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4 years ago

I need vocab word characteristics / answers asap but i can’t find anything

Chemistry

1 answer:

solniwko [45]4 years ago

7 0

Some vocabulary word characteristics are active,loyal,humble,gullible and resourceful

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One afternoon you were riding in your car and your mother had to slam on the brakes to prevent hitting a squirrel.

lianna [129]

Answer:

that squirrel would be dead if it was my mom

Explanation:

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3 years ago

If the temperature of an object is 335 K, how would this be expressed on the Celsius scale?

Arturiano [62]

C it the correct answer

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3 years ago

Density=6 g/ml Volume= 42ml

tino4ka555 [31]

Answer: 7 g

Explanation: 42/6=7

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3 years ago

Calculate the number of grams of solute needed to make each of the following solutions:

AleksAgata [21]

Explanation:

(w/w) % : The percentage mass or fraction of mass of the of solute present in total mass of the solution.

$w/w\%=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100$

1) 100 g of 0.500% (w/w) NaI

Mass of solution = 100 g

Mass of solute = x

Required w/w % of solution = 0.500%

$0.500\%=\frac{x}{100 g}\times 100$

$x=\frac{0.500\times 100 g}{100}=0.500 g$

0.500 grams of solute needed to make 100 g of 0.500% (w/w) NaI.

2) 250 g of 0.500% (w/w) NaBr

Mass of solution = 250 g

Mass of solute = x

Required w/w % of solution = 0.500%

$0.500\%=\frac{x}{250 g}\times 100$

$x=\frac{0.500\times 250 g}{100}=1.25 g$

1.25 grams of solute needed to make 250 g of 0.500% (w/w) NaBr

3) 500 g of 1.25% (w/w) glucose

Mass of solution = 500 g

Mass of solute = x

Required w/w % of solution = 1.25%

$1.25\%=\frac{x}{500 g}\times 100$

$x=\frac{1.25\times 500 g}{100}=6.25 g$

6.25 grams of solute needed to make 500 g of 1.25% (w/w) (glucose)

4) 750 g of 2.00% (w/w) sulfuric acid.

Mass of solution = 750 g

Mass of solute = x

Required w/w % of solution = 2.00%

$2.00\%=\frac{x}{750 g}\times 100$

$x=\frac{2.00\times 750 g}{100}=15.0 g$

15.0 grams of solute needed to make 750 g of 2.00% (w/w) sulfuric acid.

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3 years ago

Water that is on land. Some sources are rain or melting snow.

AleksandrR [38]

Runoff from snowmelt is a major component of the global movement of water, possibly even if you live where it never snows.

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4 years ago