Explanation:
Balancing the equation, we get that:
2Na + Cl2 -> 2NaCl
So from 1.5 moles of Na, 1.5(2/2)=1.5 moles of NaCl are produced.
Which type of plate boundary is responsible for creating mountains?
O divergent boundary
O Continental-oceanic convergent boundary
O oceanic-oceanic convergent boundary
O Continental-continental convergent boundary
Answer:
O Continental-continental convergent boundary
Explanation:
Hope it helps.
Calculate Density:
Volume=13cm3, Mass=147.55g
Someone please help
Answer:
11.35 g/cm³
Explanation:
If your rounding then 11.4. hope this helps :)
How many significant figures are in the measured value 69.380
Answer:
4
Explanation:
Significant figures (also known as the significant digits, precision or resolution) of a number in positional notation are digits in the number that are reliable and absolutely necessary to indicate the quantity of something.
Significant numebrs: 69.38
We don't need the extra zero!
Answer:
There are 5 significant figures in 69.380.
Explanation:
The "0" in the thousandths, which is a trailing zero, is significant because it is part of the measurement value.
at what point does the radiation start to affect satellites in the atmosphere
Which of the following represents the raw materials of photosynthesis?
a. water and glucose
b. carbon dioxide and water
c. carbon dioxide and oxygen
d. glucose and oxygen
Answer:
B.
Explanation:
B. Carbon dioxide(CO2)and water(H2O)
they represent the raw material of photosynthesis.
hope this helps you
1 A pump with an 80% efficiency drives water up between two reservoirs through a piping system of total length L = 15 and circular cross -section diameter d = 7 cm. The reservoirs are open to the atmosphere at an ambient temperature of 20 C. The difference in elevation between the free surface can be accounted for by the local loss coefficients Kentrance Kexit 1.0, Kelbow 0.4. If the volumetric flow rate in the system Q = 10 Liter/s, and the surface roughness of the pipe is = 0.15 mm, calculate:
(a) The average water flow velocity in the pipe.
You will be performing many dilutions in this experiment. If John adds 17.51 mL of 6M HCl to 6.36 mL of distilled water, what is the final concentration, in M, of HCl
The molarity of the solution decreases on dilution by adding distilled water. The molarity of the solution of 17.51 ml , 6 M HCl when added to 6.36 ml is 4.4 M.
What is molarity ?Molarity is a common term used to express the concentration of a solution. The molarity of a solution is the ratio of the number of moles of solute to the volume solution in liter.
If a solution of volume V1 ml with M1 molarity is diluted to V2 ml of M2 molarity, then, the relation between the two concentrations is written as:
M1 V1 = M2 V2.
given, M1 = 6 M
V1 = 17.51
the volume after the addition of 6.36 ml water, v2 = 17.51 + 6.36 = 23.78 ml
then M2 = M1 V1/V2
M2 = 6 M × 17.51 ml/ 23.78 ml
= 4.4 M.
Therefore, the molarity of the solution after dilution is 4.4 M.
Find more on molarity:
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Based on the observations of how the different forms of salt start mixing with the
water, which type of salt particle do you expect to fully dissolve at the end of the 45
minutes?
Fine
Coarse
Pellet
what are the latest e-waste treatment techniques and what are the new innovative methods to recover gold from electrical wastes? Please be thorough
Answer:
Gold is present in electronic wastes like smart phones,TV sets and computers etc.It is necessary to recover gold effectively.Recovering precious metal from electronic waste could help to reduce the environmental impact and cut carbon dioxide emissions
Simply one who think about the target metal without disturbing the other major impurities will be the idea solution for the industrial scale gold recovery from E-waste... In our lab we have developed the process which was patented in India... hope soon it will publish into the public domain.... PROCESS FOR THE RECOVERY OF GOLD FROM MANUALLY DISMANTLED GOLD COATED E-WASTE
Use of both physical and biological processes may help in a better recovery of Gold. Several microorganisms have been discovered which are efficient in solubilising gold from the e-wastes.
Explanation:
hope it helps
A graduated cylinder contains 15.0 mL of water. When a metal solid is added to the cylinder the water level rises to 35.5 mL. The metal solid is massed on a balance and its mass is found to be 154.32 g. What is the density of the metal?
Length (miles)
1
1.3
2.
3.2
3
0.9
4
1.8
What is the shortest measurement you made, in SI units? 1 mi = 1.61 km.
A. 3.2 km
B. 7.2 km
C. 1.4 km
D. 5.2 km
Answer:
The answer is 1.4 km
Explanation:
1. Which is a substance that cannot be broken down into another substance?
O compound
O atom
O element
O
molecule
Answer:
Atom
Explanation:
my theory:
Atoms are their own substance. It's atom because if you tried to break an atom, you would be going into nuclear physics. That would be unsafe and dangerous.
Answer:
Explanation:
1. Compound
yup thas ittkew efjejkejg ghioen
PLEASE HELP ASAP!
What is the volume of 0.4 MH2SO4 is required to neutralize 29 mL od 0.26 M NaOH?
H2SO4(aq)+2NaOH(aq) --> Na2So4(aq)+2H2O(l)
Only answers:
54 ml
29ml
16ml
2.1ml
8.0ml
V1M1c1 = V2M2c2
29 x 0.26 x 1 = V2 x 0.4 x 2
V2 = 9.425
How many moles of nitrogen gas would be produced if 3.40 moles of copper(II) oxide were reacted with excess ammonia in the following chemical reaction? 2 NH₃(g) + 3 CuO (s) → 3 Cu(s) + N₂(g) + 3 H₂O(g)
Explanation
Step 1: balance the equation
Step 2: Place the given mass (mole) above the correspond formula and X above the formula sub whose m B to be determined
Step3: Write the total molar mass of the the substance beliw the formula of each substance.
3.40 X
2NH3 + 3CuO -> 3CuO +N2 +3H2O
3 mol 1 mol
3.40 = X
3mol 1mol
X(3)=3.40 *1mol
3 mol
X= 3.40 *1 mol
3 mol
X=1.3333
This is because i am asked only the mole but if it asks what mass(what gram) we will find the mass
Suzie made the following observations while spending the weekend at her
grandmother's home.
1.
II.
Red beans swell when soaked in water
Cucumber springs water when salt is added to it
She can tell when her sister is around from the scent of her perfume
II.
a. State TWO general deductions which can be made from all these
observations about the nature of matter. (4 marks)
b. Use your deductions in (a) above to explain observation III. (3 marks
Answer:
...
Explanation:
i lowkey dont know what to put, i just need my points srry;(
Is it an acid or alkaline that is added to a metal to make it oxide
please answer it is Urgent
Answer:
i am not sure but is it hydrogen oxide
Explanation:
What is cartination in terms of Chemistry
Answer:
did you mean catenation? catenation is the process of bonding of the atoms of same element into a ring of series called a chain.
You need to make a 1:4 dilution of dye in water so that the total volume in test tube one is 60 ml.
From the solution you made in test tube one, you need to make a 1:5 dilution into test tube two so that the total volume is 15 ml.
Find Transfer Volume
Find Diluent
Find TDF
In the serial dilution for the preparation of the dye, the total dilution factor is 1/20
What is dilution of solution?Dilution is the process of preparing solutions of lesser concentration from a more concentrated solution.
In test tube 1:
Total volume = 60 mL
Dilution factor = 1:4
1 parts stock solution is required for every four parts diluent
Total parts = 5
volume of diluent = 4/5 × 60 mL = 48 mL
48 mL of diluent is added to 12 mL of stock solution to prepare the solution in test tube 1.
In test tube 2:
Total volume = 15 mL
Dilution factor = 1:5
1 parts stock solution is required for every five parts diluent
Total parts = 6
volume of diluent = 5/6 × 15 mL = 12.5 mL
12.5 mL of diluent is added to 2.5 mL of stock solution from tube 1 to prepare the solution in test tube 2.
Total dilution factor = 1/4 × 1/5 = 1/20
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We use yeast, seen below, when we make bread. Some warm water and a little sugar and yeast are ready to divide through budding. Each yeast cell is identical to its parent cell. This is similar to regeneration in protists. This is a form of __________ reproduction.
Question 13 options:
abiotic
aexual
genetic
seual
How can atoms exist in an electrically neutral state
Answer:
When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral.
Explanation:
9.69 × 10^7 in decimal form
Where is the moon located in a eclipse season
Answer:
During the eclipse season, the Moon is at a low ecliptic latitude (less than around 1.5° north or south), hence the Sun, Moon, and Earth become aligned straight enough (in syzygy) for an eclipse to occur.
Explanation:
can ubguys help me to answer it
How was this organism transported to a new ecosystem in the u.s.
Answer:
ExplaIf the organism was transported to a new ecosystem in the USA, this species will be an invasive species, which will reproduce more, and will not have a specific predator, which may bring an imbalance to the ecosystem.
What are Invasive Species?
Invasive Exotic Species or, simply, Invasive Species is defined as an exotic species that proliferates without control and starts to pose a threat to native species and to the balance of ecosystems that it occupies and transforms in its favor. It can even pose a risk to people.
With this information, we can conclude that caution is needed when introducing a new species into a new ecosystem.
Learn more about Invasive Species in brainly.com/question/21452505nation:
How are compounds and mixtures different from one another?
Answer:
Compound are substances which can be formed by chemically combining two or more elements. Mixtures are substances that are formed by physically mixing two or more substances.
Explanation:
brainliest?
Answer:
the things they are made out of
A reaction between
a
base and an ammonium salt
Answer:
here's your answer..
Explanation:
mark me brainliest
What are the biggest challenges when it comes to recycling Polyolefins for Mechanical Recycling.
Answer:
The use of post-consumer polyolefins is increasing due to the pledges of multiple organizations to use higher concentrations of recycled materials in packaging. However, direct food contact applications are challenging with various regulations around the world mandating minimum safety requirements, which is often determined by the condition of use (microwave, cold storage) and food type (fatty, aqueous, dry). This article reviews different predictive models that have been developed to study contaminant migration from packaging to food contact articles. It also examines multiple techniques and methods that have been employed to quantify and assess to the safety of recycled materials (e.g., United States and Europe) which serve as a base for the regulatory framework for many other countries. The presence of different contaminants during polymer processing is also discussed due to potential problems from the presence of harmful compounds affecting human health or degradation of material properties.
Name the substances
50 pointssss! Please help me
Answer:
may I know the directions?
Explanation:
pls put a deroction
a. 2-methyl-2-propanol
b. 2-butene 1-ol
c. 3-methyl 2-butanol
d. 3-methyl 2-pentanol
...alcohol has been produced by fermentation of grains and fruits, and
consumed for thousands of years in various forms.
A) Ethyl
B) Methyl
C) Propyl
D) All the above
ANSWER: A
Answer:
Ethyl
Explanation:
Ethyl alcohol is a very good in case of storage.It can be stored for over than 1000 years .Historians discovered many bottles of ethyl alcohol stored before 2000Years