A, is the answer because pH measure the acidity it test the "water that you drink is ok to drink"
The reason why the presence of dusty disks were surprising is because; A) such systems could not have formed planets.
<h3>
What is a dusty disk?</h3>
A dusty disk is a circumstellar disk of dust and debris found in the orbit around a star and sometimes these disks contain prominent rings.
Now, these disks around young stars are made up of 99% gas and 1% dust and this small amount of dust is still sufficient to make the disks opaque and dark at visible wavelengths.
Now, the dust may be 1% but it is 1 million times more than that found in our solar planets and it orbits at a distance from the star that is similar to the orbits of Earth and Venus around our own Sun.
The missing options are;
A) such systems could not have formed planets.
B) their composition differs so much from their stars.
C) their instruments were not thought to be powerful enough to make such a measurement.
D) gas and dust should be rapidly ejected into space by the radiation from a hot star.
Read more about Dusty Disks at; brainly.com/question/25624188
Answer:
One professional technique to let out your frustration about a work situation is to distract yourself.
The option that is consistent with the above payoff matrix is;
C: Increase Subscription Price is a dominant strategy for Daily Voice.
<h3>Payoff Matrix</h3>
The table showing the matrix is missing and so i have attached it.
- When Town Herald does not change the subscription price, then it is obvious that the best strategy for daily voice is to increase subscription price because $600 > $500 from the matrix table.
Thus, the correct option that is consistent with the above payoff matrix is Option C
The missing options are;
a. Do Not Change Subscription Price is adominant strategy forDaily Voice.
b. Do Not Change Subscription Price is adominant strategy forTown Herald.
c. Increase Subscription Price is a dominantstrategy for daily Voice.
d. Increase Subscription Price is a dominantstrategy forTown Herald.
e. There are no dominant strategies in the abovepayoff matrix
Read more about payoff matrix at; brainly.com/question/16158065
1. The correct statement that describes a Redox reaction is ( D ) ; A chemical reaction in which electrons are transferred between reactants.
2. The chemical formula that shows the correct subscripts is ( D ) BeF₂
3. The type of reaction that is shown is ; ( C ) decomposition reaction
A Redox reaction ( oxidation-reduction reaction ) involves the exchange/transfer electrons between reactants and the change in the oxidation number of the molecules involved in the reaction changes when an electron is either gained or lost.
Given that the Be has four ( 4 ) electrons and Fluorine has nine ( 9 ) electrons when they combine Fluorine will be left with an excess of electrons therefore the correct chemical formula will be BeF₂
The breaking up of an element into its smaller parts in a chemical reaction is known as a decomposition reaction.
