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Alex17521 [72]
2 years ago
8

6 State Your Claim Make a claim about how you could separate a mixture of rocks and sand.

Chemistry
1 answer:
Sloan [31]2 years ago
4 0

Answer: Sand can be separated from the sand by the process of Sieving. sorry if I'm wrong please give me brainlest

Explanation:

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In an experiment, dilute hydrochloric acid reacts with a white solid and bubbles of gas are produced. If this gas is bubbled thr
Andrej [43]

Answer:

Explanation:

Carbon dioxide reacts with calcium hydroxide solution to produce a white precipitate of calcium carbonate. Limewater is a solution of calcium hydroxide. If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.

Hope this helps you

6 0
3 years ago
The temperature of a 500 ml sample of gas increases from 150 k to 300 k. what is the final volume of the sample of gas, if the p
seropon [69]
Upon a constant pressure (P), volume (V) of a gas will vary in direct proportion to changes in temperature (T). So V1/T1 = V2/T2
V2 = V1T2/T1 = (500)(300)/150
V2 = 150000/150 = 1000 mL
5 0
3 years ago
You deposit $2000 in a bank account that pays 3% annual interest. Find the balance after 8 years if the interest is compounded q
Phantasy [73]

Answer:

2480‬$

Explanation:

2000$*(3%=0.03)=60$

multiply by 8 = 480$

then by adding it to 2000 = 2480$

5 0
4 years ago
Which one of the following statements is not true?
lana66690 [7]

Answer:

When magma reaches the surface, its dissolved gas content increases is true

<u>Explanation</u>:

The volcanic eruptions happen because of magma that is expelled on the earth’s surface. At the earth’s depth, all magma have gas dissolved in liquid. When the pressure has decreased the magma rises towards the earth’s surface creating a separate vapour phase.  

As pressure reduces the volume of gas will  expands and giving magma its 'explosive character'. Thus, as magma reaches the surface the dissolved gas content decreases and magma comes out of earth’s surface.

3 0
4 years ago
Water supplies are often treated with chlorine as one of the processing steps in treating wastewater. Estimate the liquid diffus
jekas [21]

Answer:

⇒D_AB= 1.21×10^(-9)

Explanation:

Wike chang  equation is given as:

D_{AB}= \frac{117.3\times10^{-18}\times\(\phi\times M_B)^{0.5}\times T}{\mu\times\nu^{0.6}}

Where

D_AB= diffusivity of chlorine in water

Φ= 2.26 for water as solvent

ν= 0.0484 for chlorine as solute

M_B = Molecular weight of water

τ= temperature=289 K

μ= viscosity = 1.1×10^{-3}

Now putting these values in the above equation we get

D_{AB}= \frac{117.3\times10^{-18}\times\(\2.26\times18)^{0.5}\times289}{\1.1\times10^{-3}\times\0.0484^{0.6}}

⇒D_AB= 1.21×10^(-9)

7 0
3 years ago
Read 2 more answers
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