Answer: If the outermost shell has 1–4 electrons, it is a metal.
If the outermost shell has 5–7 electrons, it is a non-metal.
Which best protects animal species that are endangered due to overhunting?
laws
increased biodiversity
poaching
captive breeding
Answer:
i believe the correct answer is d.) the correct answer is captive breeding but if its not im sorry
Answer:
captive breeding
Explanation:
Lemme just- ;-; E
Uh- CoRoNaViRuS
the answer is solid line
A car traveling around a corner at 18 meters per second is accelerating because it is changing its
1. mass.
2. speed.
3. direction.
4.displacement.
Answer:
18 mass speed direction displacement
Explanation:
18 meters per second is 18/60 =0.3
Two cars are moving with the same speed. The VELOCITY of both cars will be the same if the cars are moving in:
1. circles.
2. parallel paths.
3. straight lines.
4. the same direction.
Answer:
4. the same direction
Explanation:
they would have the same speed adn the same direction.
Velocity is speed+direction
Based on your knowledge of how the greenhouse effect works, why does the level of carbon dioxide affect the global temperature?
This is for science, I need it in my own words.
I will give brainless.
Answer:
bruh
Explanation:
300 g of requires 30000 J of thermal energy to raise the temperature from 25 °C to 85 °C, what is the heat capacity of water? ANSWER ASAP PLEASE
According to the concept of specific heat capacity, the heat capacity of water is 1666.67 J/Kg°C.
What is specific heat capacity?Specific heat capacity is defined as the amount of energy required to raise the temperature of one gram of substance by one degree Celsius. It has units of calories or joules per gram per degree Celsius.
It varies with temperature and is different for each state of matter. Water in the liquid form has the highest specific heat capacity among all common substances .Specific heat capacity of a substance is infinite as it undergoes phase transition ,it is highest for gases and can rise if the gas is allowed to expand.
It is given by the formula ,
Q=mcΔT
Substitution of values in the above equation, c=30000/0.3×(85-25)
c=1666.67 J/kg°C
Thus, the heat capacity of water is 1666.67 J/Kg°C.
Learn more about specific heat capacity,here:
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HELP!!!!!! IT¨ S DUE TODAY
Answer:
The answer for number 4 is 7 and the answer for number 5 is true
Explanation:
Imagine that the moon’s orbit wasn’t elliptical and it that it did not orbit the earth at a 5 degree angle. How would this change the predictability of an eclipse happening every month?
Answer:
Without the tilt, lunar eclipse will happen every month.
Lunar eclipse will happen each month, because of this.
Yikes ;-;
I’m stuck- Help-
Answer:
I'm pretty sure this is potential energy
Explanation:
Potential energy is energy held by an object when its let go its kinetic energy
Which chemical equation best represents the law of conversation of matter?
HELPPP ME ASPAP I'LL GIVE YOU BRAINLIST (NO NONSENSE PLS)
1. Nobelium has an atomic number of 102 and an atomic mass of 259. Explain how to calculate how many neutrons are in the most common form of Nobelium. Include a mathematical expression to help explain your answer (example: 1+1 = 2)
2. The atomic mass of Mercury is 200.592. The atomic number for Mercury is 80. As protons and neutrons are only available as a whole, how do scientists determine an atomic mass reported as a decimal number? Explain your answer using Mercury as an example.
Answer:
1) 157 Neutrons, 2) the decimal is simply is due to isotopes, because the elements atomic mass is an average of these isotopes multiplied by its abundance(or percentage on earth.) For Mercury, it has many isotopes(an element with a different mass number, logically the atomic mass listed on the periodic table as a mass has 100% abundance, therefore this is used to find the most abundant mass for that particular element/molar mass) likewise, Mercury has an atomic mass of 200.59 u, as one mol of Hg(mercury) is 200.59 grams.
Explanation:
The formula for Neutrons in an atom of an element is calculated by finding the
An element has a mass of 39.2 and an atomic number of 19. How many protons does this element have? How many neutrons? How many electrons?
Answer:
19 protons, 19 electrons, and 3 neutrons
Explanation:
the atomic number is 19 so the protons are the same, 19, and the electrons are the same as the proton, because protons are positive and electrons are negative so they have to balance out and the neutrons ➗ mass number by the atomic number.
Which definition is correct?
a physical change creates a new substance because bonds are broken or formed
a physical change can happen without changing any characteristics of the substance
a chemical change occurs when the substance remains the same but the shape, or other physical characteristics change
a chemical change produces a new substance by breaking and forming new bonds
Answer:
last one is correct
Explanation:
bcoz when a reaction takes place there is the formation of new products with the help of old one .
Which scientist's atomic model is most recent?
A. Dalton's
B. Rutherford's
O c. Thomson's
D. Bohr's
Answer:
D. Bohr's
Explanation:
I just did the test, and got it right! Hope this helps.
It was Niels Bohr who discovered the modern atomic model. This model revealed the revolution of electrons and determination of energy levels and momentum of electrons. Hence, option D is correct.
What was atomic model?Various atomic models discussed about the structure and electronic properties of atom. It was Dalton who found that atom is indivisible and combination of atoms make a compound.
Later J.J . Thomson discovered electrons the subatomic particles. But this model does not found the orbitals for electrons and energy levels. Rutherford proposed then the nuclear model of atom.
Nuclear model of atom described that the nucleus contains the positively charged particles protons and the negatively charged particles electrons are revolving around the nucleus.
Later Bohr explained the revolution of electrons around the nucleus with the aid of quantum mechanics and he found that the electrons revolves through a circular paths of fixed energy. By this model momentum and energy of electrons can be calculated.
Hence, Bohr's model is most recent.
To find more about Bohr's model, refer the link below:
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What is the temperature range on the moon?
Answer: Daytime temperatures near the lunar equator reach a boiling 250 degrees Fahrenheit (120° C, 400 K), while nighttime temperatures get to a chilly -208 degrees Fahrenheit (-130° C, 140 K).
plzz help meee!
Noah rides his bike 16 kilometers in 2 hours. What is his average speed?
Question 9 options:
A)
8 miles per hour
B)
8 kilometers per hour
C)
32 meters per hour
Hey Guys... I need help again...
Having freckles (F) is dominant over not having freckles (f). A parent with freckles is crossed with a parent without freckles. The Punnett square shows the possible genotypes of the offspring.
What is the genotype of each square?
A: FF Ff ff
B: FF Ff ff
C: FF Ff ff
D: FF Ff ff
Answer:
A: Ff
B: ff
C: Ff
D: ff
Explanation:
You basically look at the box it's asking for, let's use A as an example. On the top where the A column is there's F, so that's one of the thingys I forgot what they're called. Next look at the row of A, and there's f. Put the 2 together and you get Ff. Reminder that any uppercase ones come first.
Identify the feature of the ocean floor covered by the green box.
A. Coral Reef
B. Abyssal Plain
C. Beach
D. Mid-Ocean Ridge
The photo shows an animal called a water flea. Which level of organization is it an example of?
A. Organism
B. Organ system
C. Cell
D. Tissue
Answer:
A. organism i think
Answer:
the answer it's A Organism
:
I did the test
The imagine shows the atomic arrangements of four different substances.
Which are compounds and why?
What is the connection between the solar system and the Earth
did you know you have to answer 1000 questions to be able to message someone?
Answer: i didnt know that
Explanation:
Answer: Yes this is in fact true
Explanation:
Help me with my waves homework. I need to measure the 3 waves and answer the 2 questions.
Answer:
they are 2 3 i think
Explanation:
When citric acid reacts with baking soda, a salt, water and a gas are produced. What is the name of the gas?
a) carbon dioxide
b) oxygen
c) sodium citrate
d) water vapor
Answer:
The answer is A
Explanation:
Please help, I’ll fr give 5 stars and Brainliest ;-;
Choose all the answers that apply.
Which of the following is true about the carbon-oxygen cycle?
The atmosphere stores more carbon dioxide than the ocean.
Plants use oxygen to make food during photosynthesis.
Carbon dioxide is added to the atmosphere by burning fossil fuels.
Carbon dioxide is a waste produce of respiration.
Answer:
B. is the answer. :)
Explanation:
have a good day <3
The carbon cycle is the rotation of the carbon and its compound in the atmosphere. carbon is added to the atmosphere by burning fossils and is a waste product of respiration. Thus, options C and D are correct.
What is a carbon cycle?A carbon cycle is a biogeochemical cycle that involves the reuse of the carbon from various sources that involve the atmosphere and organisms. The cycle repeats itself again and again.
When fossil fuel is burnt carbon dioxide along with some gases are released into the atmosphere. Also, carbon dioxide is a waste product of cellular respiration. Most of the carbon is present in rocks, oceans, and the atmosphere.
Therefore, the burning of fossils releases carbon.
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(04.01 MC) 20 POINTS!!!!!!!!!!!!!!
Greg wrote the following steps in the formation of sedimentary rocks.
Step 1: Weathering of rocks forms sediments
Step 2: Sediments are heated
Step 3: Sediments are deposited
Step 4: Compaction and cementation forms rocks
Which step contains an error?
Select one:
a. Step 1
b. Step 2
c. Step 3
d. Step 4
Please answer all of the questions , also please dont answer if your not going to seriously answer my questions.
Answer:
oh that's really hard
Explanation:
but I'll try my best
Help please omg ;-; REEEEEEEE
Cells use energy to carry out various cell processes. Which of the following molecules store energy for the cell to use?
Group of answer choices
Water
ATP
DNA
Chloroplast
Answer:
ATP
Explonation: It is caused by the sugar molecules that are broken-down