2 years ago

What atom has 2 electrons, 6 protons and 7 neutrons

1 answer:

7 0

Answer:

Carbon atoms with 7 neutrons have an atomic mass of 13 (6 protons + 7 neutrons = 13). These atoms are the isotope called carbon-13.Jul

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What is the molarity of a solution containing 60. grams of NaOH dissolved in 400. mL of water?

Hunter-Best [27]

Answer: 3.75 M

Explanation:

400 mL = 0.4 L

NaOH has a molar mass of around 40 g/mol.

$\frac{60 grams}{40 g/mol}$ = 1.5 moles

Molarity = $\frac{1.5 moles}{0.4 Liters}$ = 3.75 M

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2 years ago

What is the mass of a liquid that has a volume of 50.0ml and a density of 2.40g/ml?

Iteru [2.4K]

Answer:

120g Using Density Equation.

Explanation:

Density =mass/volume

We need to the solve for the mass.

Mass=Density * Volume

Mass= 2.40 g/ml * 50.0 ml = 120g

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3 years ago

The most simple level of organization in living things is the tissue level.

murzikaleks [220]

The simplest level of organization for living things is a single organelle, which is composed of aggregates of macromolecules. so it is false

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Are CH4 and CH3OH soluble in water?

Serhud [2]

CH4 is not soluble in water

whereas CH3OH is soluble in water.

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2 years ago

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Plot the data points on the graph below and use the corresponding dot colors: 1st data point - blue, 2nd data point - yellow, 3r

yulyashka [42]

Answer:

The answer is an attached file

Explanation:

I hope it'll be useful to you.

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