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3 years ago

Just the first one please

Chemistry

1 answer:

a_sh-v [17]3 years ago

3 0

Answer:

True

Explanation:

Magnetism is a force that is exerted by magnets, whether it be to attract or repel. So, yes. I believe the answer is "true".

Please let me know if you help with anything else. :)

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Solve you will get brainliest and23 points

timurjin [86]

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3 years ago

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A mixture is best described as:

Vesna [10]

The conglomeration of two quantities.

Two quantities that go together to become a new identity.

Here are two different definitions you can put in! Hope this helps! Please give brainliest❤️

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3 years ago

If you start with ten grams of reactants how many grams of product should you get

love history [14]

The sum of the masses of the reactants is equal to the sum of the masses of the products.

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4 years ago

300 moles of sodium nitrite are needed for a reaction. the solution is 0.450 m. how many ml are needed?

miv72 [106K]

Answer:

$\boxed{\text{667 000 mL}}$

Explanation:

$\text{Molar concentration} = \dfrac{\text{moles}}{\text{litres}}\\\\c = \dfrac{n}{v}$

Data:

c = 0.450 mol·L⁻¹

n = 300 mol

Calculation:

$\begin{array}{rcl}0.450 & = & \dfrac{300}{V}\\\\0.450V& = & 300\\\\V & = & \dfrac{300}{0.450}\\\\V & = & \text{667 L} =\textbf{667 000 mL}\end{array}\\\text{The volume of solution needed is }\boxed{\textbf{667 000 mL}}$

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3 years ago

Do all cells have cytoplasm and cell membrane

Irina18 [472]

Yes that is true all cells have cytoplasm and cell membrane! hope this helps! ;D

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4 years ago

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