Answer:
There are 2 hydrogen atoms, one magnesium atom, and 5 atoms in total.
Explanation:
We are given a compound in formula form. To make things easier to understand, we can first convert this to the name of the compound.
When a compound contains one or more elements in parentheses, these are usually a polyatomic ion. Polyatomic ions are ions made up of two or more elements with a positive or negative charge over the entire ion. Commons examples of these NH₄⁺ (ammonia) and HCO₃⁻ (bicarbonate). You can combine metals with polyatomic ions to create commonly known compounds, such as baking soda. The chemical name for baking soda is sodium bicarbonate, so we can combine Na (sodium) with HCO₃⁻ (bicarbonate) and create sodium bicarbonate: NaHCO₃.This compound is one magnesium atom bonded to two hydroxide ions.
Hydroxide is the compound between one hydrogen atom and one oxygen atom. The compound overall adopts a negative charge of 1.If we have one hydrogen atom and one oxygen atom, the most electronegative atom is written first in chemical formulas. Therefore, the symbol for Oxygen (O) goes first.Then, write in the hydrogen atom directly after the O symbol: OH.Finally, since we have a negative charge on the ion, we need to play a negative sign as a superscript for the compound. Therefore, this becomes OH⁻.Now, we need to determine the charge on the Magnesium atom which is determined from the amount of valence electrons the atom has.
On a periodic table, the symbol for Magnesium is Mg and this element has 2 valence electrons. In order to fulfill the Octet Rule, the It is more likely to give up 2 electrons to a nonmetal than it is to gain 6, so we can safely assume that the charge is ²⁺.We need to use the criss-cross technique to transfer the charges between the element and the ion, so the negative 1 charge goes to the Mg, which does not appear (negative 1 or positive 1 are implied) and since the magnesium has a charge of positive 2, this is the subscript for the hydroxide ion.Therefore, our compound becomes Mg(OH)₂, and we have labeled this as magnesium hydroxide.Now, to the number of atoms:
The new charge on Mg is 1-, so there is only one atom of Mg.The charge is 2+ on the OH ion, so there are two atoms of H and two atoms of O.Two atoms of oxygen, two atoms of hydrogen, and one atom of magnesium add up to be five atoms in total.
1. What is a chemical reaction
a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.
Answer:
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products
Explanation:
How many grams are in 657 L of N2 gas at STP?
Answer:
821.25gm
Explanation:
volume = 657
no of mole = 657/22.4
mass = no of mole * molecular mass
mass = 657/22.4*28
= 821.25gm
A doctor's order is 0.500 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How many milliliters of the suspension are required?
The volume of the suspension required : 10 ml
Further explanationGiven
0.500 g of ampicillin
The liquid suspension concentration = 250 mg/5 mL
Required
The volume of the suspension required
Solution
The concentration of a substance can be expressed in various units such as molarity, ppm, g / L etc.
Each unit change, we must pay attention to the conversion factor
Conversion g to mg
0.5 g = 500 mg
The volume of the suspension needed :
=mass x concentration
[tex]\tt \dfrac{500~mg}{250~mg/5~ml}=500~mg\times \dfrac{5~ml}{250~mg}\\\\=10~ml[/tex]
what does acetic mean
Answer:
Acetic
Explanation:
organic chemistry of, pertaining to, or producing vinegar
organic chemistry of or pertaining to acetic acid or its derivatives
Answer:
dym like vinegar or acetic acid
whose main job is to break down sugar to release energy that a plant cell can use?
Answer:
The Mitochondria
Explanation:
Mitochondria are membrane-bound cell organelles that generate most of the energy required to power the cell's organic chemistry reactions. Energy created by the mitochondria is kept in a tiny molecule known as adenosine triphosphate (ATP).
Need an answer asap plzzzzzzzzzzzzzzzzzzz!
What are the coefficients when the following equation is correctly balanced? _____ Al + _____O2 ---> _____Al2O3
Pls help, How is stoichiometry used to calculate amounts of substances in a chemical reaction?
Answer:
Thus, to calculate the stoichiometry by mass, the number of molecules required for each reactant is expressed in moles and multiplied by the molar mass of each to give the mass of each reactant per mole of reaction. The mass ratios can be calculated by dividing each by the total in the whole reaction.
Explanation: Stoichiometry is the field of chemistry that is concerned with the relative quantities of reactants and products in chemical reactions. For any balanced chemical reaction, whole numbers (coefficients) are used to show the quantities (generally in moles ) of both the reactants and products.
WILL GIVE BRAINIEST is C6H1005 + O2 → CO2 + H2O balanced?
Answer:
No! The balanced equation is given below:
C₆H₁₀O₅ + 6O₂ —> 6CO₂ + 5H₂O
Explanation:
C₆H₁₀O₅ + O₂ —> CO₂ + H₂O
The equation above is not balanced. It can be balance as illustrated below:
C₆H₁₀O₅ + O₂ —> CO₂ + H₂O
There are 6 atoms of C on the left side and 1 at the right side. It can be balance by 6 in front of CO₂ as illustrated below:
C₆H₁₀O₅ + O₂ —> 6CO₂ + H₂O
There are 10 atoms of H on the left side and 2 atoms on right side. It can be balance by 5 in front of H₂O as illustrated below:
C₆H₁₀O₅ + O₂ —> 6CO₂ + 5H₂O
There are a total of 7 atoms of O on the left side and a total of 17 atoms on the right side. It can be balance by 6 in front of O₂ as illustrated below:
C₆H₁₀O₅ + 6O₂ —> 6CO₂ + 5H₂O
Now, the equation is balanced.
What is the answer for number 2?
Answer:
It has mass but no charge.
Explanation:
The question asks to describe ONE of the subatomic particles that could be found at location X in the model, so you should think of protons and neutrons. Now all of the answers do NOT describe a proton, but the first answer describes a neutron. Neutrons have mass but no charge. Why? The neutron has two down quarks and one up quark, down quarks, have a charge of -1/3, and up quarks have a charge of +2/3. Doing the math, you'd see that (-1/3)2+2/3 is equal to a neutral charge. So a neutron WILL have a mass, but will NOT have a charge, as they are used to hold the nucleus together.
Answer:
the last one
Explanation:
What does a dam generating electricity from water flowing downhill show?
how systems take advantage of energy flowing from low to high
how systems take advantage of energy flowing from high to low
how systems violate the law of the second law of thermodynamics
Answer: the 3 one
Explanation: i just know
Answer:
how systems violate the law of the second law of thermodynamics
Explanation:
i had to take this quiz it is the right answer..
What is the conversion for 5 g + 3.3 mL =
Answer:
9 g/ml
Explanation:
5 + 3.3 = 8.5
But you should use sig figs.
5 has no tenths, hundredths, and etc.
Therefore the 8.5 rounds up to 9
So the answer is 9.
pls helpppp
Is the law of conservation of mass observed in each equation?
1. 2KClO3=2KCl+3O2
2. CaCO3+2HCl=CaCl2+H2O+CO2
Answer:
its c my guy
Explanation:
When 3243. grams of iron (III) chloride are reacted with 511.8 grams of hydrosulfuric acid, which is the limiting reactant?
2 FeCl3 + 3 H2S -----> Fe2S3 + 6 HCl
Answer:
Hydrosulfuric acid will act as limiting reactant.
Explanation:
Given data:
Mass of iron(III) chloride = 3243.0 g
Mass of hydrosulfuric acid = 511.8 g
Limiting reactant = ?
Solution:
Chemical equation:
2FeCl₃ + 3H₂S → Fe₂S₃ + 6HCl
Number of moles of iron(III) chloride:
Number of moles = mass/molar mass
Number of moles = 3243.0 g/ 162.2 g/mol
Number of moles = 20 mol
Number of moles of hydrosulfuric acid:
Number of moles = mass/molar mass
Number of moles = 511.8 g/ 34.1 g/mol
Number of moles = 15 mol
Now we will compare the moles of both reactant with products
FeCl₃ : Fe₂S₃
2 : 1
20 : 1/2 ×20 = 10
FeCl₃ : HCl
2 : 6
20 : 6/2 ×20 = 60
H₂S : Fe₂S₃
3 : 1
15 : 1/3 ×15 = 5
H₂S : HCl
3 : 6
15 : 6/3 ×15 = 30
Hydrosulfuric acid producing less number of moles of product thus, it will act as limiting reactant.
57.6 75 is rounded off to give answer in 4 significant figures as
Answer:
57.68
Explanation:
Last digit is 5 so we round of 7 to 8
HELPPP NOW PLSSS IM GIVING 22 POINTS TO WHOEVER ANSWERS
Which is the control center for the endocrine system?
the thymus
the hypothalamus
the pancreas
the thyroid
Answer:
The hypothalams
Explanation:
It is the part of the brain that controls the endocrine system.
HOPE THIS HELPED
The hypothalams ~~~~~~
when you burn wood in a campfire, ____ energy is converted to ____ and light energy.
Answer:
when you burn wood in a campfire, chemical energy is converted to heat and light energy.
Explanation :
When wood is burned stored potential energy ( in the form of chemical energy ) in the log is released due to heating by other excited atoms . This process is called combustion and requires presence of oxygen. So, combustion can be defined as a process which changes chemical energy into kinetic energy in the form of heat. In case of combustion an organic say wood in this case combines with oxygen present in the atmosphere to give off carbon dioxide, water and energy in the form of heat and light .
A ball, starting from rest at Position 1, rolls down and then up a curved track towards Position 5. When it reaches Position 5, it rolls back down the track
2
Which description below is most consistent with what you can expect from the ball's motion?
The ball will roll as high as Position 1 since energy cannot be created or destroyed.
The ball will roll past Position 1 since energy cannot be created or destroyed.
The ball will roll as high as Position 2 since some of the energy will be transformed to heat,
The ball will roll as high as Position 3 since that position has the least potential energy.
Kk
Answer:
D. The ball will roll as high as Position 3 since that position has the least potential energy.
Explanation:
i am not sure that it's is right or wrong
what is the anwser to this question
Answer:
N/A
Explanation:
"what is the anwser to this question" Is Not Available because this no question.
Please like this.
For many plants, carbon dioxide is a limiting factor.
What happens when more carbon dioxide is available to plants?
1.Plant growth increases.
2.Plant growth stays the same.
3.Plant growth decreases.
4.Plant growth may increase or decrease.
Answer:
1
Explanation:
plants use carbon dioxide and if there is more then that mean the plants will have more to use and will grow faster and populate more
Are assorted jelly beans heterogeneous or homogeneous
Heterogeneous, which means that they are not evenly combined.
Where did you walk? what did you find most enjoyable while walking: listening to music, listening to an audio book, or nothing? how did your body react to this introductory amount of exercise? was it more exercise or less exercise than you are used to? if you did not walk, what other type of physical movement did you do?
Answer: walked from school few blocks before arriving .found charting and laughing with my pals most enjoyable while I was walking .my body reacted by tiredness, it is less exercise than I am capable of doing.
Explanation: did that help?
In which type of reaction is ATP the driving force?
O
A. anabolism only
o
B. catabolism only
O
C. both anabolism and catabolism
D. neither anabolism nor catabolism
HELP PLEASE!!
How many atoms of carbon (C) are in C6H1206?
Please give 1 answer.
A.
12
B.
3
C.
24
D.
6
What are compounds?
A. Pure substance
B.homogeneous mixtures
C.heterogeneous mixtures
ASAP PLZ HELP WIL GIVE BRAINLYS
Answer:
A compound is a material formed by chemically bonding two or more chemical elements.
Explanation:
Which of the following correctly lists the levels of organization from most complex to least complex? *
Community, Organism, Population, Ecosystem
Ecosystem, Community, Population, Organism
Population, Community, Ecosystem, Organism
Organism, Population, Community, Ecosystem
Answer:
The last option.
Explanation:
You can immediately eliminate the other options as an organism is clearly the least complex. Only one option begins w/ 'organism'.
Answer:
Its def A, if this helped subscribe to amiredagoat Yt
Explanation:
Explain how a heater warms the air in a room, including the words density, volume, and temperature in your explanation
Answer:
Explanation:
Convection currents are created when the air above your radiator heats and then cools and is then heated again. This process happens continuously whilst you have your heating on and the current moves the heat around the room making it nice and warm and toasty.
Explaining Radioactive Decay
Explain the process of radioactive decay. What happens during radioactive decay, and what is the result at the end of radioactive decay?
Answer:
Radioactive decay is the process in which the nucleus of an unstable isotope spontaneously changes, releasing particles and energy. An unstable isotope will continue to decay until it reaches the stable form of either a different isotope of the same element that is stable or a different element that is stable.
Explanation:
Answer:
Sample Response: Radioactive decay is the process in which the nucleus of an unstable isotope spontaneously changes, releasing particles and energy. An unstable isotope will continue to decay until it reaches the stable form of either a different isotope of the same element that is stable or a different element that is stable.
If you want to make your own make sure to include.
- Radioactive decay is the process in which the nucleus of an unstable isotope spontaneously changes, releasing particles and energy.
- An unstable isotope will continue to decay until it reaches a stable form.
- The stable form could be a different isotope of the same element that is stable or a different element that is stable.
Explanation:
Edge 2021
# of protons = 48
Cadmium
Titanium
Oxygen
Krypton
Answer:
Cadmium +p= 48
Titanium p=22
Oxygen p=8
Krypton p=36
So the answer is Cadmium which has #48 protons
Explanation:
which substance will experience the greatest temperature change if 100J of energy is used to warm it? 100g of moist air, 100g of water or 100g of ice