [176]

Answer:

I think it is three times I'm not sure

5 0

3 years ago

Read 2 more answers

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Ne4ueva [31]

See the attached image.

8 0

3 years ago

Write at least three characteristics of acids and three characteristics of bases. These characteristics should be what makes the

ki77a [65]

Characteristics of acid

-It tastes sour
-It reacts with metals and carbonates
-It turns blue litmus paper red

Characteristics of base

-It tastes bitter
-It feels slippery
-It turns red litmus paper blue.

3 0

2 years ago