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3 years ago

All forces produce motion. True False

Chemistry

2 answers:

Eva8 [605]3 years ago

8 0

The answer is True , because all forces do produce motion

blondinia [14]3 years ago

6 0

Answer:

True

Explanation:

For every action force there is a reaction force according to Newtons third law so all forces produce motion.

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What mass of NaCl is dissolved in 150 g of water in a .050 msolution?

mart [117]

Answer:

0.4383 g

Explanation:

Molality is defined as the moles of the solute present in 1 kg of the solvent.

It is represented by 'm'.

Thus,

$Molality\ (m)=\frac {Moles\ of\ the\ solute}{Mass\ of\ the\ solvent\ (kg)}$

Given that:

Mass of solvent, water = 150 g = 0.15 kg ( 1 g = 0.001 g )

Molality = 0.050 m

So,

$0.050=\frac {Moles\ of\ the\ solute}{0.15}$

$Moles = 0.050\times 0.15\ mol= 0.0075\ mol$

Molar mass of NaCl = 58.44 g/mol

Mass = Moles*Molar mass = $0.0075\times 58.44\ g$ = 0.4383 g

6 0

4 years ago

Which describes an alkaline solution? pH less than 7 pH equal to 7 basic acidic

Solnce55 [7]

Alkaline solutions are basic so answer is C basic

4 0

3 years ago

Read 2 more answers

You are given a sample of several compounds to separate by paper chromatography. You draw a pencil line exactly 1.00 cm from the

Pavel [41]

Answer:

a) 6.3 cm

b) 8.0 cm

c) 0.7875

Explanation:

(a) The compound has moved above upto 7.3 cm from the bottom of the paper. Let us assume that line is drawn at 1.0 cm mark as the origin of spot. \

Distance traversed by compound= 7.3 - 1.0 cm = 6.3 cm

(b) Distance traversed by the solvent = 9.0 - 1.0 cm = 8.0 cm

= 6.3/8.0 = 0.7875

7 0

3 years ago

State the change in energy that occurs in order to break the bonds in the hydrogen molecules, H2(g) so it can react with O2(g) t

Gemiola [76]

Answer:

Explanation:

Energy is absorbed to break bonds. Bond-breaking is an endothermic process. Energy is released when new bonds form. Bond-making is an exothermic process.

BRAINLY PLZ

8 0

3 years ago

The formula for zirconium(VI) dichromate

Iteru [2.4K]

Answer:

Zr(Cr2O7)2

Explanation:

7 0

3 years ago