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3 years ago

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What is the termchemistry

2 answers:

kotegsom [21]3 years ago

5 0

Answer:

Chemistry is the scientific study of the structure of substances, how they react when combined and how they behave under different situations.

dimulka [17.4K]3 years ago

3 0

Answer:

The branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

Explanation:

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Methane is the chief constituent of petroleum fuel <br> A:yes <br> B:no

Ad libitum [116K]

Yes

Methane also is the chief constituent of natural gas, which contains from 50 to 90 percent methane (depending on the source), and occurs as a component of firedamp (flammable gas) along coal seams.

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3 years ago

If the percent transmittance is is 64.9 in 0.2M standard CuSO4, what is the absorption?

Natali [406]

Explain it a little more ?

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3 years ago

Which of the following statements is true regarding both theories and laws?

Mariana [72]

Answer:

D. Supported by observations

Explanation:

Because theories change over time, they both need to be proven, they do not go off of consensus, but they do need to be supported by observations.

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3 years ago

The volume of a cube is calculated by using the following formula: l x h x w. The length (l), height (h), and width (w) of a met

aliya0001 [1]

Answer:

8.909466637830

Explanation:

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8 0

3 years ago

Question 2 (0 points)

bazaltina [42]

Answer:

The probability of spinning red with the spinner or rolling an odd number with the die is $\dfrac{1}{8}$

Explanation:

Given that,

Total color in spinner = 4

Let the area of four parts is equal in the spinner.

We need to calculate the probability of spinning red

Using formula of probability

$P(A) = \dfrac{Number\ of\ red\ color\ outcome}{Total\ number\ of\ colors\ in\ the\ spinner}$

Put the value into the formula

$P(A)=\dfrac{1}{4}$

We need to calculate the probability of odd number of the die

Using formula of probability

$P(B) = \dfrac{Number\ of\ odd\ digits\ outcome}{Total\ number\ of\ digits\ in\ the\ die}$

Put the value into the formula

$P(B)=\dfrac{3}{6}$

$P(B)=\dfrac{1}{2}$

We need to calculate the probability of spinning red with the spinner or rolling an odd number with the die

Using formula of probability of two events which is independent

$P(A\ and\ B)=P(A)\times P(B)$

Put the value into the formula

$P(A\ and\ B)=\dfrac{1}{4}\times\dfrac{1}{2}$

$P(A\ and\ B)=\dfrac{1}{8}$

Hence, The probability of spinning red with the spinner or rolling an odd number with the die is $\dfrac{1}{8}$

5 0

3 years ago