2 years ago

What are common materials

Chemistry

1 answer:

disa [49]2 years ago

3 0

Steel

Fabric (Cotton, Polyester, Felt)

Plastic

Wood

Paper

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Which of these equations is balanced, and which is not balanced? Explain how you can tell.

disa [49]

Answer:

a is balanced

Explanation:

a) reactant/ product

(2x2)=4c / 4c

(2x6)=12h / 12 h

14o / (8o+6o)=14 o

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3 years ago

The measure of how closely a set of measurements are to each other is the best definition for which of the following terms. a er

ahrayia [7]

D. precision. At first glance you can mark out A and B because the answers does not relate to the question. If question had said "what do you call it when the measurement is close to the actual answer" then you would have picked C. So that leaves you D. precision.

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3 years ago

A typical adult human body contains approximately 2.500 L of blood plasma. How many grams of blood plasma are in the typical adu

kirill115 [55]

Answer:

$m=2.575g$

Explanation:

Hello,

In this case, since the density is defined as the ratio of the mass and volume:

$\rho =\frac{m}{V}$

We can compute the mass of blood as follows:

$m=\rho *V=1.03g/L*2.500L\\\\m=2.575g$

Best regards.

7 0

3 years ago

Describe two ways you could demonstrate an acceleration of 2 meters per second squared?

BaLLatris [955]

Answer:

You could do 88 metars

Explanation:

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3 years ago

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using the equaation 2h2+o2-->2h2o if 10.0g of hydrogen are used in the presence of excess oxygen how many grams of water will

astra-53 [7]

Answer:

90g of H2O

Explanation:

2H2 + O2 —> 2H2O

First, we calculate the molar masses of H2 And H20.

Molar Mass of H2 = 2g/mol

Mass conc of H2 from the balanced equation = 2 x 2 = 4g

Molar Mass of H2O = 2 + 16 = 18g/mol

Mass conc of H2O from the balanced equation = 2x18 = 36g

From the equation,

4g of H2 produced 36g of H2O

Therefore, 10g of H2 will be produce = (10x36)/4 = 90g of H2O

7 0

3 years ago

What are common materials​

What are common materials