Water is a very important factor for us individually, but its importance stretches further than that. For instance, because water absorbs _______ very well, the oceans help stabilize temperatures around the world.
Answers
Water has specific heat. This helps us with homeostasis.
Related Questions
Absolute 0 is the point at whichA. ice melts. B. water boils. C. water freezes. D. molecular motion stops.
The atomic mass of titanium is 47.88 atomic mass units. This atomic mass represents the - explain please!
Define not matter and give examples
Sodium chloride, NaCl forms in this reaction between sodium and chlorine. 2Na(s) + Cl2(g) → 2NaCl(s) How many moles of NaCl result from the complete reaction of 3.9 mol of Cl2? Assume that there is more than enough Na.
Which of the following shows the equation balanced?
A. 3 O2 + CS2 → CO2 + 2 SO2
B. 3 O2 + CS2 → 2 CO2 + SO2
C. O2 + CS2 → CO2 + SO2
D. 4 O2 + 4 CS2 → 4 CO2 + 4 SO2
Answers
Answer:
Look at the equation below.
→
The equation balanced is:
A. →
Explanation:
The equation balanced is:
→
This can be proved with the amount of atoms of each element in reagents and products:
Reagents:
O=6
C=1
S=2
Products:
O=6
C=1
S=2
The option that shows the that the equation is balanced is:
3O₂ + CS₂ → CO₂ + 2SO₂ (option A)
How to balance the equation?
The equation O₂ + CS₂ → CO₂ + SO₂ can be balanced as shown below:
O₂ + CS₂ → CO₂ + SO₂
There are 2 atoms of S on the left side and 1 atom on the right. It can be balanced by writing 2 before SO₂ as shown below:
O₂ + CS₂ → CO₂ + 2SO₂
There are 2 atoms of O on the left side and a total of 6 atoms on the right. It can be balanced by writing 3 before as shown below:
3O₂ + CS₂ → CO₂ + 2SO₂
Now, we can see that the equation is balanced. Thus, the correct answer to the question is 3O₂ + CS₂ → CO₂ + 2SO₂ (option A)
Learn more about balancing equation:
#SPJ6
Answers
Most metals are not liquid at room temperature. They are typically solid and have a crystalline structure. Therefore, the correct option is option 3.
Metals are known for their high thermal and electrical conductivity, as well as their malleability and ductility. These properties allow metals to be shaped into various forms, such as wires and sheets, and conduct heat and electricity efficiently.
However, the majority of metals have a solid state at room temperature, with exceptions such as mercury, which is a liquid metal. The solid nature of metals is due to the metallic bonding between atoms, which involves the sharing of electrons within a sea of delocalized electrons.
Thus, the ideal selection is option 3.
Learn more about Metals, here:
#SPJ6
The complete question is -
Most metals are NOT-
Ductile
good conductors of heat and electricity,
liquid at room temperature,
malleable.
transporting the glucose made during photosynthesis to the roots and
stems.
Phloem
Xylem } Vascular
stem
τρος
Xylem
Phloem
Which function is xylem specifically adapted to perform in plants?
(7.12A)
A
It helps prevent wer loss
B
It transports water from the roots to the leaves
с
It exchanges gases with the atmosphere
D
It captures sunlight for photosynthesis
Answers
Answer:
B
Explanation:
it transports water from roots to the leafs
Answers
To determine whether a chemical formula represents a compound or element that will not combust, you need to consider the elements present in the formula and their respective properties.
How we can determine combustibility?
First, check if the formula contains only one type of element. If it does, then it represents an element, and the question of whether it will combust or not is irrelevant, as elements do not combust.
If the formula contains two or more different elements, then it represents a compound. To determine if the compound will combust, you need to look at the properties of its constituent elements.
Some elements, such as noble gases (e.g., helium, neon, argon), have very low reactivity and are unlikely to combust under normal conditions. Therefore, if the compound contains only noble gases, it is unlikely to combust.
Other elements, such as metals, are more reactive and can combust under certain conditions, such as exposure to heat or oxygen. Therefore, if the compound contains a metal, you need to check the reactivity of that metal to determine if the compound will combust.
Similarly, non-metals can also be combustible under certain conditions, such as exposure to heat or other reactive substances. Therefore, if the compound contains a non-metal, you need to check the reactivity of that non-metal to determine if the compound will combust.
Overall, to determine if a compound or element will combust, you need to consider the properties of its constituent elements and any external conditions that may affect its reactivity.
Find more on combustible gases:
#SPJ3
Answers
The net ionic equation is
Ag⁺(aq) +Cl⁻(aq) → AgCl(s)
Explanation
AgNO₃ (aq) + KCl (aq)→ AgCl(s) +KNO₃(aq)
from above molecular equation break all soluble electrolyte into ions
Ag⁺(aq) +NO₃⁻ (aq) + K⁺(aq) +Cl⁻(aq) → AgCl (s) + K⁺(aq) + No₃⁻(aq)
cancel the spectator ions in both side of equation =K⁺ and NO₃⁻ ions
The net ionic equation is therefore
= Ag⁺(aq) + Cl⁻(aq) → AgCl(s)
Answers
A₀=the initial amount of sample
A(t)=the amount of sample after t years
t=time
k=rate constant
First you need to solve for the rate constant (k) to get the equation
-((lnA(t)-lnA(0))/t=k which can simplify into k=-ln(A(t)/A₀)/t which can then be simplified further to ln(A₀/A(t))/t=k. I think the half life of strontium-90 is 28.8 years which means that when t=28.8 years, A(t) is going to equal 1/2 of A₀ and you can make the equation k=ln2/28.8 to get k=0.02408.
Now you need to solve for A(t) in the equation ln(A(t))=-kt+lnA₀ to get A(t)=e^(-kt+lnA₀) which simplifies to A(t)=A₀e^-kt. When you plug t=87, A₀=5g, and k=0.02408 into that equation you should get 0.616g.
Therefore after 87 years you will have 0.616g of strontium-90 if you started with a 5g sample.
I hope this helps. Let me know in the comments if anything is unclear.