Answer:
A working model used to test a design is called a
stop
Answer:
The answer is D.
Explanation:
Silver consists of 92.5% silver, and the remaining part is copper. ... Pure silver is not susceptible to tarnish in a pure oxygen environment. However, the copper that is contained in 925 sterling silver may react to the ozone and hydrogen sulfide in the air and cause sterling silver to tarnish.
Hey there!:
That depends on the pH of the water layer. If the water layer is basic or rather just not acidic, it will be in the water layer. If the water layer is acidic, pH 4 or less, it will be in the ether layer. On the question of upper and lower, either has a density of less than one so it will be the upper layer.
Answer : The number of moles of 
produced are, 0.66 mole.
Explanation : Given,
Given moles of 
= 0.44 mole
The given balanced chemical reaction is,
From the given balanced chemical reaction, we conclude that
As, 4 moles of react to give 6 moles of
So, 0.44 moles of react to give 
moles of
Therefore, the number of moles of produced are, 0.66 mole.
I do not think it is necessary to take a multivitamin everyday. To maintain optimal health, people should eat a balanced diet with low processed food and stay active. Looking into your daily health habits can help determine if you want to take multivitamins. Factors such as level of activity, diet, time outside, and physical condition can influence this decision.
