Answer: yo sorry this a hard one
Explanation:
bro
i need help please asap
Answer:
Bonding in chemistry is known as chemical bonding which means the interaction or attraction between molecules.
Chemical bonds are of different type such as ionic, covalent, hydrogen, and metallic. Ionic bonds are formed by the transfer of valence electron from one atom to other and there is unequal distribution of electrons between two or more atoms. Ionic bonds forms two oppositely charges ions positively charged (loses electron) or negatively charged (gains electron).
Covalent bond are the strong chemical bonds that form due to equal sharing of electron pairs between atoms. They form a stable element and have stable attraction or repulsive forces.
According to the rate law, how do concentrations affect rate?
O A. The rate increases as concentrations decrease.
OB. The rate is independent of concentrations.
O C. It is impossible to tell how the rate is affected.
O D. The rate increases as concentrations increase.
Answer:
Explanation:
d
WHOEVER ANSWERS A GOOD ANSWER I WILL GIVE BRAINLIEST!
What would happen to the rate of evaporation if you moved all the containers outdoors into direct sunlight?
Answer:
Molecules contained in a liquid evaporate from the surface area. This means that the larger the surface area, the faster the rate of evaporation. ... This means all the other factors that affect the rate of evaporation are identical. Leave the containers for one hour.
Explanation:
Answer:
Evaporation would accelerate.
Explanation:
Direct sunlight increases the thermal energy on the containers, increasing evaporation.
What are the coefficients of the balanced reaction? _CH4 + _CI2 ➡ _CCI4 + _HCI
Answer:
CH4 + 4Cl2 --> CCl4 + 4HCl
Explanation: Message me if you need a thorough explanation
Brainliest and more points if you do all 3
If we know the specific heat of a material, can we determine how much heat is released under a given set of circumstances?
Answer:
Yes
Explanation:
literally have no idea i just got it right on ck-12 lol
Yes, we determine how much heat "Q" is released under a given set of circumstances if we know the specific heat "c" of the material
The specific heat capacity "c" of a material is the amount of heat required to raise the temperature of a unit substance by 1kg. Mathematically, it is expressed as:
[tex]c=\frac{m}{Q\triangle \theta}[/tex] where:
m is the mass of the object
Q is the amount of heat absorbed or released by the object
Hence from the formula that we determine how much heat "Q" is released under a given set of circumstances if we know the specific heat "c" of the material
Learn more here: https://brainly.com/question/22991121
What is an ion atom?
1. How many carbon atoms react in this equation?
2C4H10 + 1302 = 8C02 + 10H2O
A. 2
B. 4
C. 6
D. 8
ns
im not so sure but I think the answer is 8. Sorry if im wrong
I need help with this question ASAP this should have 2 answers
Answer:
The correct answer is B. and C. according to me!
Answer:
A. and C.
no explanation...
please help which one is it
Answer:
answer is 0.5
Explanation:
H= 2X l =2
0=16 xl = 16
So 16+2=18
lmol of H2O → 18g
xmol of H2O →9g
:. 9÷ 18=0.5
x= 0.5
aluminum reacts with 42g of iron(ii) sulfate. How many grams of iron are formed?
Answer:
15.44 gm
Explanation:
Hope it is helpful....
What happens when Na forms an ionic bond?
O it gains one electron and becomes a -1 anion
it loses one electron and becomes a +1 cation
It loses 2 electrons and becomes a + 2 cation
It shares electrons with the other atom in the bond
Look at picture
ASAP please will mark as brainlist don’t got much time
Answer:
in this also 1st option is correct because na is also a metal and metal gains electron...
Is this a balanced equation? 4NH3+ 5O2 – 4NO + 5H20
Answer:
The reaction is not balanced.
Explanation:
The reaction expression is given as:
4NH₃ + 5O₂ → 4NO + 5H₂O
In a balanced reaction equation, the number of atoms on both sides of the expression is the same.
Now let us investigate;
Elements N H O
Reactants 4 12 10
Products 4 10 9
We see that the number of H and O on both sides of the expression is not the same. The reaction is not balanced.
Which substance contains only one kind of atom?
O A. aluminum
B. ethanol
O C. salt
D. water
Answer:
A
Explanation:
Because ethanol consists C H and O formula C2H5OH
Formula of salt is NaCl
Formula of water is H2O
But fórmula of Aluminum is just Al
1
The process of a solid turning into a liquid is called
Answer:
Melting
Explanation:
Once heat is added it will turn to a liquid
Melting is the process of turning solid to liquid.
Explain how you would determine the amount of g in 1.7 mol of Al(OH)2 and give your answer.
Answer:
103.7 grams
Explanation:
[tex]Al(OH)_{2}[/tex]
Al: 1 * 26.98 = 26.98
O: 2 * 16.00 = 32.00
H: 2 * 1.01 = 2.02
26.98 + 32.00 + 2.02 = 61.00
[tex]\frac{1.7mol}{1}[/tex] * [tex]\frac{61.00g}{1mol}[/tex] = 103.7 grams of [tex]Al(OH)_{2}[/tex]
plz help me I swear to God i will mark you brainiest
Which statement is completely accurate?
Atoms of the same element can have different numbers of neutrons.
Atoms of the same element can have neutrons but exist without protons.
Atoms of the same element always have different numbers of neutrons.
Atoms of the same element always have different atomic weights.
Answer:The same chemical element can have a different number of neutrons and still be the same element. We refer to the atoms of the same element with different numbers of neutrons as "isotopes"
Explanation:
How can you find the number of protons from the nuclide symbol?
It is the difference in the mass number and atomic number.
It is half the number in the upper left (half the mass number).
It is the number in the lower left (atomic number).
It is the number in the upper left (atomic number).
It is the number in the upper left (mass number).
Answer: It is the number in the upper left (atomic number).
Explanation: The atomic number is normally the number of protons. I hope this helps.
dedin acid it bubbles and gives off a vas.
What is the name of this gas?
b
Explain how you would test for this gan
Answer:
hydrogen
Explanation:
it is normaly found in acid
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Explanation:
ssbabnsbsjsjsjah
How many days is 1.6 x 10^7 minutes?
[tex](1.6 \times {10}^{7}) \: min \times \frac{1 \: hour}{60 \: min} \times \frac{1 \: day}{24 \: hour}[/tex]
[tex] = 11111.11111 \: days[/tex]
(round as you wish)
Write the word and balanced chemical equations for the reaction between:
Potassium hydroxide + hydrochloric acid
Answer:
Potassium hydroxide + Hydrochloric acid → Potassium chloride + Water.
potassium hydroxide + hydrochloric acid = neutralisation
I need help!
It’s question 2!
Answer:
A
Explanation:
Tectonic plates beneath the Earth's surface and crust are always shifting. Earthquakes occur when two plates shift or slip and cause a rupture which then starts an earthquake.
How is carbon dioxide released by animals? *
O during inhalation
O during exhalation
O during urination
O during eating
Answer:
Exhaled
Explanation:
Answer:
Exhale
Explanation:
Just like humans
A 328-g sample of water absorbs 5.78 × 103 J of heat. Calculate the change in temperature for the water. If the water is initially at 25.0 °C, what is its final temperature?
Answer:
The change in temperature for the water is 4.21 C and its final temperature is 29.21 C
Explanation:
Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.
There is a direct proportional relationship between heat and temperature. The constant of proportionality depends on the substance that constitutes the body as on its mass, and is the product of the specific heat by the mass of the body. So, the equation that allows calculating heat exchanges is:
Q = c * m * ΔT
where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.
In this case, you know:
Q= 5.78*10³ J c= 4.186 [tex]\frac{J}{g*C}[/tex] m= 328 g ΔT= Tfinal-TinitialReplacing:
5.78*10³ J= 4.186 [tex]\frac{J}{g*C}[/tex] *328 g* ΔT
Solving:
ΔT= [tex]\frac{5.78*10^{3} J }{4.186\frac{J}{g*C}*328 g}[/tex]
ΔT= 4.21 C
Being ΔT= Tfinal - Tinitial and Tinitial=25 C, then:
4.21 C= Tfinal - 25 C
4.21 C + 25 C= Tfinal
29.21 C= Tfinal
The change in temperature for the water is 4.21 C and its final temperature is 29.21 C
Which salt is the most soluble in water at 50⁰c
Answer:
Table salt, or sodium chloride (NaCl), the most common ionic compound, is soluble in water (360 g/L)
If 220 grams of C3H8 react with 20 grams of O2, how much CO2 can be formed?
Answer:
Explanation:
Identify the element:
1. 1s22s22p63s1
2. [Kr] 5s24d105p
Answer:
1. Sodium, Na
2. You left out the last number of the problem, so I will give you all six possibilities for the last 5p orbital:
5p1: Indium, In
5p2: Tin, Sn
5p3: Antimony, Sb
5p4: Tellurium, Te
5p5: Iodine, I
5p6: Xenon, Xe
which two types of rock could form after other rock melts into liquid magma
a. sedimentary
b. metamorphic
c. extrusive igneous
d. intrusive igneous
Answer:
a, b
Explanation:
look at rock cycle charts, I knew this since 2nd grade
Answer:
its c and d
Explanation:
I took the test got 100%
please help which one is it
Answer:
17 g
Explanation: