Explanation:
Prior preparation is required in a location at risk of natural disasters, this includes a communication system and infrastructure aimed at protecting and educating society. Technology is extremely important for the prevention of natural disasters, through forecasting and monitoring systems it is possible to map and analyze the possible risks and anticipate them with the necessary solutions, such as removing a population from a certain location with a risk of drilling.
It is necessary for the population to be aware, understand the alerts and signals issued in case of risk and follow the guidelines of the trained authorities, in this way it is possible to mitigate the effects of natural disasters.
Dissociation and THEN hydration afterwards is the process of: * 1 point water pulling a compound apart and then surrounding the broken pieces/ions (this is what dissolving is) breaking down the food into simpler nutrients that can be used by the cells a mental process where a person disconnects from their thoughts, feelings, memories or sense of identity
Answer:
water pulling a compound apart and then surrounding the broken pieces/ions (this is what dissolving is)
Explanation:
As we know, water is a polar solvent. What this means is that water can effectively interact with ions in an ionic substance owing to its large dipole moment.
Now, when an ionic substance is dissolved in water, the positive end in water pulls hard on the negative ion of the ionic substance while the negative end in water pulls hard on the positive ion of the ionic substance.
The ionic substance is eventually pulled apart and surrounded by water molecules. This is how an ionic substance is dissolved in water.
what are the properties of acids
Explanation:
Aqueous solutions of acids are electrolytes, meaning that they conduct electrical current.
Acids have a sour taste.
Acids change the color of certain acid-base indicates.
Acids react with active metals to yield hydrogen gas.
Acids react with bases to produce a salt compound and water.
What formula gives the ratio of elements?
Answer:
In a chemical formula, the elements in a compound are represented by their chemical symbols, and the ratio of different elements is represented by subscripts.
Explanation:
Study this chemical reaction: 2Fe + 3CuCl2 = 2FeCl3 +3Cu Then, write balanced half-reactions describing the oxidation and reduction that happen in this reaction.
Oxidation half equation; 2Fe^2+ ----> 2Fe^3+ + 6e
Reduction half equation; 3Cu^2+ + 6e ---->3Cu
What is an oxidation and a reduction reaction?An oxidation-reduction (redox) reaction is a type of chemical reaction that involves the transfer of electrons between two species. Oxidation refers to the loss of electrons by a substance, while reduction refers to the gain of electrons by a substance.
Redox reactions are important in many chemical and biological processes, such as cellular respiration, photosynthesis, corrosion, and combustion. They can also be used in industrial processes, such as electroplating, battery operation, and chemical synthesis.
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how many elements are in 4K2CO3
Answer: 3 elements
Explanation:
They are
K for Potassium, C for Calcium and O for Oxygen
Using the partial periodic table, which statement is correct?
*Oxygen (O) has more protons than chlorine (Cl).
*Iron (Fe) has more protons than silver (Ag).
*Sodium (Na) has more protons than carbon (C).
*Hydrogen (H) has more protons than helium (He).
Answer:
Sodium (Na) has more protons than carbon (C).
hope that helps!
3. Color is a chemical property of a pure substance. From your observations of the color changes in the permanganate oxidation of benzaldehyde, make some deductions about the number of chemical species involved and if the organic compounds or the inorganic compounds are responsible for the colors observed.
Answer:
See explanation
Explanation:
We know that in the presence of strong oxidizing agents such as permanganate , aldehydes are oxidized. This oxidation is often accompanied by a colour change.
The colour change in the permanganate oxidation of benzaldehyde is caused by the inorganic permangate. The colour changes from purple to colourless because Mn^7+ is reduced to Mn^2+.
The benzaldehyde is readily oxidized to benzoic acid in the presence of permanganate.
When describing the electrons in an orbital, we use arrows pointing upward and downward to indicate what property?
(A.) electron configuration
(B.) electron orbitals
(C.) electron charge
(D.) electron spin
Answer:
D.) electron spin
Each sublevel is labeled by its principal energy level and sublevel. Electrons are indicated by arrows inside of the circles. An arrow pointing upwards indicates one spin direction, while a downward pointing arrow indicates the other direction
Why does Play-Doh taste salty?
Pls my science teacher wants an answer so pls answer ASAP i need an explaination
Answer:
It's made of salt
Explanation:
The recipe has salt as an ingredient
Answer:
playdoh is literally made of salt. thats why it tastes salty
Explanation:
Pure water has a pH of 7. Pure water
OA. is an acid
OB, is a base
OC, is a neutral substance
OD could be either an acid or a base
Answer: a neutral
Explanation: it’s an neutral because it’s all alone and there’s no chemicals
Which group on the periodic table is an atom with 5 valence electrons?
Answer: In the Nitrogen family
Explanation:
Other elements in the family are: phosphorus, arsenic, antimony, and bismuth.
Answer:
5A
Explanation:
what did mendel know of dna genes and alleles
Find the mass of 5 mol of NaOH.
(I need the answer in the next few minutes with work)
Answer:
199.985 or 200 g NaOH
Explanation:
Not sure if you want an explanation or not but take the 5 mol/ 1 mol NaOH and multiply by molar mass of NaOH which is 39.997/40.
what is the element (periodic table of elements) of an m&m
Answer:
Explanation:
There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons. Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements.
Solid iron(II) sulfide reacts with aqueous hydrochloric acid to produce aqueous iron(II) chloride and hydrogen sulfide gas . Write a balanced chemical equation for this reaction.
A balanced chemical equation for this reaction :
FeS(s)+2HCl(aq)→FeCl2(aq)+ H2S(g)
Further explanationGiven
Word equation
Required
Balanced equation
Solution
The chemical equation can be expressed in terms of:
word equation skeleton equation balanced equationSkeleton equation
FeS(s)+ HCl(aq) --> FeCl2 (aq) + H2S (g)
Balanced equation
FeS(s)+2HCl(aq)→FeCl2(aq)+ H2S(g)
Each sex cell has _______ the number of chromosomes as the original parent cell.
how is a compound different from mixtures
Answer: a compound is a substance that is made up of more than one type of atoms bonded together, mixtures are a mix of multiple elements or compounds which haven't bonded together.
Explanation:
is nuts and bolts an example of a element or a compound?
Answer:
In this activity, we will pretend that nuts, washers and bolts are 3 kinds of elements. A single washer represents an atom of WASHER. A single nut represents an atom of NUT and a single bolt represents an atom of BOLT. Atoms can be put together to form compounds.
Answer:
compound its that easy well i gotta go
How many moles are there in 3.45 moles of Carbon
Answer:
It would be 151.832775 because one mole is 44.0095*3.45 i hope this helps!
Explanation:
please help
find the impractical formula of the compound that contains 46.6 g of magnesium 61.4 g of sulfur and 92.0 g of oxygen. type subscripts for each element
Answer: The empirical formula is [tex]MgSO_3[/tex]
Explanation:
Mass of Mg= 46.6 g
Mass of S= 61.4 g
Mass of O = 92.0 g
Step 1 : convert given masses into moles.
Moles of Mg =[tex]\frac{\text{ given mass of Mg}}{\text{ molar mass of Mg}}= \frac{46.6g}{24g/mole}=1.942moles[/tex]
Moles of S =[tex]\frac{\text{ given mass of S}}{\text{ molar mass of S}}= \frac{61.4g}{32g/mole}=1.918moles[/tex]
Moles of O =[tex]\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{92.0g}{16g/mole}=5.75moles[/tex]
Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.
For Mg = [tex]\frac{1.942}{1.918}=[/tex]
For S= [tex]\frac{1.918}{1.918}=1[/tex]
For O =[tex]\frac{5.75}{1.918}=3[/tex]
The ratio of Mg: S: O = 1: 1: 3
Hence the empirical formula is [tex]MgSO_3[/tex]
How much orangutans is a healthy number? I’m studying about science can someone help it would be nice ty
Answer:
uhhhhh ik there are about 45,000 to 69,000 left in the wild, but a healthey number in one exhibit say, at a zoo or sum would be likeee 7 t0 8
Explanation:
if this wasnt what u were asking, srry lol, u werent specific
List the difference between 3 allotropes of carbon
Answer:
Diamond, graphite and fullerness
Explanation:
Diamond is clear and transparent but graphite is black and opaque
Does anyone know what the molar mass is
Answer:
the formula is M = m/n
Explanation:
M = m/n is the molar mass equals the mass of the substance divided by the number of moles of a substance
Answer:
100.93 g/mol
Explantion:
a pure substance could be either an element or a compound true or false?
Answer:
True
Explanation:
Both work because an element would be pure and compounds can be split into elements. This will work unless the substance isnt chemcially pure, but in this case it is so the answer would be true.
list six molecules in the reactions in the table & six ionic compounds in the reactions in the table above.
Explanation:
Ionic Compounds: These are compounds that contain ionic bonds. Generally, they are compounds that consists of a metal bonded to a nonmetal. Examples includes;
- CaO
- AgCl
- KCl
- CaI₂
- AgNO₃
- KClO₃
Molecules: They typically contain the covalent bonds. Generally, they are non metals bonded to each other.
Examples Includes;
- H₂
- C₂H₄
- N₂
- NH₃
- Cl₂
- I₂
Which amendment protects an accused person's right to remain silent?
O Second
O Eight
O Tenth
O Fifth
?
Answer:
Fifth trust me
Explanation:
What is the percent by mass of calcium in calcium carbonate,
CaCO3?
(Molar mass of CaCO3 = 100.09 g/mol)
%
What is the percent by mass of calcium in calcium carbonate, CaCO3? (Molar mass of CaCO3 = 100.09 g/mol)
Answer: 40.04 percent
The percent by mass of calcium in calcium carbonate ([tex]CaCO_{3}[/tex]) is approximately 40.04%.
To calculate the percent by mass of calcium in calcium carbonate ([tex]CaCO_{3}[/tex]), we need to determine the molar mass of calcium (Ca) and the molar mass of calcium carbonate ([tex]CaCO_{3}[/tex]), and then use the following formula:
Percent by mass of calcium = (Molar mass of calcium / Molar mass of calcium carbonate) x 100
Given:
Molar mass of [tex]CaCO_{3}[/tex] = 100.09 g/mol
Now, let's calculate the molar mass of calcium (Ca):
The molar mass of calcium (Ca) is 40.08 g/mol.
Plugging in the values into the formula, we get:
Percent by mass of calcium = (40.08 g/mol / 100.09 g/mol) x 100
= 0.4004 x 100
= 40.04%
Therefore, the percent by mass of calcium in calcium carbonate ([tex]CaCO_{3}[/tex]) is approximately 40.04%.
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Question 20 (2 points)
Much of the water that falls on the ground as precipitation
enters the ground through the process of infiltration
evaporates back into the atmosphere
becomes runoff and finds its way back to the ocean
forms small pools
Answer:
becomes runoff and finds its way back to the ocean
Explanation:
Precipitation refers to rainfall that reaches the earth.
Most of the rainfall that reaches the earth becomes runoff and finds its way back to the ocean.
When the rain falls on earth, some evaporates, some enters into the ground while some runs off into rivers and streams. Almost all of the rain water flows into the oceans or other bodies of water.
Hence, most of the rainfall that reaches the earth becomes runoff and finds its way back to the ocean
One mole of carbon contains 6.02 x 10^23 _ _ _ _ _ _ _ _ _ _ _ _ _ of carbon.
1 mole of carbon contains 6.02*(10^23) atoms of carbon
A patient needs to take 875mg twice daily The pills in the bottle are each 250mg How many pills does she wants to take 875mg
Answer:
[tex]3.5[/tex] pill need to taken for completing dosage of [tex]875[/tex] mg
Explanation:
Total dosage of medicine to be taken in a day
[tex]= 2 * 875 \\= 1750[/tex]mg
Total weight of one pill [tex]= 250[/tex] mg
Number of pills required is equal to total dosage of medicine divided by the weight of one pill.
Hence,
Number of pills
[tex]= \frac{875}{250} \\= \frac{175}{50} \\= \frac{35}{10} \\= 3.5[/tex]