Answer:
Rubidium
Explanation:
Rubidium is an alkali metal that has 37 protons 48 neutrons and 1 valence electron
A 10-ft moving truck has a volume capacity of 402 cubic feet, which is equivalent to 1.138 x 10^7 milliliters. What
mass of silver, in megagrams, will fit in this moving truck? The density of silver is 10.49 g/mL.
_________ Mg (input numerical answer only)
Answer: The mass of silver is 1.19 X 10^14 M g
Explanation: The volume of the truck is 402 cubic feet or 1.138 x 10⁷ mm.
The density of silver is 10.49 g/mL.
We need to find the mass of silver that will fit in this moving truck. Density equals mass divided by volume. So,
d= m/v where m= mass m= d x VM=10.49 g/mL X 1.138 X 10∧7 mLM=119376200 g 1 gram=10⁻⁶ Megagram 119376200= 1.19 X 10^14 Mg hence the mass of silver is 1.19 X 10^14 M g hopefully this will help you please mark me as brainlist
Which human activity contributes to the formation of acid rain
Burning fossil fuels such as coal and gasoline
We know that burning fossil fuels, such as coal and gasoline, is a significant human activity that contributes to the formation of acid rain.
When fossil fuels are burned, they release pollutants into the atmosphere, including sulfur dioxide (SO2) and nitrogen oxides (NOx).
These pollutants can react with water, oxygen, and other chemicals in the atmosphere to form sulfuric acid (H2SO4) and nitric acid (HNO3), which are major components of acid rain.
Therefore the correct answer is
Burning fossil fuels such as coal and gasoline
An example of pressure causing metamorphism is?
A. lava cooling from a volcano
B. when two tectonic plates collide and add folds into the rock
C. magma touches parts of the lithosphere
D. everyone in the world jumping up and down at the same time
piece of roasted salted fish is put in a mouse trap. explainwhy the mouse comes to the trap
Answer: Food
Explanation:
The rat smells the food or sees the food it goes towards the food to eat it.
When a wave passes by, the floating object will move _________________.
The object is not carried forward with the wave because ______________________.
Answer:
to the bottom (1
the object has more mass than the object (2
When a wave passes, by the floating object moves to the bottom. The object is not carried forward due to the fact that the object has more mass than the wave.
What is a wave?A wave has to do with the transportation of energy without the transportation of matter.
It moves energy from one point to another point without displacing the medium.
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The area where the land meets the sea is called the coastline. This area can have different physical features depending on its location. Some common features of coastlines are beaches, cliffs, bays, harbors, estuaries, and dunes. Beaches are made up of loose particles like sand and gravel that are deposited by the sea.
Choose the five physical tests for identifying rocks:
metamorphic
sedimentary
color
streak
hardness
luster
igneous
cleavage
What kind of chemical bond is formed between nonmetals? Explain your answer.
Answer:
The ionic bond is formed due to an electrostatic force of attraction between two oppositely charged ions. This bond is usually formed between a metal and a nonmetal. Prior to the electrostatic attraction, there is a total transfer of valence electrons from one atom to the other atom.
Explanation: hope that helps
In general, nonmetals form covalent bonds, metals and nonmetals form ionic bonds, and metals form metallic bonds.
What are non-metals?Non-metals are natural materials that do not generate heat or electricity and are structurally brittle, making them difficult to roll, mold, extrude, or press.
Non-metallic elements in the periodic table include hydrogen, carbon, nitrogen, oxygen, phosphorus, arsenic, and selenium.
Ionic compounds are formed when metals and nonmetals combine, whereas covalent compounds are formed when nonmetals combine with other nonmetals.
Metal atoms have only a few electrons in their outer shell, whereas non-metal atoms have many electrons.
This means that metals are more likely to react with nonmetals. Electrons transfer from the metal to the nonmetal when it reacts with it.
Thus, there will be covalent bonding between nonmetals.
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What is common among elements in the same group?
Answer:elements are arranged in increasing atomic number from left to right
Explanation:
Suppose you are shooting a basketball toward a hoop. As the ball rises in the air, its ---------------- energy increases and its ---------------------------- decreases.
Answer:
Suppose you are shooting a basketball toward a hoop. As the ball rises in the air, its -------Potential --------- energy increases and its -----------kinetic----------------- decreases.
Explanation:
Kinetic energy is the energy of movement or change. Potential energy is the energy a system has as a result of being able to undergo some change. ... As an object falls its potential energy decreases, while its kinetic energy increases. The decrease in potential energy is exactly equal to the increase in kinetic energy.
Create a list of 5 potential jobs that students of chemistry can obtain. Which job appeals to you the most?
Answer: Analytic Chemist, geochemist, chemistry teacher, hazardous waste chemist, and forensic scientist. The job that appears to me the most is a chemistry teacher. Hope this helps!
Explanation:
A chemistry research scientist, a chemistry teacher, a chemistry quality analyst, a forensic scientist, and a geochemist are the jobs that a chemistry graduate can do.
What is chemistry?Chemistry is the science that deals with the composition, properties, and structure of substances, defined mainly as elements and compounds is known as chemistry. Also, the transformations they underwent by them and the energy that they release or absorbed during these processes is studied in the field of chemistry.
Every substance found on Earth, whether it is naturally occurring or artificially produced, will have one or more of the hundred-odd species of atoms. These have been identified as elements.
The atoms, in turn, are composed of more elementary particles called subatomic particles. These particles are the basic building blocks of all chemical substances. Thus there is no quantity or amount of oxygen, mercury, or gold, for example, smaller than an atom of that substance.
Therefore, chemistry is concerned not only with the subatomic domain or the subatomic parts of the ecosystem. But, it is concerned with the properties of atoms and the laws that govern their combinations, and how the knowledge of these properties can be used to achieve specific purposes.
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If all three metals were exposed to extremely high temperatures, which would be the last to melt? (copper, gold, mercury)
Answer:
mercury
Explanation:
From these three metals, mercury would melt the fastest. Its kinda like water, it changes states quickly unlike gold and copper
Jennifer and Cody are mixing substances during a lab experiment. They observe the four effects listed below. Which of these effects indicates that a chemical reaction has taken place between two substances?
A pink powdered substance turns water pink when they are mixed together.
A piece of shiny metal begins to bubble when placed in a clear liquid.
A white solid disappears when mixed with water.
A clear, lemon-scented liquid continues to smell like lemon when it is mixed with water.
Answer:
number 2
Explanation:
I'm gonna try this for the last time. Who wants to write a book with me?
Answer:
me <3
Explanation:
Can you help me please
Answer:
D
Explanation:
DDDDD
When we rewrite the given in a simpler unit we have 7.9 ms-1.
What is dimensional analysis of formulas?By looking at the units of the quantities involved, dimensional analysis is a technique for determining whether a physical equation or formula is right. The essential tenet of dimensional analysis is that the quantities being multiplied or divided in the equation must have units that are equal to the units of the final result.
We know that we have to apply the principles that apply to dimensional analysis in the question and we have that;
m^2.s/m.s^2
= ms-1
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1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
Sodium chloride (NaCl) is made from ___ of sodium (Na) and ___ of chlorine (Cl).
Blanks: One Atom and Two Atom
Answer:
one atom, one atom.
Explanation:
Sodium chloride is made from one sodium atom and one chlorine atom.
Sodium has a charge of +1, Chlorine has a charge of -1. These cancel each other out leaving only one atom for both sodium and chlorine.
30 POINTSSSSSSSSSSSSS how is increasing the amount of sunlight most likely to affect an ecosystem? A. by increasing soil moisture B. by decreasing photosynthesis C. by increasing plant growth D. by decreasing the food supply
Answer:
here
Explanation:
The increase in sunlight up to a limit might result in an increase in the photosynthesis process as well as in transpiration. More amount of energy will be produced by plants.
How can a chemical reaction be sped up?
Select from the drop-down menu to correctly complete the statement.
Pack in more of the reactant to increase the
A.) Catalyst
B.) Concentration
C.) Surface Area
D.) Temperature
.
Answer: the answer would be A) Catalyst because it can help speed up the chemical reaction
Explanation: the answer would be A) Catalyst because it can help speed up the chemical reaction. Hopes this helps :)
Ways to help our environment- please make it specific and explaining what to do and how to do it
Answer:
Some ways to help out society is to do things that benefit the world such as let's say community service. To be more specific community service is when everyday citizens of the society decide to do voluntary work in order to help people and or the environment. Some examples could be walking kids home from school, picking up trash on the ground, and fostering a shelter animal.You can do this by gathering people who agree with helping the earth and trying to make it a better place or even starting off little such as giving nice stuff that you don't need or use to the people who do need it such as the homeless shelter...
Explanation:
ik im not right.. or am i?
Answer:
C
Explanation:
Average Speed = total distance covered / total time taken
the distance she covered didnt change because the race track stayed 5km.
However, she did take a longer time to complete the race because she stopped in the middle to tie her shoes
Therefore, C is the answer.
Is there a relationship between CO2 levels rising and heavy precipitation? If so, what is it?
Answer:
Explanation:
Yes, there is a relationship between rising CO2 levels and heavy precipitation. As the concentration of CO2 in the atmosphere increases, it leads to a warming of the Earth's surface due to the greenhouse effect. This warming, in turn, causes an increase in the rate of evaporation of water from the Earth's surface, including from the oceans, lakes, and rivers.
This increased evaporation results in more water vapor in the atmosphere, which can lead to heavier precipitation events, including more frequent and intense rainstorms, snowstorms, and other forms of precipitation. This is because warmer air can hold more moisture, making it more likely to produce heavy rainfall.
In addition, the warming of the Earth's surface can also lead to changes in atmospheric circulation patterns, which can further increase the likelihood of heavy precipitation events in some regions.
Overall, the relationship between rising CO2 levels and heavy precipitation is complex and can vary depending on the specific location and other environmental factors. However, there is evidence to suggest that as global temperatures continue to rise due to rising CO2 levels, heavy precipitation events are likely to become more frequent and intense in many parts of the world.
Answer: Yes there is a direct relationship between CO2 and heavy precipitation. Rising in CO2 means increasing the temperature in the atmosphere which causes more water vapor evaporates into the atmosphere and which causes high rainfall or precipitation.
Explanation: Increased atmospheric CO2 levels are causing plant stomata to close, allowing plants to hold more water in their stems, reducing transpiration, and possibly impacting tropical rainfall patterns in varying ways depending on region.
PLEASE HELP
Sort the chemical reactions based on whether they absorb or release energy.
Answer:
Releases Energy:
1) Respiration in cells
3) Activating a cold pack
3) Burning a candle
Absorbs energy:
4) Baking bread
5) Photosynthesis
6) Producing electric current
What happens to the atoms that make up hydrogen fuel as it burns?
Answer:
When hydrogen fuel burns, its atoms combine with oxygen atoms in the air, which creates a chemical reaction that releases energy in the form of heat and light. The hydrogen atoms lose their outermost electrons, becoming positively charged ions (protons). These ions combine with the oxygen atoms to form water molecules (H2O), which evaporate into the air as steam. Therefore, the atoms that make up hydrogen fuel ultimately become part of water molecules during the process of combustion.
Explanation:
What is the function of a cell wall?
A) to protect and support the cell
B) to perform different functions in each cell
C) to prevent water from passing through it
D) to prevent oxygen from entering the cell
Answer:
А)To protect and support the cell
What we eat, and how we move our bodies, effects our blood. How does that end up affecting our other organs in the body
Answer:
The digestive system converts the foods we eat into their simplest forms, like glucose (sugars), amino acids (that make up protein) or fatty acids (that make up fats). The broken-down food is then absorbed into the bloodstream from the small intestine and the nutrients are carried to each cell in the body.
Answer:
The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
The small intestine has three parts. The first part is called the duodenum. The jejunum is in the middle and the ileum is at the end. The large intestine includes the appendix, cecum, colon, and rectum. The appendix is a finger-shaped pouch attached to the cecum. The cecum is the first part of the large intestine. The colon is next. The rectum is the end of the large intestine.
Explanation:The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
The small intestine has three parts. The first part is called the duodenum. The jejunum is in the middle and the ileum is at the end. The large intestine includes the appendix, cecum, colon, and rectum. The appendix is a finger-shaped pouch attached to the cecum. The cecum is the first part of the large intestine. The colon is next. The rectum is the end of the large intestine.
Jamie completes the following steps in an experiment to investigate how temperature affects how fast something will rust in water. He places a nail in a bowl of water in the sun and a nail in a bowl of water in the shade. He also leaves an iron nail out of the water in a dry bag out of the sun. Why would Jamie leave one out of the water and out of the sun?
A Jamie also wants to test if the water affects how fast the iron nail will rust.
B Jamie notices that the size of the nail is different, so he does not want to use it later.
C Jamie doing all these steps to create a control group to compare his results to.
D Jamie puts the nail in a cooler place to see if it will rust as fast as the other items.
Answer:
C
Explanation:
Hurry
A student uses this diagram to understand the parts of a fish. The student then uses an identification key to classify different types of fish.
Based on the key, which of these fish is most likely a bluegill?
The ferst imige is for the qwestion the rest are the answers
Answer:
The 3rd image is a blue gill
The diagram below shows changes to the nucleus of an atom.
Which process is occurring in the diagram?
1. Energy is released as a result of atomic fission.
2. Energy is absorbed as a result of atomic fission.
3. Energy is released during the combustion of fossil fuel.
4. Energy is being stored during the formation of fossil fuels.
To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. Therefore, the correct option is option 1 that is energy is released as a result of atomic fission.
What is atom?Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.
In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron. Energy is released as a result of atomic fission.
Therefore, the correct option is option 1 that is energy is released as a result of atomic fission.
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The polyatomic nitrate ion (NO3−) is present in both the products and the reactants of the chemical equation shown below.
Ba(NO3)2 + 2LiOH → Ba(OH)2 + 2LiNO3
How many nitrate ions are in the products and the reactants of the chemical equation?
Answer:
Explanation: Two in reactants and two in products.