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2 years ago

What is a diffusion, suspension, and colloid?

1 answer:

4 0

Answer: Colloidal suspensions are dispersions of small particles, ranging in size from 1 nanometer to 1 micrometer, in a solvent. ... This action prevents the colloid particles from settling out of the solvent. More importantly, Brownian motion contributes to the diffusion of colloid particles through the solution.

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Please am confused and need help

alex41 [277]

Answer:

1. C

2. C

3. A

4. C

5. True

6. C

Explanation:

1. C The answer is conduction because the heat was transferred through direct contact.

2. C The answer convection because the heat was transferred through a medium (liquid/gas).

3. A The answer is conduction because the heat was transferred through direct contact.

4. C The answer is radiation because the heat was transferred through thermal emission.

5. True. This is because the air that is warmed rises, causing the cool air to replace it. You can picture it like the scenario in question 2.

6. C

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3 years ago

Why do plants link thousands of monosaccharides together to form polysaccharides such as starch?

Fittoniya [83]

Answer: 2

Explanation:

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2 years ago

How many significant figures are in 0.00102?

zaharov [31]

Answer:

Explanation:

102 are significant figures

7 0

2 years ago

Read 2 more answers

Hydrogen gas and nitrogen gas react to form ammonia gas. What volume of ammonia would be produced by this reaction if 5.53 mL of

lina2011 [118]

Answer:

5.53 mL of hydrogen will produce 3.6867 mL of Ammonia

Explanation:

The complete balance equation for the given reaction is

N2 + 3H2 --> 2 NH3

Thus, 3 moles of hydrogen produces 2 moles of NH3

Hence, the volume of ammonia produced = 5.53 * (2/3) = 3.6867 mL

Hence, 5.53 mL of hydrogen will produce 3.6867 mL of Ammonia

6 0

3 years ago

2.998x10^8 m/s is how many kilometers per hour

Alex

1.079 x 10⁹ km/h

<h3>Further explanation</h3>

2.998 x 10⁸ m/s has been known as the speed of light.

Let us convert the unit m/s to km/hour.

Change in unit length:

If 1 km = 1,000 cm, then $\boxed{ \ 1 \ cm = 0.001 \ km \ } \rightarrow \boxed{ \ 1 \ cm = 10^{-3} \ km \ }$

Change in unit time:

If $\boxed{ \ 1 \ hour = 60 \ minutes = 3,600 \ seconds \ }$ , then $\boxed{ \ 1 \ second = \frac{1}{3,600} \ hours \ }$

The Process:

$\boxed{ \ 2.998 \times 10^8 \ \frac{m}{s} \times \frac{10^{-3} \ km}{1 \ m} \times \frac{1 \ s}{\frac{1}{3,600} \ hours} \ }$

$\boxed{ \ 2.998 \times 10^8 \times 10^{-3} \ km \times \frac{3,600}{hours} \ }$

$\boxed{ \ 10,792.8 \10 \times 10^5 \ \frac{km}{hour} \ }$

Remember, we must write the results in scientific notation, i.e.,

$\boxed{\ a \times 10^b \ } \rightarrow \boxed{ \ 1 \leq a < 10 \ } \rightarrow \boxed{ \ b \ must \ be \ an \ integer \ }$

Thus the result of unit conversion is

$\boxed{ \ \boxed{ \ 2.998 \times 10^8 \ m/s \ } \rightarrow \boxed{ \ 1.079 \times 10^9 \ km/h} \ }$

<h3>Learn more</h3>

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Does Marcus pay tax? brainly.com/question/11018983
Express your answer numerically in US dollars to three significant figures. brainly.com/question/3959122

Keywords: speed of light, convert, m/s to km/h, unit length, time, hours, minutes, second, scientific notation

5 0

3 years ago

Read 2 more answers