Answer: 71.76
Explanation:
Answer:
71.76
Explanation:
You plug them in the equation said there
test help
What charge would Ca have in CaI2
A) 1+
B)2+
C)1-
D)2-
E) Calcium would not have any charge
Plsss help! worth so many points
Answer:
True
Explanation:
Brass is an alloy made from copper and zinc. Unlike pure metals, most alloys do not have a single melting point, but a melting range during which the material is a mixture of solid and liquid phases (a slush).
Brass is a mixture of the elements of copper and zinc.
hope it helps!
1. Write the chemical formula for slacked lime
2. Give the molecular and structural formulae of ethane
Solve both plz and helpppp me
Answer:
cl+ms=ClMs
Explanation:
just add them together it aint right btw
During which state of matter does temperature increase the most?
Answer:
Gases
Explanation:
Gases have the highest kinetic energy of any state of matter and thus occur at the highest temperatures. Increasing the temperature of a gas in an open system will not further change the state of matter because the gas molecules will only become infinitely further apart.
Answer:
Gas
Explanation:
There are many forms in which temperature increases, for example sublimation, (solid to gas) which is essentially vaporization which happens during a sub-like gas phase concluding the answer to gas.
Identify the type of reaction and the products. KCl ->
Answer:
decomposition
K and Cl2
Explanation:
Your classmate is viewing a sample using high power and is about to refocus using the coarse adjustment knob. What would you recommend your classmate do and why?
Answer:
Using the coarse adjustment knob of the microscope in high power may lead to the breaking of the slide if adjusted and raised the slide too much which can damage the sample as well as the high power lens.
In this case, I would recommend using the fine adjustment knob and moving away from the end of the viewing area of the microscope so there would no collision take place. The fine adjustment will help to get a clear image.
What kind of machine allows a single sailor to turn an entire ship with the ship's wheel, and how does it work?
Answer:
The ship's wheel is an example of a wheel and axle. It creates a mechanical advantage for the sailor because she can apply a small force over a large distance by turning the big ship's wheel.
(please mark brainliest if it's correct <33)
HELP!!GIVING BRAINLIEST!! TIME SENSETIVE!!!
Here are some basic lab safety rules. Read through them and write at least a page. THEY ARE OBVIOUSLY ALL IMPORTANT...GO INTO DETAIL ABOUT A FEW AND ELABORATE ON THEIR IMPORTANCE.
Know locations of laboratory safety showers, eye wash stations, and fire extinguishers. The safety equipment may be located in the hallway near the laboratory entrance. Know emergency exit route.
Answer:
wait so what am I supposed to do
Answer:
Explanation:
Knowing locations of laboratory safety showers is important because you could have spilled some dangerous chemical on your skin. Knowing where the eye washing stations is important if you get something dangerous in your eyes. Knowing where the fire extinguisher is also important because if there is a fire and you cannot evacuate, you have a good chance of putting it out with the fire extinguisher. Knowing the emergency exit route is important because if there is a fire or something along those lines, you need to evacuate as soon as possible and not be searching for exits, you should be on the move.
When 162.7 grams of Aluminum oxide combines with excess Calcium, how many milliliters of Calcium Oxide are produced?
Answer:
(4 Pts) Aluminum reacts with oxygen to produce aluminum oxide: 4 Al(s) + 3 O2(g) → 2 Al2O3(s). If 2.53 moles of Al reacts with excess O2, how many moles of Al2O3 can be formed?
Explanation:
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What is the noble gas electron configuration for the element oxygen?
[He] 2s² 2p⁴
Explanation:
just look it up
Answer:
[He] 2s² 2p⁴.................
What type of rock is formed when mineral-rich water seeps through the
sediments and glues, or cements together?*
A) Metamorphic rock
О
B) Igneous rock
C) Sedimentary rock
D) Volcanic rock
...clutching am I.Sedimentary
which of the waves listed below has the shortest wavelength?
infrared waves
radio waves
x-ray waves
Answer:
violet
Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light. Ultraviolet (UV) light—is radiation with a wavelength shorter than that of visible light, but longer than X-rays, in the range 10 nm to 400 .
Explanation:
Please help due today!
Answer:
the answer is b
Explanation:
Please help due today!
Answer:
It's the first answer choice for sulfur and the second answer choice for magnesium I believe
The maximum number of electrons that can be placed into a single 2p orbital is
a. 2
b. 6
c. 3
d. 10
TRUE OR FALSE: pH measures the amount of hydrogen or hydronium in water
Answer:
True
Explanation:
For the reaction 2NH3(g) + O2(g) -> 2NO(g) + 3H2O(g). The reaction is run using 824 g NH3 and excess oxygen. How many moles of NO are formed? How many moles of H2O are formed?
Answer:
Explanation:
Step One
Find the molar Mass of NH3
N = 14
3H = 3
Mass = 17
Step Two
Find the number of moles of NH3
mols = given mass / Molar Mass
given mass = 824 grams
molar mass = 17
mols = 824/17
mols = 48.47
Step Three
Find the moles of NO
Here you have to look at the balanced equation
Every 2 mols of HN3 produces 2 mols of NO
So the number of mols of NH3 = 48.47
The number of mols of NO = 48.47
Step Four
Find the mols of H2O
2 mols of NH3 produces 3 moles of H20
48.47 mols H20 produces x moles of H20
3/x = 2/48.47 Cross Multiply
2x = 3*48.47
2x = 145.41 Divide by 2
x = 145.41/2
x = 72.71 mols of water.
What type of elements are in s-block
how many different bases of DNA
Answer:
four
Explanation:
adenine, thymine, guanine, and cytosine
The elements with 8 electrons in an outer 'd' subshell belong to Group*
11
9
8
10
Answer:
yftcwertyuiokjbvchff
Explanation:
The elements with 8 electrons in an outer 'd' subshell belong to Group 8. Therefore, option C is correct.
What is periodic table ?In periodic table there is an arrangement of chemical element which are arranging in row and column called as group and period. This arrangement of an chemical element is according to their atomic number.
It is known as the periodic table because of the way the elements are arranged. It is widely used in chemistry, physics, and other sciences.
The elements are listed on the periodic table in order from lightest, or smallest, to heaviest, or biggest. The number in the table denotes this number of protons. The elements with 8 electrons in an outer 'd' subshell belong to Group 8.
Thus, option C is correct.
To learn more about the periodic table, follow the link;
https://brainly.com/question/11155928
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What color offspring did you get when you crossed a brown "BB" rabbit to a white "bb" rabbit?
Answer:
Bb rabbit
Explanation:
In an ecosystem , when a brown "BB" rabbit is crossed to a white "bb" rabbit offsprings with genotype Bb are produced.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
Learn more about ecosystem,here:
https://brainly.com/question/13979184
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what is the lewis dot structure for Cu2S
Answer:
LOL i belive its 200 because i did this exact same thing yesterday for homework and got it right so yeah, it should work. if it doesnt im sorry! but yeah XD sub to my yt channel too! DB_PLAYS <3
Explanation:
The electronegative of phosphorus is
Look at the graph
below.
Write a paragraph
describing a scenario
that this graph would
be true for.
Hurry & I’ll mark you brainliest GIVING POINTS TO ANYONE WHO HURRIES
Answer:
a item dropping
Explanation:
KE is movement and PE is height. As it's falling it gets KE and falls downward giving it more KE and less PE
Answer:
Explanation:
Trana make us pay for da answer smh
2. If 45.4 grams of H20 are formed during the reaction, how many moles of Oz reacted?
4 NH3 + 5 O2 → 4 NO + 6 H2O
how many grams of Al2O3 are needed to produce 24.5 L of O2 gas at STP?
Answer:
74.35 g
Explanation:
The equation of the reaction is given as;
2Al2O3 --> 4Al + 3O2
From the reaction;
2 mol of Al2O3 reacts to produce 3 mol of O2
Converting 2 mol of Al2O3 to mass;
Number of moles = Mass / Molar mass
Mass = Number of moles * Molar mass
Mass = 2 * 101.96 = 203.92 g
Converting 3 mol of O2 to volume;
1 mol = 22.4 L
3 mol = x
x = 22.4 * 3 = 67.2 L
This means 203.92g of Al2O3 produces 67.2L of O2
xg would produce 24.5 L of O2
203.92 = 67.2
x = 24.5
x = (24.5 * 203.92) / 67.2
x = 74.35 g
Explain what the periodic table is and how it's organized
Answer:
The periodic table is a set of elements organized by their atomic number, from lowest (hydrogen 1) to highest (oganesson 118). That number is the amount of protons in the nucleus of an atom of the element. The table is split into three groups of elements (metals, nonmetals and metalloids). As you go down the table the elements are more reactive.
Explanation:
^^
Calculate the mass of magnesium oxide that is produced when 64 g of magnesium is combined with 1.32 g of oxygen
Please help- D;
.
.
.
.
.
Answer: Silicon dioxide
Explanation:
di is 2 and since oxygen is 2
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