Answers
Answer:
C.)
Explanation:
I also saw this question on Brainly! Hope this helps!
Related Questions
PLEASE HELP! ILL GIVE BRAINLIEST, EXPLAIN YOUR ANSWER PLS
Answers
Answer:
arteries carry blood from the heart to the lungs and veins carry blood from the lungs to the heart
Explanation:
Arteries carry oxygenated blood from the heart, while veins carry oxygen-depleted blood back to the heart. ... The pulmonary veins transport oxygenated blood back to the heart from the lungs, while the pulmonary arteries move deoxygenated blood from the heart to the lungs.)
13.) Write one paragraph minimum of 6 sentences addressing your concerns or lack of concern about DHMO.
Answers
Answer:
I am not sure
Explanation:
ΔABC ~ ΔEFD
Which of the following would exert a gravitational force? (check all that apply) *
A. Sun
B. Earth
C. Moon
D. You
E. a marble
F. light
G. air
H. water
Answers
Answer: B. C and A.
Explanation:
1.25mole Nocl was placed in a2.50l reaction chamber at 427c. After equilibrium was reached .1.10moles of Nocl remained.Calculate the equilibrium constant Kc for the reaction. 2Nocl(g)=2No(g)+cl2(g)
Answers
Answer:
Kc → 5.58×10⁻⁴
Explanation:
Equilibrium reaction is:
2NOCl (g) ⇄ 2NO (g) + Cl₂(g)
Initially we have 1.25 moles of NOCl
After the equilibrium, we have 1.10 moles. So, during the process:
(1.25 mol - 1.1 mol) = 0.15 moles have reacted.
As ratio are 2:2, and 2:1, 0.15 moles of NO and (0.15 /2) = 0.075 moles of chlorine, were produced in the equilibrium.
Finally in equilibrium we have: 1.10 moles of NOCl, 0.15 moles of NO and 0.075 moles of Cl₂. But these amount are not molar, so we need molar concentration in order to determine Kc:
1.10 mol /2.50L = 0.44 M
0.15 mol / /2.50L = 0.06 M
0.075 mol /2.50L = 0.03 M
Let's make expression for Kc → [Cl₂] . [NO]² / [NOCl]²
Kc = (0.03 . 0.06²) / 0.44² → 5.58×10⁻⁴
write formulas and names for two binary ionic compounds
Answers
Li2O-calcium bromide
Describe what happens when two bodies of matter at different temperatures are brought together.
Answers
Answer:
maybe they will be the same temperature
Explanation:
Answer: The effect of this transfer of energy usually, but not always, is an increase in the temperature of the colder body and a decrease in the temperature of the hotter body.
Explanation:
What are the three energy's .
Answers
Answer:
Energy and how it can change forms. Kinetic, potential, and chemical energy.
how does friction affect how tractors move in mud
Answers
Advertisements for tobacco and alcohol products work because they "tell the truth."
True
False
Answers
What is the main purpose of the nervous system?
A:exchanges gases between the body and the environment
B: gathers information from the environment and body and coordinates actions
C: regulates the body using hormones
D: provides shape and structure for the body
Answers
Answer:
B
Explanation:
the nervous system (nerves) is the brains communication to the body
Which compound is impossible?
A. Zns
B. Na2O
C. Ca3P2
D.LiCl2
Answers
Explanation:
For the reaction H2 + O2→ H2O, how many grams of water are produced from 6.00 mol of hydrogen?
Answers
Answer:
108 g
Explanation:
2H₂ + O₂ ⇒ 2H₂O
1) n(H₂) : n(H₂O) = 2 : 2
Hence, n(H₂O) = n(H₂) = 6,00 mol
2) m(H₂O) = n × M = 6,00 mol × (2 + 16) g/mol = 6,00 × 18 mol = 108 g
I NEED THIS ASAPP PLEASEE
Answers
Answer:
Exothermic
Explanation:
The equation of the reaction is given as;
H₂O(vapour) --> H₂O(liquid)
The equation above represents a condensation process. Water vapour condenses to liquid.
Condensation involves loss of energy as heat. The equation can be modifies as;
H₂O(vapour) --> H₂O(liquid) + Heat
Due to the loss of heat, condensation is regarded mas an exotheric process.
Rank the following 3rd period atoms in order of increasing force of attraction on its respective electrons.
Sodium, silicon, magnesium, sulfur, argon
A. argon, sulfur, silicon, magnesium, sodium
B. sodium, magnesium, silicon, sulfur, argon
C. sulfur, silicon, argon, sodium, magnesium
D. argon, silicon, magnesium, sulfur, sodium
Answers
Answer:
B
that's all HAHA why do it have to be 20 characters to answerrr
Which of these equations is balanced, and which is not balanced? Explain how you can tell.
a) 2C2H6+ 7O2 → 4CO2+ 6H2O
b) 2MgCO3 + H2SO4 → 2MgSO4 + H2O + 2CO2
Answers
Answer:
a is balanced
Explanation:
a) reactant/ product
(2x2)=4c / 4c
(2x6)=12h / 12 h
14o / (8o+6o)=14 o
PLS HELP DECOD THIS :(
The planet Superman was born on (also has the atomic number 36): (F3) R (C3) P (H1) (I1) N
Answers
Answer:
he was born on planet krypton
Complete the following reaction :
HC≡CH + HBr→?
Answers
hope it helps you .............
(a) Describe how a simple molecular structure differs from a giant molecular structure.
Answers
Answer:
Giant structures are usually arranged in to giant regular lattices and they are extremely strong because they have many bonds involved. Simple molecules are just normal molecules as the name suggests like CO². though it contains strong covalent bond it still has weak intermolecular forces
Explanation: when your account gets to deleted and your trying to get your points up lol
Calculate the number of moles in 2.67 g of carbon trihydride
Answers
Answer:0.178 moles
Explanation: carbon trihydride seems to be an unusual name for the methyl group CH3–
ionic wt 15
moles = 2.67/15 = 0.178
PLEASE HELP WILL GIVE BRAINLIEST
2 eggs cook in a frying pan, which is sitting over a gas burner.
Is thermal energy being transferred by radiation in this image? Why or why not?
Answers
Answer:
No, thermal energy is not being transferred by radiation. The eggs are in direct contact with the metal pan, which is in direct contact with the gas flame, so this is conduction, not radiation. Radiation transfers thermal energy by electromagnetic waves, not by direct contact.
Answer:
no
Explanation:
a metal pan is cooking the eggs because the flame is touching the pan and the molecules are colliding with each other
Describe how an electric field is generated.
Answers
Answer:
Electric charges produce electric fields
Explanation:
how many molecules are in 4K2CO3
Answers
Answer: 5 molecules
Explanation:
2 molecules of K and 3 molecules of O
By counting the number of crests that pass by a given point in a set amount of time, what you would be calculating?
Answers
Answer:
Frequency
Explanation:
When we talk about crests, we are referring to the high points of a wave.
We measure wave frequency by counting out the the number of crests (or high points) of a given wave that pass by a given point in a set amount of time. Thus, the higher the number of crests, the greater the frequency of the wave and vice versa.
We define the frequency of a wave as the number of waves that passes by a fixed point within a given period of time.
What are some of the positive and
negative effects of the use of plastics?
Answers
Answer:
Positive: Save fuel and reduces greenhouse gas
Negative: Harmful to human and animal health ( underwater animals), Hurts the food chain
Explanation:
I got it from a video. Hopefully it helps you.
Lead will float in water.
Answers
Actually, no. While their mass may be the same (1kg), the volume of lead is a lot smaller than that of feathers. As there is the same mass stuffed in a smaller space, it must be denser. The density of water is 1 g/cm3, so if the density of the lead is more than 1g/cm3, it has to sink
ammonia gas cannot be collected in an erect gas jar?why?
Answers
Answer:
ammonia being lighter than air, is collected by downward displacement of air in an inverted gasjar
The gas jar is used to collect ammonia gas. This gas can be barely dissolved in water. As a result, the downward displacement of water does not gather it in the jar.
What is ammonia ?With the formula NH3, ammonia is a nitrogen and hydrogen inorganic chemical. Ammonia, the simplest pnictogen hydride and a stable binary hydride, is a colorless gas with a strong, pungent odor.
Because it is simpler to install inlets and outlets in one end of an erect gas jar than it is to install them on the side or the bottom, which are required for placement on a stable surface.
Ammonia is prepared in a laboratory by forcing air downward to collect the gas. Due to the high solubility of ammonia in water, it is impossible to collect ammonia gas over water.
Thus, The gas jar is used to collect ammonia gas.
To learn more about ammonia, follow the link;
https://brainly.com/question/15409518
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Which of the following are properties of the oxides of non-
metals?
property 1
property 2
A
acidic
covalent
B.
acidic
ionic
С
basic
covalent
D
basic
ionic
(a)
(b)
(d)
Answers
Answer:
it is option A hope it helps
The properties of nonmetallic oxides include acidity and covalent character. Hence, option A is correct.
What are non-metals?Non - metals are elements in the rightmost side of the periodic table. Non -metals are mostly gases and some of them include, metalloids also. Non-metals are commonly electron -deficient and some of them are highly electronegative.
A compound shows covalent character, if the electrons are shared between the constituent atoms. Covalency increases from left to right in periodic table.
As the covalent character increases, acidity increases. Oxides of non-metals are electrophiles and acts as Lewis acids. They are all covalent compounds. Therefore, option A is correct.
Find more on covalent bonding:
https://brainly.com/question/19382448
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7
When one kind of cell changes to a specialized cell, this is an example of ... (S
Answers
Answer:
Cellular differentiation
Explanation:
Answer:
cellular differentiation
Explanation:
Two oxides, X and Y, are added separately to dilute sulfuric acid and Giste sesiun toycrolide,
X reacts with dilute sulfuric acid but y does not react,
Y reacts with aqueous sodium hydroxide butx does not reach.
Which type of oxide are X and Y?
Answers
Answer:
x basic and y acidic
Explanation:
hope it helps
Anybody good at chemistry that is willing to help?? If you could that'd be greatly appreciated!
(25 PTS)
Answers
Answer:
The least similar to a real gas found in the environment would be B.
Explanation:
Standard Ambient Temperature/Pressure (SATP) is at 298.15K and 101.3kPa. It describes standard conditions and is often used for measuring gas density and volume using the Ideal Gas Law. The values least similar to theses ones would be the least similar in the gases in the environment.