Astrology is the science of studying the stars. True or false need help please

Answers

Answer 1
i  looked it up and i pretty sure  its true 

Answer 2


Astrology is the science of studying the stars.

True

False

Trueeeee


Related Questions

What is a sample of matter that has definite physical and chemical properties?

Answers

should be solid , because a liquid has no definite shape and gas has neither just chemical properties

Difference between a proton, electron and neutron and where they are located

Answers

A proton has a positive charge, a neutron has a neutral (no charge) charge, and an electron has a negative charge. The protons and neutrons are in the center of the atom and they make up the nucleus. The electron is moving around outside of the nucleus.

All our sources of fresh water, like rivers, wells, and aquifers, are dependent on

Answers

The water cycle is what it depends on
Answer: The Water Cycle 

I hope this helps!

What is the average speed of an object that travels 50 miles in 2 hours?

Question 3 options:

50 mph


25 mph


100 mph


2 mph

Answers

Well, this is simple :) 

So you know that this object travels 50 miles in 2 hrs. So how many miles would it travel in 1 hr. Simply split 50 in half. So this is 25mph

25mph

What is cellular respiration?

A. Converting sunlight to glucose to provide energy for plants
B. Building glucose from smaller hydrocarbons
C. Exchanging O2 for CO2 in the blood within the lungs
D. Using glucose to provide energy for the body

Answers

Answer:

It's D.

Explanation:

Trust me.

which of the following has the smallest atomic radius: Mg2+, Mg, Ca2+, or Ca?

Answers

The appropriate response is Mg2+. It has the smallest radius the would mean the littlest separation from it's the furthest shell to the core 
Since magnesium has one less shell that calcium, Mg would have a little nuclear range. Besides, a particle of a component will have a little nuclear sweep than it's molecule be utilized as a part of its particle frame it has lost a shell

Answer:

Mg2+

Explanation:

Name the stellar process in which the fusion of hydrogen produces other elements.

Answers

Hydrogen fusion generates the energy for proton - proton chains and the carbon nitrogen oxygen cycle. It is the nuclear fusion of 4 protons to form a helium 4 nucleus.
Final answer:

Nucleosynthesis is the stellar process in which the fusion of hydrogen produces other elements, such as helium. This process occurs through the proton-proton chain reaction in stars like the Sun.

Explanation:

The stellar process in which the fusion of hydrogen produces other elements is called nucleosynthesis. During nucleosynthesis, hydrogen nuclei (protons) combine to form helium nuclei in a process known as the proton-proton chain reaction. This is an important example of nuclear fusion that occurs in the Sun and other stars, and it is responsible for the production of energy and the creation of heavier elements.

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Calculate the number of chlorine atoms that are present in 66.05 g of dichloromethane, ch2cl2. when you have the number, take its log (base 10) and enter it with three decimal places and without units.

Answers

From the periodic table:
mass of carbon = 12 grams
mass of hydrogen = 1 gram
mass of chlorine = 35.5 grams
Therefore,
molar mass of CH2Cl2 = 12 + 2(1) + 2(35.5) = 85 grams

number of moles = mass / molar mass
number of moles of CH2Cl2 = 66.05 / 85 = 0.777 moles

One mole of CH2Cl2 contains two moles of Cl and each chlorine mole has Avogadro's number of atoms in it.
Therefore,
number of chlorine atoms in 0.777 moles of CH2Cl2 can be calculated as follows:
number of atoms = 0.777 * 2 * 6.022 * 10^23 = 9.358 * 10^23 atoms

Now, we will take log base 10 for this number:
log (9.358 * 10^23) = 23.97119

The base-10 logarithm of the number of chlorine atoms is 23.971.

Calculate the number of chlorine atoms that are present in 66.05 g of dichloromethane, CH₂Cl₂. When you have the number, take its log (base 10) and enter it with three decimal places and without units.

Step-by-Step Explanation:

First, determine the molar mass of CH₂Cl₂:

Carbon (C): 12.01 g/mol

Hydrogen (H): 1.01 g/mol (each, so 2.02 g/mol for H₂)

Chlorine (Cl): 35.45 g/mol (each, so 70.90 g/mol for Cl₂)

Total molar mass of CH₂Cl₂ = 12.01 g/mol + 2.02 g/mol + 70.90 g/mol = 84.93 g/mol

Calculate the moles of CH₂Cl₂ in 66.05 g:

66.05 g / 84.93 g/mol = 0.7774 mol CH₂Cl₂

Since each molecule of CH₂Cl₂ contains 2 chlorine atoms, calculate the moles of chlorine atoms:

0.7774 mol CH₂Cl₂ x 2 = 1.5548 mol Cl atoms

Convert moles of chlorine atoms to the number of atoms using Avogadro's number (6.022 x 10²³ atoms/mol):

1.5548 mol x 6.022 x 10²³ atoms/mol = 9.36 x 10²³ chlorine atoms

Take the logarithm base 10 of the result:

log10(9.36 x 10²³ )= 23.971

Therefore, the logarithm (base 10) of the number of chlorine atoms in 66.05 g of dichloromethane, CH₂Cl₂, is 23.971.

In water, naoh almost completely separates into na+ and oh- ions. thus, naoh is _____.​

Answers

In water, naoh almost completely separates into na+ and oh- ions. thus, naoh is Stong base.
Strong bases and strong acids completely ionized in the water,So when NaOH is added into water, it is completely ionized and forms Na+ and OH- ions and it shows that it is a strong base.

When atoms lose or gain electrons in chemical reactions they form?

Answers

When atoms lose or gain electrons in chemical reactions they form? 
Ions

When atoms loose or gain electrons  in chemical reactions they form ions on loosing electrons they form cations and on gaining electrons they form anions.

What are ions?

An ion is defined as an atom or a molecule which has a net electrical charge. There are 2 types of ions :1) cation 2) anion . The cation is the positively charged ion and anion is the negatively charged ion . As they are oppositely charged they attract each resulting in the formation of ionic bond.

Ions consisting of single atom are mono-atomic ions while which consists of two or more ions are called as poly-atomic ions . They are created  by chemical interactions . They are very reactive in their gaseous state  and rapidly react with oppositely charged ions  resulting in neutral molecules.

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A bond formed by electrical attraction between two oppositely charged ions is called

Answers

Ionic bond, also called electrovalent bond , type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

Which bond or interaction would be most difficult to disrupt when compounds are placed into water?

Answers

Your answer would be a covalent bond

Do you expect to find an atom with 26 protons and mass number of 52 in nature

Answers

yes, i expect to find an atom with 26 protons and mass number of 52, because if it has different number of neutrons it could be a type of isotope. As if there is different number of neutrons in an atom, they make an isotopes of that atom and if we add the number of neutrons and number of  protons we will find the mass number of that atom.

By what two characteristics are all the elements of the periodic table placed in a particular row and column

Answers

Rows are defined as which shell of the element contains the outermost electrons. As the rows increase, the outermost shell value increases, as well. The columns are defined as which block contains those outermost electrons, and the shape at which that orbital takes.

An atom with _______________ electrons in its outer shell makes one happy, satisfied atom

Answers

8 electrons are needed to be stable

In a redox reaction, why does an element’s oxidation number increase?

A.) An element’s oxidation number increases because it gained electrons.
B.) An element’s oxidation number increases because it lost electrons.
C.) An element’s oxidation number increases because it was heated.
D.) An element’s oxidation number increases because it was reduced.

Answers

B.) an elements oxidation number increases because it lost electrons.

#PlatoLivesMatter 

Answer: B) An element’s oxidation number increases because it lost electrons.

Explanation:

A redox reaction is a chemical reaction in which one or more electrons are transferred between the reactants, causing a change in their oxidation states.

The oxidation state or oxidation number is defined as the sum of positive and negative charges of an atom, which indirectly indicates the number of electrons that the atom has accepted or yielded.

By accepting electrons, the oxidation state of an atom decreases, becoming more negative, and therefore, it is reduced. On the other hand, an element that yields electrons increases its oxidation number and oxidizes.

In this way, an element’s oxidation number increase because it lost electrons, becoming a more positive ion.

Describe 2 characteristics all metals should display?

Answers

Hard protective outer layer
Difficulty to destroy
They are usually shiny, malleable, and hard. Metals are also good conductors of electricity.

What part of the periodic table tells you the number of protons found in the nucleus of the atom of that element?

Answers

Elements are arranged by their atomic number, which is also the number of protons they have.

Final answer:

The atomic number on the periodic table indicates the number of protons in the nucleus of an atom of that element, defining its identity. This number is usually found at the top of the element's square on the table, allowing for easy identification and distinction between elements.

Explanation:

The atomic number on the periodic table tells you the number of protons found in the nucleus of the atom of that element. Each element on the periodic table has a unique atomic number, which is usually displayed at the top of the element's square.

This number is crucial because it defines the identity of the element; for instance, hydrogen has an atomic number of 1, meaning all hydrogen atoms have 1 proton in their nucleus. Similarly, helium has an atomic number of 2, indicating that every helium atom has exactly 2 protons in its nucleus.

The periodic table arranges elements in increasing atomic number, and this is the characteristic that makes each element unique compared to all others.

By looking at the periodic table, you can determine the atomic number of an element, and thus know how many protons its atoms contain. This makes the periodic table an indispensable tool for scientists and students alike.

An action potential arriving at the presynaptic terminal causes what to occur? multiple choice voltage-gated calcium ion channels open, and calcium ions diffuse into the cell. voltage-gated sodium ion channels open, and sodium ions diffuse into the cell. acetylcholine diffuses into the cell. ligand-gated sodium channels open, and sodium ions diffuse out of the cell. voltage-gated sodium ion channels open, and sodium ions diffuse out of the cell.

Answers

The answer to this question would be: calcium ions to diffuse into the cell.

The presynaptic neuron would need to release neurotransmitter to the postsynaptic neuron. To do this, the action potential will cause calcium ion diffuse into the cell causing the vesicle with the neurotransmitter to migrate to the cell membrane and release its content. 
Final answer:

An action potential arriving at the presynaptic terminal causes voltage-gated Ca²+ channels to open, allowing calcium ions to enter the cell and triggering the release of neurotransmitters into the synaptic cleft.

Explanation:

When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated Ca²+ channels. Calcium ions enter the cell and initiate a signaling cascade that causes synaptic vesicles containing neurotransmitter molecules to fuse with the presynaptic membrane. This leads to the release of neurotransmitters into the synaptic cleft.

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which of the following elements have properties similar to those of strontium (Sr)
A: Y,Zr, Nb
B: Sb, Te, I
C: F, Br, I
D: Be, Mg, Ca

Answers

Answer: Option (D) is the correct answer.

Explanation:

It is known that elements which belong to same group show similar chemical properties.

This is because elements which lie in the same group have same number of valence electrons. Hence, they tend to show same type of reactivity which makes them exhibit similar chemical properties.

For example, Be, Mg, Ca and Sr are all group 2 elements. Hence, they tend to show similar chemical properties.

Thus, we can conclude that out of the given options Be, Mg, Ca elements have properties similar to those of strontium (Sr).

The quantity of valence electrons in an element's outermost atomic shell lies in what determines that element's valency. For all elements in the same group, the electrical configuration of the outermost shell is the same. Here the correct option is D.

The quantity of valence electrons in an element determines its physical and chemical properties. The number of valence electrons shared by elements belonging to the same group is constant. As a result, the physical and chemical properties of elements belonging to the same group are comparable.

Be, Mg, Ca and Sr are all group 2 elements. Hence, they tend to show similar chemical properties.

Thus, we can conclude that out of the given options Be, Mg, Ca elements have properties similar to those of strontium (Sr).

Thus the correct option is D.

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What is the formula for the binary compound of aluminum and nitrogen?

Answers

This would be AlN, or aluminum nitride.

Hope this helped! :)

As magma cools all of the mineral grains form at the same temperature is this true or false

Answers

Hello there,
The answer for your question is true

Hope this helps :))

~Top

Identify the more stable isotope in each pair.

Answers

i need more information for this question

Eyewash stations should be installed within 25 feet of hazard locations. True or False

Answers

The answer to this question would be: False
Occupational Safety and Health Administration (OSHA) states that the eyewash station should be located "within the work area" and it was interpreted as 10 feet unimpeded travel distance from the hazard location. This distance is calculated in order to avoid potential mixture of substance between the eyewash station and the one that exist on hazard location.

What subatomic particle is responsible for combining the atoms together to form a new substance?

Answers

The answer to this question would be: electron

When atoms bind together, that mean they shared at least one electron. The electron is located on the outer side of the atoms so the electron from an atom can collide with other electrons from another atom. The protons and neutron can't make bind because it was in the middle of the atom and won't collide each other.

Answer : Electrons.

Explanation : The subatomic particle which is responsible for combining the atoms together to form a new substance is ELECTRON.

Electrons are negatively charged tiny particles which are found outside the nucleus and is one of the three subatomic particles. These are responsible for formation of new substance through transfer or sharing of electrons between the atoms of the elements. Mainly the outermost revolving electrons are the ones which undergoes transformation and forms new substance. It influences many physical and chemical properties of the substances.

Chemical reactions with metals may create some interesting results such as a precipitate. What is a precipitate?

Question 3 options:

A. a gas that forms when two liquids are mixed


B. a solid that forms when two liquids are mixed


C. a liquid that forms when two solids are mixed


D. a solid that forms when two gasses are mixed

Answers

The answer to this question would be: B. a solid that forms when two liquids are mixed

Precipitation is creating a solid substance from the solution. The product is called precipitate and the solution would be called supernate. Precipitation could happen because of gravity pulling up the molecule or because the molecule is saturated.

what percentage do the elements hydrogen and helium account for in the universe? A. 100% B. 99.9% C. 98% D.99.8%

Answers

c. 98% this worlds atmostphere is mostly nitrogen tho

The percentage is 99.8% so D

How many electrons can the 7th energy level hold?

Answers

the equation is (n×n)×2. the 7th one can hold 98.

What type of composition does an igneous rock have that contains mostly plagioclase feldspar and about 30 percent dark silicate minerals?

A. basaltic
B. granitic
C. andesitic
D. ultramafic

Answers

the answer is C.) Andesitic.

Answer:

The correct answer is option C, that is, andesitic.

Explanation:

Andesite is the term used for a fine-grained extrusive rocks family, which are generally light to dark gray in appearance. They generally weather to different shades of brown. Andesite mostly comprises plagioclase feldspar minerals and may also comprise pyroxene, biotite, or amphibole as the dark silicate minerals. It generally does not comprise olivine or quartz.

An atom has 40 electrons and 46 neutrons. how many protons does it have?

Answers

Atoms have equal numbers of protons and electrons. So it have 40 protons.
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