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wariber [46]
3 years ago
9

Describe the factors that affect surface and deep water currents

Chemistry
1 answer:
olchik [2.2K]3 years ago
7 0
I’m having a hard time understanding your question
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Explain why potassium and argon react together
Sauron [17]
Because they obtain different properties that have explosive reactions to one another
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3 years ago
4. A serving of cereal contains about<br> of protein<br> 9 mg<br> 9 g<br> 90 g<br> 9 kg
aleksandrvk [35]

Answer:

probably 90 g

Explanation:

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3 years ago
What keeps galaxies togther? How?
aleksklad [387]
Tough question, I would suggest using Google maybe, or just plain out asking your science teacher.
8 0
3 years ago
Vitamin K is involved in normal blood clotting. When 0.802 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point
xenn [34]

Answer:

Molar mass of vitamin K = 450.56\frac{g}{mol}[/tex]

Explanation:

The freezing point of camphor = 178.4 ⁰C

the Kf of camphor =  37.7°C/m

where : m = molality

the relation between freezing point depression and molality is

Depression in freezing point = Kf X molality

Where

Kf = cryoscopic constant of camphor

molality = moles of solute dissolved per kg of solvent.

putting values

2.69°C = 37.7°C/m X molality

molality = 0.0714 mol /kg

molality=\frac{molesofvitaminK}{massofcamphor(kg)}=\frac{moles}{0.025}

moles of vitamin K = 0.0714X0.025 = 0.00178 mol

we know that moles are related to mass and molar mass of a substance as:

moles=\frac{mass}{molarmass}

For vitamin K the mass is given = 0.802 grams

therefore molar mass = \frac{mass}{moles}=\frac{0.802}{0.00178}=450.56\frac{g}{mol}

7 0
2 years ago
Simple question ill name u brainiest
BigorU [14]

Answer:

Test tube :)

Explanation:

4 0
3 years ago
Read 2 more answers
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