A student flips four different coins at the same time. Which choice shows all of the possibilities for the results of the coin toss? (H = heads, T = tails)

A HH, TT, HT, TH

B HHHT, HTTT, HHTT

C HHH, TTT, HTH, HTT

D HHHH, HTHH, HTTH, HTTT, TTTT

7 0

3 years ago

I will give brainliest to correct answer - no links

WINSTONCH [101]

Answer:

C - 23cm

Explanation:

6 0

3 years ago

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A scientist finds that one volume of an unknown gas X combines with two volumes of another gas Y to form two volumes of a new ga

MariettaO [177]

Answer:

Gas X

Explanation:

The given reaction can be written in the form of chemical equation as shown below as:

$X+2Y\rightarrow 2XY_2$

According to law of conservation of mass, the moles of each substance in the reaction must be equal on both reactant and product side.

Also, the question asks for the gas which is diatomic. $XY_2$ cannot be diatomic as the formula contains 3 atoms.

Between gas X and gas Y , <u>X has to be diatomic for the reaction to balance </u>as:

$X_2+2Y\rightarrow 2XY_2$

3 0

4 years ago

How many significant figures are there in the number 0 04560700?​

How many significant figures are there in the number 0 04560700?