Sexually tranmsitted? No. Genetic? You can be more suseptible to certaincancers for genetic reasons, but you can't have cancer in your geneticmakeup. Cancer is indeed a mutation of the cells, where they forget tonaturally die off, and spread.
Stirring a liquid while you are mixing in another ingredient speeds up the rate of dissolving. Question 13 options: True False
Answers
Answer:
true
Explanation:
This is because it helps distribute the particles that are being dissolved.
The answer would be true
What is the second hottest layer of the atmosphere?
Answers
Well, I say the answer is Thermosphere! Hope I helped :)
Which tool or tools would you use to measure and compare the mass of a cup of fresh water and a cup of salt water
Answers
You could use a scale to measure the mass as well as a cup to hold the water. If you were comparing the two, you should also probably use a graduated cylinder to get the same amount of each type of water.
Hope this helped ^_^
If aluminum loses 3 electrons how do you write the ion
Answers
Since it has lost 3 electrons that means it now has excess protons of 3 protons.
So it is positive. You write it as:
Al³+.
The plus sign should be on the same line with the 3.
_Cuo +H, → _Cu + _H,0
Answers
Answer:
CuO(s) + H₂(g) → Cu(s) + H₂O(l)
Explanation:
Assuming the reaction is the reduction of CuO by H₂
Then the balanced equation for the reaction is;
CuO(s) + H₂(g) → Cu(s) + H₂O(l)
The equation shows the reducing property of hydrogen gas, such that hydrogen reduces metal oxides such as copper(ii)oxide to the respective metals.
The law of conservation requires chemical equations to be balanced so as the mass of reactants will be equal to that of products.
In this case; there is 1 copper atom, 1 oxygen atom and 2 hydrogen atoms on both side of the equation and thus the equation is balanced.