Answer:
Diamond, graphite and fullerness
Explanation:
Diamond is clear and transparent but graphite is black and opaque
1. What are commonly called as "shooting stars"?
A. asteroids
B. comets
C. meteors
D. meteorites
2. What are found in the circular or somewhat like "doughnut-shaped"
region between Mars and Jupiter?
A. asteroids
B. comets
C. meteors
D. meteorites
3. Which Near-Earth Objects (NEO) are found on the Kuiper Belt and Oort
Cloud?
A. asteroids
B. comets
C. meteors
D. meteorites
4. What are comets made of?
A. dust only
B. metal only
C. dust and metal
D. dust, metal, and ice
5. What do you call the shining "head" around a comet?
A. coma
B. crown
C. halo
D. ring
Answer:
I hope I can help you
I hope I can help you
I will give brainliest and so many points
Identify the reaction
In pic
What happens in a
neutralisation reaction.
Answer:
A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. Salts are also formed in this reaction.
Explanation:
parasitic protists passed by mosquitoes causes this disease
Answer:
Malaria
Explanation:
Mosquitos mainly carry Malaria since the dawn of men.
Answer:
malaria
Explanation:
"Malaria" is a mosquito-borne illness that is caused by a parasitic protist called "Plasmodium protozoa." These parasites are carried by mosquitoes. Once a mosquito bites a human, it creates an opening for the parasites to enter. The parasites then become harmful once they enter the human body. They infect the human's Red Blood Cells (RBCs), which causes several symptoms such as fever, fatigue, headache, cough, nausea, etc.
What is the systematic name and molecular formula of these two:
Answer:
2,4-di Ethyl-2-methylpentane
C10H22
3,4 dimethyl heptane
C9H20
Explanation:
is Fe2(CO3)3 soluble?
What are calories used for?
hurry pls!
Answer:
Calories are used for physical activity.
Explanation:
Calories provide energy for consumers. You may notice when you drink or eat, you gain more energy. This is because calories are stored in our drinks and foods.
Answer:
They are
Explanation:
They are used to make people obese. The government uses calories to make people weak and unhealthy. For example, McDonalds is known to have many calories in their food. I hate the government.
KMnO4 + H2S + HCl KCl + MnCl2 + H2O + S8 Did Cl change oxidation number? Yes, no Did Oxygen change oxidation number? Yes, no Did H change oxidation number? Yes, no Did Mn change oxidation number? Yes, no Did S change oxidation number? Yes, no oxidizing agent = K, O, Mn, S reducing agent = Mn, H, Cl, S
Explanation:
KMnO4 + H2S + HCl --> KCl + MnCl2 + H2O + S8
Did Cl change oxidation number?
The oxidation number of Cl in Reactant side is -1
The oxidation number of Cl in product side is -1
NO
Did Oxygen change oxidation number?
The oxidation number of O in Reactant side is -2
The oxidation number of O in product side is -2
NO
Did H change oxidation number?
The oxidation number of H in Reactant side is 1
The oxidation number of H in product side is 1
NO
Did Mn change oxidation number?
The oxidation number of Mn in Reactant side is +7
The oxidation number of Mn in product side is +2
YES
Did S change oxidation number?
The oxidation number of S in Reactant side is -2
The oxidation number of S in product side is 0
YES
Oxidizing agent (element with decrease in oxidation number) = Mn
Reducing agent (element with Increase in oxidation number) = S
true or false
sugar melting an example of oxidation
and
water evaporating
Answer:
false i think
Explanation:
the taste of acid is sour
yes the taste of acid is sour
Explanation:
the acid increase the hydrogen concentration, which provides more ions for the tongue. Because the tongue gains ions, it registers the flavor as sour.
a primary substance that cannot be divided into separate substances; one of about 112 different basic varieties of matter making up the universe
Answer:
No you can not divide a primary substance into a seperat one because ot wpuld be like divideing the universe
Which function is not associated with cartilage?
Answer:
Cartilage does not contain blood vessels (it is avascular) or nerves (it is aneural). Some fibrocartilage such as the meniscus of the knee does however have blood supply in part. Nutrition is supplied to the chondrocytes by diffusion.
49. Identify the noble gas that has atoms in the ground state with the same electron configuration as the nitrogen in a molecule of isocyanic acid
Answer:
Neon (Ne)
Explanation:
Nitrogen in it's neutral state has valency of 5 and it's electronic configuration is given as;
1s2 2s2 2p3
However in isocyanic acid, it forms a covalent bond with hydrogen and carbon. Due to this bond, it is able to achieve stable octet configuration. The configuration is given as;
1s2 2s2 2p6
This is the same electronic configuration as Neon
The state of matter with the highest kinetic
energy is
A. solid
B. liquid
C. gas
How many grams of Ag are produced if I start the reaction with 5.5 mol Cu?
Equation given:
Cu + 2AgNO3 -> 2Ag + Cu(NO3)2
Answer:
9.34 g Ag
Explanation:
Barium chloride solution was used to test for sulfate ions in the presence of dilute hydrochloric acid. What color precipitate would
form if sulfate ions were present?
Answer:
white
Explanation:
A white precipitate of barium sulfate forms if sulfate ions are present. The hydrochloric acid is added first to remove any carbonate ions that might be present - they would also produce a white precipitate, giving a false positive result. Barium nitrate solution can be used instead of barium chloride solution
25.0(g) of pentane(C5H12) is combined with excess oxygen
Answer:Hlo
Explanation:How are you?
4. A separating funnel can be used to separate a mixture of two________ liquids. *
a) miscible
b) homogenous
c) immiscible
d) distilled
Answer:
d) distilled
Explanation:
A separatory funnel, also known as a separation funnel, separating funnel, or colloquially sep Funnel and fractionating Funnel. , is a piece of laboratory glassware used in liquid-liquid extractions to separate (partition) the components of a mixture into two immiscible solvent phases of different densities.
Answer:
d) distilled
Explanation:
Correct!!!
what is the correlation between the number of mole of ions in the solution and the freezing point
Answer:
13.9
Explanation:
A fixed mass of oxygen gas occupies 300cm cube at 0 degree centigrade. what volume would the gas occupy at 15 degree centigrade
Answer:
Volume occupied by oxygen gas at 15 degree centigrade is equal to [tex]316.5[/tex] centimeter cube
Explanation:
Assuming Pressure is constant.
[tex]\frac{V_1}{T_1} = \frac{V_2}{T_2}[/tex]
where T1 and T2 are temperature in Kelvin
Substituting the give values we get-
[tex]\frac{300}{273} = \frac{V_2}{288}[/tex]
[tex]V_2 = \frac{288*300}{273} \\V_2 = 316.5[/tex]
Volume occupied by oxygen gas at 15 degree centigrade is equal to [tex]316.5[/tex] centimeter cube
Based on graph 4 across a period the electronegativity
pls help 6th grade science
Answer:
C.)
Explanation:
I also saw this question on Brainly! Hope this helps!
Chemical Reaction Type of reaction
2NaCl 2Na + Cl2 _________________________
CaCl2 + F2 CaF2 + Cl2 _________________________
AgNO3 + KCl AgCl + KNO3 _________________________
N2 + H2 2NH3 _________________________
C3H8 + 5O2 3CO2 +4 H2O _________________________
Answer:
Explanation:
2NaCl 2Na + Cl2 synthesis reaction
CaCl2 + F2 CaF2 + Cl2 oxidation-reduction
AgNO3 + KCl AgCl + KNO3 precipitation reaction
N2 + H2 2NH3 i dont know
C3H8 + 5O2 3CO2 +4 H2O Balanced Chemical Reactions and the Conservation of Mass
I will give brainliest and so many points
Answer:are there any answer option? cause i know but i have to make sure
Explanation:
Guys help please!! any five effects of heat!!
[tex] {\huge {\underline {\underline {\bold {\blue{Effects \: of \: Heat}}}}}}[/tex]
Expansion of particles of substances. Increase in temperature.Change in state.Change in physical propertyIt may bring out chemical changes.__________________________________
[tex] \tt\underline\orange{hope \: it \: helps}[/tex]
PLEASE HELPPPP...If you have a mass of 70 kg and you are standing on a platform 8 m above the ground, what is your gravitational potential energy?
Answer: 5491.72
Explanation:
11. Acids are described as being because they dissolve some metals.
Answer:
Corosive
Explanation:
CORRECT
Answer:
Corosive
Explanation:
Hope this will help
2. A sample of oxygen gas is placed in a rigid 1.5L glass container at STP. If the gas is
heated to 100 degrees (Celcius) what is the new pressure in mmHg?
The new pressure : P₂ = 1038.39 mmHg
Further explanationGiven
1.5 L container at STP
Heated to 100 °C
Required
The new pressure
Solution
Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure).
So P₁ = 1 atm = 760 mmHg
T₁ = 273 K
T₂ = 100 °C+273 = 373 K
Gay Lussac's Law
When the volume is not changed, the gas pressure is proportional to its absolute temperature
[tex]\tt \dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}[/tex]
Input the value :
P₂=(P₁.T₂)/T₁
P₂=(760 x 373)/273
P₂ = 1038.39 mmHg
Which characteristic is true of sexual reproduction but not of asexual reproduction?
Answer:
Sexual Reproduction involves two different parties
Explanation:
Asexual is the opposite, so it uses no one else to reproduce
Answer:
Sexual reproduction produces diverse offspring .
Sexual reprodction produces more variations whereas asexual reproduction usually produces very similar organisms
Explanation: