All categories

2 years ago

Magnesium reacts with oxygen gas to form magnesium oxide.

SAT

1 answer:

monitta2 years ago

3 0

Answer:

True

Explanation:

When the magnesium metal burns it reacts with oxygen found in the air to form Magnesium Oxide. A compound is a material in which atoms of different elements are bonded to one another. Oxygen and magnesium combine in a chemical reaction to form this compound. After it burns, it forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product. This is an exothermic reaction. An exothermic reaction is a term that describes a chemical reaction in which there is a net release of energy (heat).

You might be interested in

The professor informs the class that there will be a test next week. what is the probability that a randomly selected student st

marusya05 [52]

The probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade is: D. 0.80.

<h3>How to calculate the probability?</h3>

In this exercise, you're required to determine the probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade. Thus, we would apply Bayes's theorem.

Let S represent studied for.

Let B represent a score of B or higher grade

Therefore, we need to find P(S|B):

$S|B = \frac{B|S \times S}{B|S \times S\; +\; B|S' \times S'} \\\\S|B = \frac{0.55 \times 0.6}{0.55 \times 0.6 \;+ \;0.2 \times 0.4}\\\\S|B =\frac{0.33}{0.33 + 0.08} \\\\S|B =\frac{0.33}{0.41}$

S|B = 0.80.

Read more on probability here: brainly.com/question/25870256

#SPJ1

<u>Complete Question:</u>

At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they will get a B or higher on the tests. If they do not study, there is a 20% chance that they will get a B or higher on the tests. The professor knows from prior surveys that 60% of students study for the tests. The probabilities are displayed in the tree diagram.

5 0

2 years ago

Are there other universes?

a_sh-v [17]

Answer:

Explanation:

7 0

3 years ago

Read 2 more answers

Who intended to write an epic poem 12 books long? Question 3 options: Francis Drake Sir Walter Raleigh Edmund Spenser William Sh

Sphinxa [80]

Answer:

emund spencer

Explanation:

k12 test got it right have a great day xD

5 0

2 years ago

Which of the following is not a key sign of an alcohol overdose (alcohol poisoning)?

weeeeeb [17]

Alcohol overdose refers to an event whereby an individual consumes above the volume or amount of alcohol concentration which his system could bear. This could result all the responses listed in the option given except :

Having a cool and clammy skin

Consuming excessive amount of alcohol usually result in abnormal function of some body system.

Alcohol overdose usually result in unconscious feeling whereby the individual lacks adequate knowledge of his well being

Having sensation of things which are not present is also a sign which shows that an individual is suffering from alcohol overdose.

Having a cool and clammy skin is usually as a result of the temperature which an individual is exposed to.

Therefore, having a cool and clammy skin is usually not a sign of alcohol overdose.

Learn more :brainly.com/question/24958077

8 0

2 years ago

K+2 - x = 0

ddd [48]

Answer:

Explanation:

k+2-(9)=0

k+2-9=0

k=-2+9

k=7

5 0

3 years ago

Read 2 more answers