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nexus9112 [7]
3 years ago
10

When a fluid is heated, what changes occur? It becomes more dense and begins to rise. It becomes less dense and begins to rise.

It becomes more dense and begins to sink. It becomes less dense and begins to sink.
Chemistry
1 answer:
geniusboy [140]3 years ago
4 0
It becomes less dense and begins to rise
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Calculate the molar solubility of ca(io3)2 in each solution below. the ksp of calcium iodate is7.1 × 10−7.
e-lub [12.9K]
In order to find the answer, use an ICE chart:

Ca(IO3)2...Ca2+......IO3- 
<span>some.......0..........0 </span>
<span>less.......+x......+2x </span>
<span>less........x.........2x 
</span>
<span>Ca(IO₃)₂ ⇄ Ca⁺² + 2 IO⁻³
</span>
K sp = [Ca⁺²][IO₃⁻]²
K sp = (x) (2 x)² = 4 x³
7.1 x 10⁻⁷ = 4 x³
<span>x = molar solubility = 5.6 x 10</span>⁻³ M

The answer is 5.6 x 10 ^ 3 M. (molar solubility)
5 0
3 years ago
Read 2 more answers
Which words or phrases identify layers of groundwater?
____ [38]

The ground water refers to water present in the under earth in the cracks or pores or similar spaces.We majorly depends upon this sources of water specially in rural area.

It helps in irrigation and also serve as drinking water supply.

The words or phrases which identify layer of ground water are:

a) water table: the uppermost water saturated layer

b) kettle lake: it is an underground lake (not ground water)

c) Saturation zone : this is the zone of water below the water table

d) undergound lake: this is kettle lake (not ground water)

e) sink hole: Not a layer of ground water

So the layers of ground water are

a) water table

b) saturation zone

5 0
3 years ago
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A child sits on top of a slide at the park. He pushes forward lightly, but does not go down the slide. Pick the sentence that
Vinvika [58]

Answer:

The net force on the child is zero

4 0
3 years ago
9. Calculate the specific heat capacity of titanium if a 43.56 g sample absorbs 0.476 kJ as its temperature changes from 20.5 oC
Shalnov [3]

Answer:

c = 0.528 J/g.°C

Explanation:

Given data:

Mass of titanium = 43.56 g

Heat absorbed = 0.476 KJ  = 476 j

Initial temperature = 20.5°C

Final temperature = 41.2°C

Specific heat capacity = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 41.2°C - 20.5°C

ΔT = 20.7 °C

476 J = 43.56 g × c × 20.7 °C

476 J = 901.692 g.°C × c

c = 476 J / 901.692 g.°C

c = 0.528 J/g.°C  

8 0
3 years ago
Express (3 x 104) (4 x 1023) in scientific notation
jeka57 [31]
1 x 10^28 this what the <span>scientific notation</span>
4 0
4 years ago
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