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ra1l [238]
2 years ago
15

What happens when two aqueous solutions are combined in a precipitation reaction and no precipitate is formed?   A. The solution

s have been neutralized     B. There's no reaction     C. A solubility reaction has taken place     D. An acid-base reaction has taken place
Physics
1 answer:
inysia [295]2 years ago
5 0

There's no reaction for me.

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PLEASE HELP FAST Five-gram samples of brick and glass are at room temperature. Both samples receive equal amounts of energy due
suter [353]

Answer:

1.The temperature of each sample will increase by the same amount

Explanation:

This is because, since their specific heat capacities are the same and we have the same mass of each substance, and the same amount of energy due to heat flow is supplied to both the glass and brick at room temperature, their temperatures would thereby increase by the same amount.

This is shown by the calculation below

Q = mcΔT

ΔT = Q/mc where ΔT = temperature change, Q = amount of heat, m = mass of substance and c = specific heat capacity of substance.

Since Q, m and c are the same for both substances, thus ΔT will be the same.

So, the temperature of each sample will increase by the same amount

6 0
2 years ago
As the water molecules heat up they become more dense and float to the top. True or False
miss Akunina [59]

Answer: False but read why

Heated water molecules expands ( become less dense) but they do float to the top.

8 0
3 years ago
A 20 liter cylinder of helium at a pressure of 150 atm and a temperature of 27ÁC is used to fill a balloon at 1.00 atm and 37ÁC.
djyliett [7]

<u>Answer</u>

D) 3100 Liters


<u>Explanation</u>

To get the volume if the balloon you need to use the combined equation of the low of gases.

P₁V₁/T₁ = P₂V₂/T₂

(20×150)/(27+273) = (1×V₂)/(37+273)

3000/300 = V₂/310

10 = V₂/310

V₂ = 10 × 310

    = 3100 Liters


7 0
2 years ago
Read 2 more answers
What mass of a material with density Ï is required to make a hollow spherical shell having inner radius r1 and outer radius r2?
inysia [295]
<span>Yes, there are! r1 and r2 are numbers. The volume of the hollow shell is 4 π 3 ( r 3 1 − r 3 2 ) 4π3(r13−r23). Now multiply by ρ to get the mass.</span>
3 0
2 years ago
Which of the following is true about plants and cellular energy?
kkurt [141]

Answer:

D

Explanation:

6CO² + 6H²O > sunlight, chlorophyll, enzymes > C⁶H¹²O⁶ + 6O²

3 0
3 years ago
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