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2 years ago

Help me please :3 :3, :3 ;3

Chemistry

1 answer:

Lilit [14]2 years ago

7 0

The Red-cockaded woodpecker is most likely to live in Piney Woods.

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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

2 years ago

Hiii please help me to balance the chemical equation:

Fed [463]

Answer:

2Na + 2H2O = 2NaOH + H2

Explanation:

hope this helps

4 0

2 years ago

What substance is used to standardize the naoh solution during the part 2 activities?.

dangina [55]

Answer:

GAS strand

Explanation:

Used to standarized strand to make solution to fasten the calculation

4 0

2 years ago

Identify the chemical reaction Below: KOH + AlCl3 + AlCl3+ KCI

zubka84 [21]

Answer:

Double displacement reaction

Explanation:

Given expression:

KOH + AlCl₃ → Al(OH)₃ + KCl

The reaction shown above is a double displacement reaction or double decomposition or double replacement reaction. This type of reaction involves an actual exchange of partners to form new compounds.

For example:

AB + CD → AD + CB

Such reactions are driving by one of the following factors:

formation of an insoluble compound
formation of water or any other non-ionizing compound
liberation of a gaseous product

7 0

2 years ago

What contains 15 neutrons and 13 protons?

Alex

An isotope of Aluminium, a 'normal' Al atom would have a proton number of 13 (as this does not change in isotopes of the same element) but only 14 neutrons. This isotope of Al has 1 extra neutron than regular Al.

7 0

2 years ago