Identify the type of reaction and the products. Ba+O2 ->
Answer:
Explanation:
The is barium and oxygen in here
barium+ oxygen-> barium oxide
barium + oxygen -> barium peroxide
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.
what is the chemical reaction that occurs during photosynthesis
Answer:
endothermic change occurs
Explanation:
photosynthesis, is an endothermic reaction in which energy is absorbed from the surrounding.
hope this helps
What is the ph value of neutral substance
Answer:
Acidity and alkalinity are measured using a pH scale, for which 7.0 is neutral. The lower a substance's pH (less than 7), the more acidic it is; the higher a substance's pH (greater than 7), the more alkaline it is. Average rain has a pH of about 5.6; it is slightly acidic because carbon dioxide (CO2) dissolves into it, forming weak carbonic acid. Acid rain usually has a pH between 4.2 and 4.4. The most common nitrogen-related compounds emitted into the air by human activities are nitrogen oxides. Ammonia is another nitrogen compound emitted into the atmosphere, primarily from agricultural activities and fossil fuels. Most of the nitrogen oxides released in the U.S. due to human activity are from the burning of fossil fuels associated with transportation and industry.
Explanation:
You have a stomach-ache and determine that your stomach is too acidic. Which of the
following medications would you take and why? Use a model to explain your choice?
(Attach your model to the next question.)
1. weak acid
2. strong acid
3. weak base
4. strong base
Answer: you would use a weak base, as you want to combat acidity but do not want to damage your stomach. an example is tums™ which use carbon carbonate, a base.
Hope this helps, and if it did mind marking me brainliest? thanks >//-//<
Different substances are made from different ____________ which interact with water in different ways.
Answer: atoms/molecules
Explanation:
how many moles of Mg is 3.5 x 10^27 atoms of Mg
mmg mmñm
Explanation:
no lo seeee123456789
TRUE OR FALSE: pH measures the amount of hydrogen or hydronium in water
Answer:
True
Explanation:
how many different bases of DNA
Answer:
four
Explanation:
adenine, thymine, guanine, and cytosine
c. How many grams of NH3 react completely with 75.0 grams of PbO?
Answer:
3.81 g NH3
Explanation:
friends with chemist
A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over
the next few minutes?
A. Molecules in both the metal and the surrounding air will start moving at lower speeds.
B. Molecules in both the metal and the surrounding air will start moving at higher speeds.
C. The air molecules that are surrounding the metal will slow down, and the molecules in the metal will speed up.
D. The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down
Please help- D;
.
.
.
.
.
Answer: Silicon dioxide
Explanation:
di is 2 and since oxygen is 2
If a compound has 27.36 % Na, 1.20 % H, and 57.14% 0, with the rest being
carbon. What is the percent of carbon in the compound?
Answer:
14.3% C
Explanation:
27.36 + 1.20 + 57.14 = 85.7
100 - 85.7 = 14.3%
I DONT NEED HELP JUST GIVING YOU GUYS THE ANSWER I TOOK THE TEST! Which statement explains how two gases at the same temperature can diffuse at different rates?
They have different molar masses but the same velocities.
Their average kinetic energies are the same, but the smaller molecules have faster velocities.
Their kinetic energies differ, but their masses are the same.
They have the same masses but different velocities.
The answer is: Their average kinetic energies are the same, but the smaller molecules have faster velocities.
The average kinetic energies of gas molecules are the same, but the smaller or lighter molecules have more velocities. Therefore, option (B) is correct.
What is average kinetic energy?The average kinetic energy of a molecule can be described as:
[tex]{\displaystyle K.E.=\frac{3}{2}kT[/tex]
Where T is temperature (K) and k is Boltzmann constant.
All molecules of a gas are identical in mass and size but they differ from gas to gas. The gas molecules are separated by large distances so that the real volume of the molecules is negligible as compared to the total volume.
The force of attraction between molecules is negligible and molecules are supposed to be moving in different directions with different velocities. The collision between gas molecules is perfectly elastic so that no energy is wasted during a collision.
Since gas molecules are moving at different velocities ao they possess different kinetic energies. The average kinetic energy is directly proportional to the temperature (Kelvin).
Learn more about average kinetic energy, here:
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what is the ratio of hydrogen(H) to oxygen(O) in hydrogen peroxide(H2O2)?
A 1:1
B 2:2
C 1:2
Answer: 2:2 but if simplified it’s 1:1
Explanation:
Write the Formulas for these ionic compounds:
1) Tin(IV) oxide
2) Aluminum oxide
3) Silver sulfide
4) Copper (II) sulfate
5) Potassium carbonate
Answer:
1. Tin(IV) oxideTin(IV) oxide, also known as stannic oxide, is the inorganic compound with the formula SnO₂. The mineral form of SnO₂ is called cassiterite, and this is the main ore of tin. With many other names, this oxide of tin is an important material in tin chemistry. It is a colourless, diamagnetic, amphoteric solid.
Formula: SnO₂
Molar mass: 150.71 g/mol
Melting point: 1,630 °C
Density: 6.95 g/cm³
2. Aluminum oxideAluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al₂O₃. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.
Formula: Al₂O₃
Molar mass: 101.96 g/mol
Melting point: 2,072 °C
Density: 3.95 g/cm³
Boiling point: 2,977 °C
ChemSpider ID: 14086
ChemSpider ID: 26988
3. Silver sulfideSilver sulfide is an inorganic compound with the formula Ag ₂S. A dense black solid, it is the only sulfide of silver. It is useful as a photosensitizer in photography. It constitutes the tarnish that forms over time on silverware and other silver objects.
Formula: Ag2S
Molar mass: 247.8 g/mol
Density: 7.23 g/cm³
ChemSpider ID: 145878
4. Copper (II) sulfateCopper(II) sulfate, also known as copper sulphate, are the inorganic compounds with the chemical formula CuSO₄ₓ, where x can range from 0 to 5. The pentahydrate is the most common form. Older names for this compound include blue vitriol, bluestone, vitriol of copper, and Roman vitriol.
Formula: CuSO4
IUPAC ID: Copper(II) sulfate
Molar mass: 159.609 g/mol
Density: 3.6 g/cm³
Melting point: 110 °C
Soluble in: Water
5. Potassium carbonatePotassium carbonate is the inorganic compound with the formula K₂CO₃. It is a white salt, which is soluble in water. It is deliquescent, often appearing as a damp or wet solid. Potassium carbonate is mainly used in the production of soap and glass.
Formula: K2CO3
Molar mass: 138.205 g/mol
IUPAC ID: Potassium carbonate
Density: 2.43 g/cm³
Melting point: 891 °C
Soluble in: Water
Explanation:
Hope it is helpful....
mg+o2 balanced eaquation
Answer:
2Mg+O2=2MgO
balanced equation
hope it helps.
Answer:
Oroduct is mgo and it is balanced equation
Because both MG and o² have valence 2
Compare and contrast a neutral atom and an ion.
Answer:
Atoms are neutral. They contain the same number of protons and electrons. An ion is an electrically charged particle produced by either removing electrons from a neutral atom to give a positive ion or adding electrons to a neutral atom to give a negative ion.
Explanation:
Hope this helped
Sand dunes are large piles of of sand that can be found in the dessert. What causes these sand dunes to form
A. Ice
B. Wind
C. Earthquakes
D. Volcanoes
I NEED THE ANSWER ASAP IM ON A TIMER
describe the relationship between the amount of C-15 and time?
Answer:
As time increases, C-15 (Carbon) decreases. During radioactive decay, the amount of Carbon in a substance undergoes half-lives (A sample could have a half life of 1002 years, for example.) When that substance ages to that timeframe, it loses half of its mass. Then for the next half-life, it loses half of that new mass, and so on.
What is the name of these ionic compounds? I WILL GIVE 20 POINTS AND BRAINLIEST!!!!!!!
1. CsBr
2. Ag2S
3. NiCl3
4. CaI2
5. BeO
6. BaSO4
7. Cr2(CO3)3
8. Li3N
9. SnF2
10. Cu(C2H3O2)2
1.chloride
2.sulfate
3.ferric
4.bromide
5.binary
6.ammonium
7.nirate
8.fluroide
give me brainliest as per your question ok
Answer:
6; barium sulfate
7; chromium (III) carbonate
alkanes,
General Formula: C, H 2n+2
Carbon Names Molecular Formula
C2H6
Ethane
Unknown No. of
Carbon (n)
Ex. If n= 2
1.If n = 4
2. If n= 5
3. If n = 7
4. If n = 8
5. If n= 9
Firstly ALKANES FORMULA IS CnH2n+2
C4H10 Butane
C5H12 Pentane
C7H16 Hectane
C8H18 Octane
C9H20 Nonane
CO2+ H2O + hν → C6H12O6 + O2
ayudenme plisss
Answer:
This is the balanced equation I believe-
6CO2 + 6H2O → C6H12O6 + 6O2
However, that is without the HV because I’m not sure what the hv means.
1. Any gentle wind is called a
It's called a breeze
What is the mass of the ethanol that exactly fills a 200.0 mL container? The density of ethanol is 0.8 g/mL. please help
How many plates is Earth made up of?
also this is science not chemistry I just couldn't find a science
Answer:
seven
Explanation:
There are major, minor and micro tectonic plates. There are seven major plates: African, Antarctic, Eurasian, Indo-Australian, North American, Pacific and South American. The Hawaiian Islands were created by the Pacific Plate, which is the world's largest plate at 39,768,522 square miles.
This reaction supports the Law of Conservation of Mass (hint: is the equation balanced?):
2KOH ® K20 + H2O True or
False
Answer:
False
Explanation:
Left:
K = 2 atoms
O = 1 atoms
H = 1 atoms
Right:
K = 2 atoms
O = 1 atoms
H = 2 atoms
O = 1 atoms
As you can see both sides do not have the same amount of atoms, therefore it is not balanced.
Hope this Helps!!:)
Please help due today!
Answer:
the answer is b
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.