3 years ago

Name 3 objects found in the Milky Way galaxy.

Chemistry

1 answer:

dolphi86 [110]3 years ago

5 0

Answer:

The Earth, Stars, and Mars I guess...

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Your science book lies flat on the table waht is true about the force/ s acting on the book

mina [271]

True or false is defined by how u look at the perspective

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3 years ago

Which expression can be used to calculate the density of a 129.5-gram sample of bronze that has a volume of 14.8 cubic centimete

PilotLPTM [1.2K]

Answer:

it would be like 30

Explanation:

just divide the gram by cubic

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3 years ago

1. You are asked to make 200 mls of a 20mM working (diluted) solution of NaCl using a 2M stock solution. Record the volume of 2M

vekshin1

Answer:

The volume of 2M stock solution added = 2 mL

The volume of water = 198 mL

Explanation:

Considering

$Molarity_{working\ solution}\times Volume_{working\ solution}=Molarity_{stock\ solution}\times Volume_{stock\ solution}$

Given that:

$Molarity_{working\ solution}=20\ mM=0.02\ M$

$Volume_{working\ solution}=200\ mL$

$Volume_{stock\ solution}=?$

$Molarity_{stock\ solution}=2\ M$

So,

$0.02\ M\times 200\ mL=2\ M\times Volume_{stock\ solution}$

$Volume_{stock\ solution}=\frac{0.02\times 200}{2}\ mL=2\ mL$

<u>The volume of 2M stock solution added = 2 mL</u>

<u>The volume of water = 200 - 2 mL = 198 mL</u>

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3 years ago

Put 34,100,000 in scientific notation

ss7ja [257]

Answer:

3.41 x 10^7

Explanation:

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4 years ago

What is the Kc for the following reaction at equilibrium at 500∘C if [N2]= 0.41 M , [H2]= 0.41 M , and [NH3]= 2.2 M ? N2(g)+3H2(

viva [34]

Answer:

answer po Yan hope it help

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3 years ago