What element is represented in this model if the atomic number is 3?
A.
lithium
B.
carbon
C.
nitrogen
D.
neon
Answers
Answer:
The answer is lithium
Answer:
A. Lithium
Explanation:
Related Questions
Convection currents slowly move tectonic plates across Earth
True or False?
Answers
Answer: True
Explanation: As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense.
In a reaction, the theoretical yield was 80 g, but the actual yield was 60 g. What was the percentage yield?
Answers
Answer:
75%
Explanation:
percent yield is the actual yield divided by the theoretical (predicted) yield, then multiplied by 100 to get a percentage.
60/80 = 0.75
0.75 x 100 = 75%
Answer:
33.34 %
Explanation:
Given that,
Actual yield = 60 g
Theoretical yield = 80 g
We need to find the percentage yield. It can be calculated as follows :
[tex]\%=\dfrac{Acutal-theoretical }{Actual}\times 100\\\\=\dfrac{60-80}{60}\times 100\\\\=33.34\%[/tex]
So, the required percentage yield is 33.34 %.
A compound with molecular formula C6H9No that has an amide functional group and does not have an alkene group
Answers
Answer:
Following are the responses to the given question:
Explanation:
[tex]\to C_6H_9NO[/tex]
calculating the HOI:
[tex]= \frac{2C+2+N-H-X}{2} \\\\ =\frac{2\times 6+2+1-9-0}{2}\\\\ =\frac{12-6}{2}\\\\=\frac{6}{2}\\\\=3[/tex]
So, in the above compund there are three bounds or we can say that one is double and two bound is single.
Please find the attachment file of the Function group:
In the above given conditon compound doesn't include the alkene functional group that is absense of[tex]-C=C-[/tex] , and compound include [tex]-C\equiv C-[/tex] So, please find the attached file of the structure of the compound:
What type of asexual reproduction do bacteria most commonly use?
Answers
Answer: Binary Fission
Explanation:
Surface tension _____. A. Causes beads of water to spread out B. May be increased by detergents C. Is an inward force that tends to minimize the surface area of a liquid D. Is decreased by hydrogen bonding
Answers
Answer:
C. Is an inward force that tends to minimize the surface area of a liquid
Explanation:
Surface tension is a skin-like proper of water that is explained by its property or ability to form hydrogen bonds. The water molecule has the ability to bind the molecules from all sides that surrounds it. The force of action on each of the molecules is balanced. The surface tension is a more inward phenomenon and it holds the droplet in a spherical shape.How many molecules are in 385 grams of CO2?
Answers
Answer:
8.748111203262969
Explanation:
Describe an experiment that can be done to prove the law of conservation of mass?
Answers
Explanation:
Given alka - seltzer and a flash, students design and conduct an experiment to prove the law of conservation of mass.2NO(g) + O2 → 2NO2
In one experiment, 1.866 mol of NO is mixed with 4.503 mol of O2.
a)Determine the limiting reagent
b) Calculate the number of moles of NO2 produced.
Answers
Answer:
a)NO has smaller moles
b)1.866
See photo below
3
What is compression?
A
When alr molecules move apart from one another.
B
When alr molecules collide with one another.
C
When alr molecules become packed tightly together.
D
When alr molecules move around freely.
Answers
When a sound is louder what
measurement gets bigger?
Answers
Answer:
The bigger the amplitude is, the louder and more intense the sound.
nomenclature of calcium chloride
Answers
Answer:
CHEBI:3312 - calcium dichloride
Explanation:
Calcium chloride is an inorganic compound, a salt with the chemical formula CaCl2.
Answer:
CHEBI:3312 - Calcium dichloride
What are some of the obstacles sperm face as they travel through the female reproductive system?
Answers
Answer:
well they have to get through the cooter without getting dissolved by acid or getting stuck in mucus. and they have to guess which tube they need to go into. then if they are luckys one nut will get to become child
Explanation:
Answer:
Some sperm get stuck in the lining of the uterus.
Others are destroyed by the female’s immune system.
Some of the sperm head down the wrong fallopian tube.
Explanation:
right on edg:) or you could use the other guys answer the comments are pretty funny
leave a heart :))
can acidic oxide react with acids?
If not, why?
Answers
Answer:
no
Explanation:
Acidic oxides, or acid anhydride, are oxides that react with water to form an acid, or with a base to form a salt. They are oxides of either nonmetals or of metals in high oxidation states.
Answer:
The answer is no!
Acidic oxides, or acid anhydride, are oxides that react with water to form an acid, or with a base to form a salt. They are oxides of either nonmetals or of metals in high oxidation states.
You stir your hot cocoa with a silver spoon that has a mass of 0.032 kg. The spoon’s temperature increases from 20 K to 60 K. What is the change in the spoon’s thermal energy? (Hint: Use the table in Figure 6 to find the specific heat of silver.) SHOW YOUR WORK.
Formula:
Answer:
help!!!!!!
Answers
Answer:
A
Explanation:
A
When is Africa's Serengeti plains herbivores migrate across this area following pls pls help me out
Answers
Which of the following is an empirical formula?
will mark brainlyist
Answers
Answer:
I believe its the 3rd option
Explanation:
Answer:
Number 3
Explanation:
C3H8, C3H8 is an example of an empirical formula. It represents the relative number of atoms in the simplest ratio.
How many grams are in 2.0 x 10-5 moles of uranium?
Answer choices
5.3 x 10-3 grams
4.8 x 10-3 grams
1.4 x 10-3 grams
2.2 x 10-3 grams
Answers
The mass of 2.0 x 10-5 moles of uranium is 4.8 x 10-3 grams.
What is molar mass?The molar mass of a substance is the mass of 1 mole of the substance.
The molar mass of uranium is 238 g.
This is the mass of 1 mole of uranium.
The mass of 2.0 x 10-5 moles of uranium = 238 g × 2.0 x 10-5
The mass of 2.0 x 10-5 moles of uranium = 0.00476 g = 4.8 x 10-3 grams
Therefore, the mass of 2.0 x 10-5 moles of uranium is 4.8 x 10-3 grams.
Learn more about molar mass at: https://brainly.com/question/18142599
Why can’t fossil fuels be replaced right away?
If you answer I will give you Brainlist PLEASE HELP
Answers
Answer:
Fossil fuels cause local pollution where they are produced and used, and their ongoing use is causing lasting harm to the climate of our entire planet. Nonetheless, meaningfully changing our ways has been very difficult.
i need help pls
its due tomorrow i wanna get the answer right pls.
Answers
Answer:
1) Without our atmosphere we wouldn't have life! The atmosphere protects our earth from letting harmful substances or rocks into our planet, which could cause damage.
2) You interact with the atmosphere in both good ways and bad. You interact by putting up things like flowers and trees, but in bad ways by releasing bad things (like carbon dioxide) and by light pollution!
3) The factors that can affect climate of an area, by latitude and longitude!
Explanation:
Hope this helps! Plz mark as brainliest! :)
What are the chemical building blocks of proteins called?
Pls
Answers
Answer:
the chemical building blocks of proteins is called amino acids.
Which of the following substances is a base?
5 points
a. Vinegar
b. Ammonia
c. Lemon juice
d. Distilled water
Answers
Answer:
Ammonia
Explanation:
hope this helps
A balloon filled with helium has a volume of 30.0 L at a pressure of 100 kPa and a temperature of 15.0 C. What will the volume of the balloon be if the temperature is increased to 80.0 C and the pressure remains constant? (Hint: Use the Charles law equation)
Answers
Answer:
The final volume of the balloon is 24.480 liters.
Explanation:
Let consider that no leakages occur in the balloon during the isobaric process and that helium behaves ideally. From Equation of State for Ideal Gases, we construct the following relationship:
[tex]V_{o}\cdot T_{o} = V_{f}\cdot T_{f}[/tex] (1)
Where:
[tex]V_{o}[/tex], [tex]V_{f}[/tex] - Initial and final volume, measured in liters.
[tex]T_{o}[/tex], [tex]T_{f}[/tex] - Initial and final temperature, measured in Kelvin.
If we know that [tex]V_{o} = 30\,L[/tex], [tex]T_{o} = 288.15\,K[/tex] and [tex]T_{f} = 353.13\,K[/tex], the final volume of the balloon is:
[tex]V_{f} = \frac{V_{o}\cdot T_{o}}{T_{f}}[/tex]
[tex]V_{f} = 24.480\,L[/tex]
The final volume of the balloon is 24.480 liters.
Explain the law of conservation of mass and give an example that demonstrates it.
Answers
Answer:
Mass Cannot be created or destroyed. So everything that goes into a chemical reaction has to come out the other side, like cars driving into a tunnel. Any balanced equation of a chemical reaction is an example
4. How Does Extreme conditions
accelerate erosion ?
Answers
Answer:
Explanation:
Geologic erosion influences soil formation and distribution. Accelerated erosion results from the removal of natural vegetation by human activities such as farming, ranching, forestry, and construction. The production of agricultural and forest products can be affected by excessive erosion
Are all diatomic molecules non polar?
Answers
chemistry help please!!
Answers
Answer:
no so boring........................
Which fossil fuel is causing the most pollution? PLEASE HELP TIS ASSIGNMENT IS PAST DUE I NEED HELP
Answers
Answer:
Coal is the fossil fuel causing the most pollution.
Explanation:
I hope this helps.
2. How will damage to the adrenal medulla affect the individual? Select the best prediction(s).
A. Blood glucose will decrease
B. Blood glucose will increase
C. Respiration rate will decrease
D. Respiration rate will increase
E. Blood pressure will decrease
F. Appetite will increase
Answers
Answer:
F,A
Explanation:
is neon an example of a metal or nonmetal
Answers
Answer:
nonmetal
Explanation:
correcto answers only
How does warmer planet causes ice to melt and then cause the warm up even more?
Answers
Answer:
Melting ice causes more warming.
Because they are darker in color, the ocean and land absorb more incoming solar radiation, and then release the heat to the atmosphere. This causes more global warming. In this way, melting ice causes more warming and so more ice melts.