2 years ago

Biochemistry which studies the chemical composition, structure, and the reaction of compounds found in non-living organisms.

1 answer:

3 0

False. Inorganic chemistry studies the chemical compounds in inorganic, or non-living things such as minerals and metals.

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What is the relationship between the number of gas particles and volume ?

choli [55]

Answer:

V ∝ n

Step-by-step explanation:

Suppose that pressure and temperature are constant.

If you try to force more molecules of air into a balloon, the balloon will expand.

This is an example of <em>Avogadro's Law</em>: the volume of a gas is directly proportional to the number of moles (particles).

V ∝ n

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2 years ago

How many grams of FeCl 3 are in 250. mL of a 0.100 M solution?

Naddika [18.5K]

Answer:

The correct answer is option B

Explanation:

$$Molarity=\frac{Weight}{Molecular \,weight} \frac{1000}{V(in \, ml)}$

Given values,

Molarity of $FeCl_3=0.100M$

Volume of solution, $V=250ml$

Molecular weight of $FeCl_3=162.2$

Substituting this values in Molarity formula, we get

$0.1=\frac{weight}{162.2} \times\frac{1000}{250} $\\$\Rightarrow 16.22=weight\times4$\\$\Rightarrow weight=\frac{16.22}{4} $\\$\therefore weight=4.06g$

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3 years ago

Determine the number of protons and neutrons in plutonium-239 and write its symbol in the form azx.

Verizon [17]

94 protons and 145 neutrons

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2 years ago

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The periodic table is based on an element's

nasty-shy [4]

Answer:

Atomic number

Explanation:

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3 years ago

You have two solutions, both with a concentration of 0.1M. Solution A contains a weak acid with a pKa of 5. The pH of solution A

viktelen [127]

Answer:guguhi

Explanation:

Guggugj

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3 years ago