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3 years ago

Which of the following is the correct scientific notation for 0.00000862?

Chemistry

2 answers:

Sonja [21]3 years ago

6 0

8.62 *10^6 is the answer

Molodets [167]3 years ago

3 0

862^-10 my friend this is the answer

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The Nutrition Facts label for crackers states that one serving contains 19 g of carbohydrate, 4 g of fat, and 2 g of protein. Wh

sp2606 [1]

Answer: The amount of kilocalories contained in the given serving of crackes is 0.120 kCal

Explanation:

As per the USDA:

Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram

We are given:

Mass of fat in the crackers = 4 g

Mass of carbohydrates in the crackers = 19 g

Mass of protein in the crackers = 2 g

Conversion factor used: 1 kCal = 1000 Cal

Applying unitary method:

For Fat:

1 gram of fat provides 9 calories

So, 4 gram of fat will provide = $\frac{9}{1}\times 4=36Cal=0.036kCal$

For Carbohydrates:

1 gram of carbohydrates provides 4 calories

So, 19 gram of carbohydrates will provide = $\frac{4}{1}\times 19=76Cal=0.076kCal$

For Proteins:

1 gram of proteins provides 4 calories

So, 2 gram of fat will provide = $\frac{4}{1}\times 2=8Cal=0.008kCal$

Total kilocalories per serving = [0.036 + 0.076 + 0.008] kCal = 0.120 kCal

Hence, the amount of kilocalories contained in the given serving of crackes is 0.120 kCal

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3 years ago

Cacl2 is an example of

11111nata11111 [884]

An ionic bond because ca is a metal and cl is a nonmetal which is an ionic bond

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3 years ago

How did Mendeleev set up his Periodic Table of Elements?

Ksju [112]

He set up his periodic table by the atomic mass

8 0

2 years ago

2 PUIS

avanturin [10]

Answer: C the study of living things

Explanation:

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3 years ago

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What is the organism that is harmed in parasitism called? (3 points)

SVEN [57.7K]

Answer:

B Host

Explanation:

this is due to the fact that the organism is hosting the parasite

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3 years ago