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3 years ago

Why is the chemical formula magnesium sulfide written as MgS and NOT Mg2S2?

2 answers:

6 0

Because you need only 1 atom of magnesium and 1 atom of sulfur to produce magnesium sulfate. Writing a two after each is not correct as that would be dimagnesium disulfide.

myrzilka [38]3 years ago

6 0

Answer:

the answer is c

Explanation:

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Jenny wants to determine if a new brand name washing detergent is better than her old detergent she washed ten dirty t-shirts wi

katovenus [111]

Answer:

Independent variable: washer detergent

Dependent varaible: cleaing power of effectivenes of the detergent.

Explanation:

When an experiiment is performed there exists one independent variable, one dependent variable, and some other variables that must be controlled.

The goal of the experiment is to test a hypothesis, which is a statement that relates an effect with a cause and that must be proved true or false.

The effect in the dependent variable, and the cause is the independent variable.

Jenny (the scientist) wants to show how an effect or phenomenun, the dependent variable, is explained by the explanatory, independent, variable.

In the stated experiment, Jenny wants to know how the effectiveness of a new brand detergent and an old one compare with each other. Therefore, she designs a test in which she will determine how the brand of detergent may explain (explanatory or independent variable) the cleaning power or effectiveness, the dependent variable.

Jenny only can manipulate the independent variable and observe the effect on the dependent variable.

To be conclusive, other variables must be controlled, like the fabric and the amount of dirt of the t-shirts.

4 0

4 years ago

A wall lizard has adhesive pards in the limbs true or false plz help me

Leto [7]

True lizards can stick to surfaces because their bulbous toes are covered in hundreds of tiny microscopic hairs called setae

5 0

3 years ago

Newton's 3rd law of motion states that "every action has an equal and opposite reaction." A golf ball was hit with force of 200

likoan [24]

Let’s say you’re hitting the golf ball with a golf club. Therefore, using the 3rd law to explain it... the golf ball will hit the club back. The reason why the ball moves, is because it can only sustain a certain amount of force.
Here’s another example:
https://physics.stackexchange.com/questions/150335/newtons-third-law-and-punching-a-glass-or-a-feather

7 0

4 years ago

For every _______ over 50 mph, your chances of being seriously injured, disfigured, or killed are doubled.

user100 [1]

Answer:

10 mph

Explanation:

Exceeding speed limit is one of the major causes of road accident.

Crash severity increases with the speed of the vehicle at impact.

The probability of death, disfigurement, or debilitating injury grows with higher speed at impact.

The above consequences double for every 10 mph over

50 mph that a vehicle travels.

7 0

3 years ago

Read 2 more answers

What has affected almost every aspect of modern sports?

Semenov [28]

Technology has affected almost every aspect of modern sports.

Answer: Option A

<u>Explanation:</u>

Modern sports consists of outdoor games and games related to having physical exercise of the body. But nowadays, technology had made the outdoor games as video games and these video games are so realistic to view that it makes the player addicted and attracted to the video games.

So in this technology, the player should use less or no physical strength to win a video games related to modern sports instead it is played on smart phones, laptops or other visible devices.

Thus, the environment of playing in a group and doing physical work for playing different games are mostly affected with rise in technology which produced realistic video games. Thus technology affects the aspects of modern sports.

6 0

3 years ago