where are examples of short term enivronmental change? check all that apply
A. tsunamis
B. El Niño
C. large asteroid and comet impacts
D. volcanic eruptions
E. global warming
HELP! A 25-mL solution of 2.0 M hydrobromic acid is kept in a bottle. How many moles of the acid is in the solution?
Answer: hello mason
Explanation: figure it out yourself
Why a hot cup if water has more thermal energy than a cold cup of water?
Answer:
The hotter the substance, the more its molecules vibrate, and therefore the higher thermal energy
:)
Answer: Hot water has more thermal energy because the particles are farther apart thus they are moving faster. As particles move faster their thermal energy increases.
Explanation: Look in answer
The offsprings' traits depend on which parent the offspring inherited more copies of genes from. True or False?
Answer:
false
Explanation:
i did the test :)
The offsprings' traits depend on which parent the offspring inherited more copies of genes from. This statement is false.
What is gene ?The biological and functional component of heredity was conveyed from parent to child. Genes are bits of DNA, and the majority of genes include instructions for producing a particular protein.
However, it wasn't until Wilhelm Johannsen proposed calling the Mendelian factors of heredity genes that the name began to catch on. The suggested term was derived from the Greek word "genos," which means "birth." The term gave rise to others like genome.
Through their genes, parents transmit features or qualities to their offspring, such as eye color and blood type. There are several illnesses and medical disorders that can be genetically handed down. Sometimes a trait might take on many different forms.
Thus, The offsprings' traits depend on which parent the offspring inherited more copies of genes from. This statement is false.
To learn more about gene, follow the link;
https://brainly.com/question/787658
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when the other girl thicc
Explanation:
let's make this swamp great again
Will mark branliest!! and 50 points for right answer!
1. which solvent resulted in the best separation of ink? oil or alcohol
2. which marker had a red spot or streak with an Rf value of approximately 0.82? Maker 1, 2, 3, or none?
3. which spot has the lowest rf value in the marker 3s chromatogram? yellow or purple?
4. which marker had a yellow spot with an rf value of approximately 0.60? Marker 1,2,3 or none?
Answer:
Alcohol, 0.63 I don't know the rest the rest
Explanation:
Answer:
Explanation:
1. Alcohol
2. Marker 1
3. Purple
4. Marker 2
Filling out the lab paper gives you the answers. These were all correct.
A.What will sea levels be in 20 and 100 years compared to now????? B.What will the pH of the ocean be in 20 and 100 years compared to now????
give an example of how carbon can cycle through an environment
A teacher performed a demonstration of a chemical reaction by stretching a ballon containing Sodium bicarbonate (baking soda) over the top of a flask containing acetic acid (vinegar). When the sodium bicarbonate was added to the acetic acids the ballon began to inflate shown I'm the figure.
What will the total mass of the flask, the ballon, and products be after the reaction?
A. Less than 100g, because some of the solid baking soda disappears
B. 100g, because all of the atoms of the reactants remain in the flask
C. Less than 100g, because the gas has less mass than the solids and liquids
D. 100g, because the volume of gas inside the balloon has increased
Explanation:
D. 100g, because the volume of gas inside the balloon has increased
In chemical reactions that occurs in closed systems, the amount of matter is conserved. The total mass of the system is conserved because the gas did not escape and the volume has increased,
Answer:
d
Explanation:
What is correct about solubility of
substances?
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А
B
с
21. Which picture shows an irregular galaxy?
A. Image A B. Image B C. Image C
D. None of the abc
22. Alhich picture shows a spiral galaxy?
PLEASE HELP DUE IN 41 MINUTES
What is the percent of phosphorus by mass in phosphoric acid,
H3PO4?
Use 1.008 g/mol for the molar mass of hydrogen, 16.00 g/mol
for the molar mass of oxygen, and 30.97 g/mol for the molar
mass of phosphorus.
20. What is the momentum of a 0.15-kilogram baseball moving at 20
m/sec?
1,5 kg*m/sec
3 kg*m/sec
O 15 kg*m/sec
O 30 kg*m/sec
What is in with those numbers? H2O?
Answer:
hydrogen atom and oxygen atom
Is a blender (at home) an example of electrical to mechanical energy? If so, why? Please explain thoroughly
Answer:
Yes it is
Explanation:
You use electricity to power the blender itself, then after you power it the potential energy becomes kinetic energy which equals mechanical energy in the blender. So yes, a blender is an example of electrical to mechanical energy.
What has to be equal during chemical equilibrium?
Select one:
a.The rate of forming products and the rate of reaction
b.The rate of the forward reaction and the rate of the reverse reaction
c.The rate of forming reactants and the rate of forming products
d.The rate of the forward reaction and the rate of forming reactants
Answer:
answer is B
Explanation:
please tell me if im incorrect, i'll fix it asap.
The rate of the forward reaction and the rate of the reverse reaction has to be equal during chemical equilibrium. Therefore, the correct option is option B.
When the forward and reverse reactions in a chemical reaction happen at the same rate, there is no net change over time in the concentrations of reactants and products. This is known as chemical equilibrium. The concentrations of the reactants and products are constant in this state, but the reaction is still ongoing for each species. The equilibrium constant (K), also referred to as the ratio of reactant to product concentrations, is constant at equilibrium. The temperature and the stoichiometry of the balanced chemical equation affect K's value.
To know more about chemical equilibrium, here:
https://brainly.com/question/26036646
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Really need help!! Don’t understand:( 40 points
If 100.0g of nitrogen gas (N2) is reacted with 100.0g of hydrogen gas (H2) what is the limiting and excess reactants?
Hint: convert grams to moles for each reactant and then convert to moles of NH3. You need your balanced equation from answer 1 to determine the mole relationship between each reactant and the product NH3. Use the periodic table to determine the molar mass of all chemical formulas. Fill in the “?” Blanks below to show your work.
Please please please fill in the blanks...
Molar mass of H2= ____ g/mol
100.0g H2 • 1 mol H2/? g H2 • ? Mol NH3/ ? Mol H2 = ? Mol NH3
Molar mass of N2= ? g/mol
100.0g N2 • 1 mol N2/ ? g N2 • ? Mol NH3/ ? Mole N2 = ? Mol NH3
Molar mass of NH3 = ? g/mol
100.0g N2 • 1 mol N2/ ? g N2 • ? Mol NH3/ ? Mol N2 • ? g NH3/ 1 mole NH3 = g NH3
Pretty please help me :( PWEAASEEEEEEE
HELPPPP MEEEEE I NEED THIS TODAY
What are uses of metals??
Instructions:
1. Do not give the invalid answer.
2. I want full correct answer with full explanations.
Answer:
Different uses of Metals
Metals are usually very strong, most durable and highly resistant to everyday wear and tear. As such, they have been used since ancient times for a lot of things. And even today with advances in technology and a lot of other things the uses of metals have broadened greatly. Metals even play a key role in the economy. Let’s look at some important and popular metals uses.
In the Construction Industry
In electronics
In medicine
Machinery, Refractory and Automobiles
Decorative products
Other Uses
In the Construction Industry
Metals are the main component in the construction industry. Metals like iron, steel amongst others are the main materials used in construction of buildings and even homes.
In Electronics
Another important application of metals are in electronics. As metals are good conductors of electricity, they are used to making wires and parts for equipments and gadgets that function on electrical current. Popular examples include, TV, mobiles, fridge, iron, computers etc.
In medicine
If you are wondering how, well from a biological perspective metals are found as micro-elements in our bodies. Besides, the presence of metal elements is crucial for several functions like transmission of nerve impulses, oxygen flow, reaction between enzymes etc. Some medicines are therefore liaised with metal compounds to treat certain deficiencies or sickness. Metals like, iron, calcium, magnesium, potassium titanium, and aluminum are used commonly in medicine in the form of antacids.
Apart from this, most of the equipments and tools used are made from metals.
Machinery, Refractory and Automobiles
This is one of the most common use of metals. They are used extensively in manufacturing machines for industries, agriculture or farming and automobiles which include road vehicles, railways, airplanes, rockets etc. Here, the commonly used metals are iron, aluminum and steel.
Besides these, most of the utensils that is used in the kitchen are made from metals like steel, aluminum, and copper. Due to a high temperature withstanding nature metals are preferred the most.
Decorative products
Metals such as platinum, gold, and silver come under the category of precious metals and have high economical value. These metals are widely used in making jewellery sets or for some decorative piece.
Other Uses of Metals
Some other uses and applications of metals are, they play an important role in security as the metals are used in making locks, strong safe, doors etc. Apart from this, furnitures are made from metal these days. Metals also find their uses in the military where they are used to manufacturing weapons and ammunitions. Some metals are used in galvanizing to protect from rusting.
These are some popular uses of metal. To know more about metals, different types, properties of metals and more you can keep visiting BYJU’S or you can also download our app for interesting content and learning experience
3
Li
6.941
Atomic # =
Atomic Mass =
# of Protons =
# of Neutrons =
# of Electrons =
Answer:
36.94133.23Explanation:
pls mark brainliest
what went wrong with the key
Answer:
omoih
Explanation:
Which of the following is not a stimulus?
A hearing a loud noise
B. sneezing
C. touching a hot object
D. tasting a lemon
Answer:
B. sneezing
Explanation:
Because every other one is an action resulting in stimulation.
Which type of prevailing wind would carry more water vapor (humidity)? (Choose one)
a. A global wind moving over the ocean
b. A global wind moving over land
Answer:
a global wind moving over the ocean
Explanation:
because it's picking up moisture from the ocean and kind of carrying the water with the wind and water obviously is part of the evaporation so it would kind of turn into water vapor which will have more humidity along with the heat because how the heat warms the water kind of like the sweat from a sweat glands if that makes sense I don't know if that makes sense to you but it makes sense to me lol
15. What is the name of the part of a cell that allows molecules in, such as glucose and oxygen?
a. Cell wall
b. Ribosome
c. mitochondria
d. Cell membrane
Answer:
D
Explanation:
Hope This Help??
Please Mark Me Brainly!!
How many moles are there in 100g oh H2O?
Answer:
5.55 moles
Explanation:
A magnet can pull the iron filings out of a mixture of sand and iron
filings.
TRUE
FALSE
Answer:
this is true
Explanation:
because the sand is left behind for it isn't magnetic
Please help I’m stuck
Answer:
wouldn't it be the #2 because +∆H um I forgot
hey guys, i found this marble outside and covered in grease. so i took it in to wash it. can you please tell me what it is made of...plz
Answer:
it's probably just a ball of metal
Explanation:
maybe a metal marble.