Answer: my answer would be B
Explanation: if you look at the graph and see the distance and time, you can match it to one of the answers. Hope this helps
Hallo PLEASE HALP WILL MARK THE BEST OR WHATEVER ITS CALLED (btw meh teacher made it)
Answer:
Umm your pet has blood cells, and plants also too!
Explanation:
Answer:
shoot a lamp and a wall?
Explanation:
I rlly dont know
help please! :)
Why are prefixes not needed in naming ionic compounds?
A. lon charges are written as superscripts with the names of the
atoms.
B. Roman numerals are used instead of prefixes to indicate number.
C. Subscripts are used in the name to indicate number of atoms.
D. Ions combine in only one ratio.
Answer:
Ions combine into only one ratio
Explanation:
Just took test
Prefixes are not used to indicate the number of atoms when writing the chemical formula. The number of atoms are written as subscripts to their chemical symbols.
What is chemical formula?Chemical formula of a compound is used to identify a compound and distinguishes it from other compounds. A chemical formula is written from the chemical symbols of elements which constitute the compound.
The number of atoms of each element is written as the subscripts of the symbols for each atoms. For example,magnesium chloride contains one magnesium and two chlorine atoms thus, its formula is MgCl₂.
The subscripts for each atom in the formula of an ionic compound is the charge of the other atom into which it is bonded. Similarly, the formula of iron oxide containing 2 Fe and 3 O is written as Fe₂O₃.
To find more on chemical formula, refer here:
https://brainly.com/question/29031056
#SPJ6
9. Calculate the frequency of light with a wavelength = 12 km. (kilo = 10')
Heat transfer between two substances is affected by specific heat and the chemical composition of the substances. state of matter of the substances at room temperature. thermal equilibrium of the substances. amount of time and area of physical contact between the substances.
Answer:
the answer is D
Explanation:
Answer:
D. Amount of time and area of physical contact between the substances
Explanation:
This is because with a greater surface area and more physical contact heat transfer can be transferred more quickly
When a forest burns and all that's left is some ash,
where did most of the mass of the trees go? List the 2 molecules produced. What is the equation for combustion, starting with sugar and oxygen.
Answer:
C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + H₂O
Explanation:
When a forest burns and all that's left is some ash, most of the mass of the trees go to the atmosphere, in the form of carbon dioxide.
In a total combustion process of organic matter, the two molecules produced are carbon dioxide and water. (CO₂ and H₂O)
The equation for the combustion of glucose is:
C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + H₂O
Answer: i think C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + H₂O
Explanation:
Please help asap !! it is due at 11:59 tonight
Answer:
boogers
sexExplanation:
love
What force pulls electrons and protons together?
a. weak nuclear force
b. gravity
c. electrostatic force
d. friction
please help asap!!!!!!!!!!! How many molecules are present in 0.5 moles of NaOH?
Explanation:
oh shi sorry I wish I could help but I'm stupid
Otto and Olivia each have six markers. Otto is missing the purple and green markers, and
Olivia is missing the black and brown markers. What can they do so that each has a full set?
Answer:
Otto and Olivia should just buy more markers
How many moles are in 23 g of LICI
Answer:
42.394
Explanation:
trust me lol
Which of the following has the largest radius?
Answer:K
Answer:
the answer is k? lol thanks
Answer:
K
Explanation:
It is K
=========
Not K+ nor the other options, it is K
Which of the following is not a characteristic of a solution?What is the concentration of a solution?
Answer: B. it will scatter a beam of light
Explanation: hope it is helpful........
what did Rutherford's gold foil experiment tell about the atom?
The alpha particles that were fired at the gold foil were positively charged. ... These experiments led Rutherford to describe the atom as containing mostly empty space, with a very small, dense, positively charged nucleus at the center, which contained most of the mass of the atom, with the electrons orbiting the nucleus.
hope this helped
5. What are Opioids?
(5 Points)
O Prescribed medicine for Pain
O Prescribed medicine for depression.
O Prescribed medicine for sleeping
O Prescribed medicine for a cold
In this reaction, how many moles of propane (C3Hg) would react with 15
moles of Oz?
C3Hg + 502 - 4H20 + 3C02
A. 4
B. 15
C. 3
D. 9
Answer:
3
Explanation:
GUYS I NEED HELP THIS IS DUE TONIGHT !!!
Show all of your work on how to balance the following reactions. It would be best to write the answers on paper and then upload the document on to Canvas.
Balance the following reaction. Show all steps and all work (4pts)
____Li + ____Br2 → ____ LiBr
Balance the following reaction. Show all steps and all work (4pts)
____P + ____Cl2 → ____PCl3
Balance the following reaction. Show all steps and all work (4pts)
____H2 + ____SO2 → ____H2S + ____H2O
Explanation:
To balance the reactions given, we must understand that the principle to follow is the law of conservation of matter.
Based on this premise, the number of moles of species on the reactant and product side must be the same;
Li + Br₂ → LiBr
Put a,b and c as the coefficient of each species
aLi + bBr₂ → cLiBr
balancing Li;
a = c
balancing Br;
2b = c
let a = 1;
c = 1
b = [tex]\frac{1}{2}[/tex]
or a = 2, b = 1 , c = 2
2Li + Br₂ → 2LiBr
P + Cl₂ → PCl₃
Using the same method;
aP + bCl₂ → cPCl₃
balancing P;
a = c
balancing Cl;
2b = 3c
let a = 1;
c = 1
b = [tex]\frac{3}{2}[/tex]
or
a = 2, b = 3, c = 2
2P + 3Cl₂ → 2PCl₃
iii,
H₂ + SO₂ → H₂S + H₂O
use coefficients a,b,c and d;
aH₂ + bSO₂ → cH₂S + dH₂O
balancing H;
2a = 2c + 2d
balancing S;
b = c
balancing O
2b = d
let b = 1,
c = 1
d = 2
a = 3
3H₂ + SO₂ → H₂S + 2H₂O
Q 1. Element M is a metal that forms compounds of the type MX2, MX3, and MX4, where X is a Chlorine (Cl).
I) What is the expected trend in the ionic radius of M in these compounds?
II) Arrange these compounds in order of decreasing ionic radius of M.
Do not respond if u don’t know the answer. I’ll report it and u will get a warning.
Answer:
See explanation
Explanation:
The ionic radius of metal M decreases as the charge on the metal M increases. The ionic radius is generally defined as the distance between the nucleus and the outermost electron of the ion. Hence, ionic radius becomes much lesser as the magnitude of the positive charge increases.
It is obvious from the various formulae of metal chlorides in the question that the metal forms cations M^2+, M^3+ and M^4+ respectively. The order of decreasing ionic radius of the compounds is;
MX2 > MX3 > MX4
How do I find the Electrons of a substance? For example, there's like 10 protons & neutrons, how would I find the electrons? Please help ASAP!
Answer:the number of electrons is equal to the number of protons in a neutral atom that is. In a cation or anion atom you either gain or lose electrons. Let’s say it’s a cation +3 you lose 3 electrons. Now let’s say it’s an Anion -3 you gain 3 electrons. Hope this helps.
Explanation:
Scientists have discovered a new virus that is very different from any known viruses. What type of matter is the virus most likely made of?
Combination of protons of some atoms that have not been discovered so far
Combination of protons of different atoms that exist in the periodic table
Compounds made from elements that are not in the periodic table
Compounds made by bonding of atoms of known elements
Answer:
Compounds made by bonding of atoms of known elements
Explanation:
Your answer is D. ^^
.............
4. This neurotransmitter is a part of the brain's "reward system"
(5 Points)
Nicotine
Dopamine
Addiction
Nerves
Answer:
Dopamine
Explanation:
The regions of the brain comprising the “reward system” use the neurotransmitter dopamine to communicate.
Describe what happens at faults along a subduction zone.
Answer:
bends and slides under one another
Explanation:
"Where two tectonic plates meet at a subduction zone, one bends and slides underneath the other, curving down into the mantle."
Answer:
Where two tectonic plates meet at a subduction zone, one bends and slides underneath the other, curving down into the mantle. (The mantle is the hotter layer under the crust.) Tectonic plates can transport both continental crust and oceanic crust, or they may be made of only one kind of crust.
Given the balanced equation:
AgNO3(aq) + NaCl(aq) → NaNO3(aq) + AgCl(s)
This reaction is classified as
Answer:
ahhh....Double displacement reaction or precipitation reaction.(both are correct im not guessing)
Calculate the amount of potential energy a 200 kg car has on top of a 15 m hill
Explanation:
Is this gravitational potential energy?
T or F. Most nonmetals are poor conductors of heat.
Plz answer correctly.
Answer:
True
Explanation:
d = 24 g/mL V = 1.2 mL M = ?
Answer:
m=28.8g
Explanation:
m=dv
m=24*1.2
m=28.8g
What 2 pieces of equipment will you use to separate the salt from the water?
Separate Salt and Water Using Distillation
If you want to collect the water, you can use distillation. This works because salt has a much higher boiling point than water. One way to separate salt and water at home is to boil the salt water in a pot with a lid.
hope this helps!!
Describe how you could use a motor in
reverse to generate electricity.
Answer: stepper mother is good for that
Explanation:
Answer ASAP
30 points!!
Why do elements and compounds qualify as pure substances?
Elements are made of only one kind of atom. The molecule is made up of two or more kinds of atoms. There is no physical change that can separate the compounds into more than one kind of substance. This makes a compound a pure substance.
Answer:
Elements are made of only one kind of atom. ... The molecule is made up of two or more kinds of atoms. There is no physical change that can separate the compounds into more than one kind of substance. This makes a compound a pure substance.
Explanation:
What are two natural and two man-made causes for sudden catastrophic change to an ecosystem
Answer:
Some changes that can occur in ecosystems are seasons, tide cycles, population sizes, succession, evolution, landscape changes, and climate changes.
Explanation:
is friction better on a hard or smooth surface?
Answer:
Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.
Explanation:
Answer:
Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them.
Explanation: