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3 years ago

The amount of matter in an object is called _____. gravity mass volume weight

Chemistry

2 answers:

Leya [2.2K]3 years ago

7 0

mass - hope this helps!!

Firlakuza [10]3 years ago

4 0

The answer is Mass☺️.

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You are given a solution of HCOOH (formic acid) with an approximate concentration of 0.20 M and you will titrate this with a 0.1

jeka57 [31]

Answer:

$\boxed{\text{36 mL}}$

Explanation:

1. Write the balanced chemical equation.

$\rm HCOOH + NaOH $ \longrightarrow$ HCOONa + H$_{2}$O$

2. Calculate the moles of HCOOH

$\text{Moles of HCOOH} =\text{20.00 mL HCOOH } \times \dfrac{\text{0.20 mmol HCOOHl}}{\text{1 mL HCOOH}} = \text{4.00 mmol HCOOH}$

3. Calculate the moles of NaOH.

$\text{Moles of NaOH = 4.00 mmol HCOOH } \times \dfrac{\text{1 mmol NaOH} }{\text{1 mmol HCOOH}} = \text{4.00 mmol NaOH}$

4. Calculate the volume of NaOH

$c = \text{4.00 mmol NaOH } \times \dfrac{\text{1 mL NaOH }}{\text{0.1105 mmol NaOH }} = \textbf{36 mL NaOH }\\\\\text{The titration will require }\boxed{\textbf{36 mL of NaOH}}$

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7) Facilitated diffusion is

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The passive movement of molecules or ions across a plasma membrane by means of a transports protein located in the plasma membrane

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A student wants to test if giving dogs a toy to play with makes their tail wag more. He gives dog toys to one group, while anoth

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Answer:

Experimental: the dogs who get the toys

Control: the dogs who dont recieve a toy

Explanation:

expermental is the group that recieved the tested variable in this case that being the toy

control is the group that doesn't recieve the tested variable

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Answer:

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Explanation:

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