Answers
Answer:
b
Explanation:
I don't know that is what the outcome is I think
Related Questions
In an experiment, how many variables should you change at a time? And why?
Answers
Answer:
it should test one variable at a time.
Explanation: because you will not be able to tell which variable is responsible for the observed results.
Which properties describe the elements in group 18?
Answers
Why are stars special sources of light?(2 points)
They are made of gas.
O They twinkle in the night sky.
They get their light from the sun.
They give off their own light energy.
Answers
Answer:
They give off their own light energy
Explanation:
I'm taking astronomy and I answered this questions not too long ago
When an atom loses an electron, the resulting charge on the atom is ____
Answers
Answer:
Positive
Explanation:
The atom will gain a positive charge by losing an electron
Answer:
cation
Explanation:
Obtaining crude oil for refining is an example of
A. Constructive occupation
B. Extractive occupation
C. Manufacturing occupation
D. Tertiary occupation
E. Service occupation
Answers
Answer:
B: extractive occupation
Find a room that can be made completely dark. In the room, tape the pieces of construction paper on a wall, slightly above eye level. Turn on the flashlight, and turn off the lights in the room. Hold the flashlight over your head and angle it down slightly so the light hits the colored paper. Can you see the light traveling through the room before it hits the paper?
Answers
Answer:
Yes, I can see the light traveling through the room before it hits the paper.
Explanation:
edmentum
Since light rays travels in a straight line, the light traveling through the dark room can be seen before it hits the paper.
What are light rays?Light rays refers to a straight line path through which light waves travel.
Light rays travel in a straight line and this phenomenon is known as the rectilinear propagation of light.
In a dark room, the path of light rays travelling in a straight can be seen.
Therefore, the light rays traveling through the room can be seen before it hits the paper.
Learn more about light rays at: https://brainly.com/question/478185
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WDYT a mixture is? Please help
Answers
Answer:
A mixture is when two substances are physically combined and can be taken apart.
Explanation:
my words
help me with this pleasee
Answers
Calculate the number of atoms in 0.50 moles of Barium
Answers
.5 * 137.33 = 68.67
Please help I’ll even give you brainliet
What is the molecular formula for a compound that is 34.31% sodium, 17.93% carbon, 47.76% oxygen and has a molar mass of 134.00g?
Answers
Answer: Na2C2O4 probably sodium oxalate
Explanation: assume you have 100 g substance.
Mass of Na is m(Na) = 34.31 g, m(C) = 17.93 g and m(O) = 47.76 g.
Calculate moles n(Na) = 34.31 g/22.99 g/mol= 1.49 mol.
For C n(C) = 1.49 mol and n(O) = 2.985. You divide all by 1.49 you
Get n(Na) : n(C) : n(O) = 1:1:2 M(NaCO2) = 67 g/mol.
Divide 134:67 = 2. You get formula Na2C2O4
Which statement best describes the polarity of the molecule Sil4?
Answers
Answer:
I dont a picture
Explanation:
but the answer is 24
HELPP ILL GUVE YOU LOTS OF POINTS EVERYTHING U WANT I REALLY NEED HELP
Answers
Answer:
but what is your question? it's just like the moon going around earth while earth along with all the other planets revolve around the sun
Explanation:
Which of the following is the conjugate base of HPO42-?
Answers
Answer:
A. PO4^3-
Explanation:
took the quiz on a pex
The conjugate base of HPO₄²⁻ is PO₄³⁻. Therefore, option (A) is correct.
What is the Bronsted-Lowry concept?The Bronsted-Lowry concept can be explained as an acid-base reaction where base and acid react with each other and by an exchange of proton acid, forms its conjugate base and the base generates its conjugate acid.
The Bronsted-Lowry theory is an extended version of Arrhenius's theory of acid-base. According to this concept, acid can be defined as a substance that donates a hydrogen ion or a proton and produces its conjugate base and the base can be defined as a substance that accepts a proton and creates its conjugate acid.
Bronsted-Lowry acid in the dissociation form can be represented as:
Acid ⇄ Conjugate base + H⁺
The conjugate base of Bronsted-Lowry acid HPO₄²⁻ can be represented as follows:
HPO₄²⁻ ⇄ PO₄³⁻ + H⁺
Therefore, PO₄³⁻ is the conjugate base of the Bronsted-Lowry acid HPO₄²⁻.
Learn more about the Bronsted-Lowry concept, here:
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In order to form water, two hydrogen atoms and one oxygen atom must be
A. dissolved.
B. bonded.
C. divided.
D. mixed.
Answers
Answer:
B bonded
Explanation:
Two molecules of hydrogen gas (two hydrogens bonded together) are combined with one molecule of oxygen gas (two oxygen atoms bonded together) in order to form two molecules of water (two hydrogen atoms bonded to one oxygen atom). What are covalent bonds? Covalent bonds occur when two or more atoms share electrons.
In order to form water, two hydrogen atoms and one oxygen atom must be bonded. The correct option is B.
What are covalent bonds?Covalent bonds between two or more atoms occur when they share electrons. with each other.
Two molecules of hydrogen gas are combined with one molecule of oxygen gas which forms two molecules of water. Hydrogen take one electron and oxygen can donate two electrons. One oxygen shares two electron with two hydrogen with one electron gaining capacity.
Thus, in order to form water, two hydrogen atoms and one oxygen atom must be bonded. The correct option is B.
Learn more about covalent bond.
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A structure that contains a watery fluid which protects the embryo/fetus is 7 7 point
known as? *
chorion
amnion sac
uterus
cervix
Answers
Answer:
and unborn baby
Explanation:
an unborn baby
Choose the correct option
Answers
Answer:
C
Explanation:
Hope this helps.
A clownfish uses a sea anemone as a safe place to live. While living there, the clownfish lures in food for the anemone. This is an example of what type of relationship?
Answers
1.0 mole of KCl(aq) is added to which solution to produce a precipitate?
A)
Lit
B)
Ca2+
Agt
D)
Zn2+
Answers
Answer:
Ag+
Explanation:
If you imagine as if the problem were double replacement, you would pair the Cl with one of the following ions provided in the choices. As seen on Table F, Ag+ paired with Cl- produces an insoluble compound, hence the precipitate. All the other ions shown in the multiple choice section, when paired with Cl- will produce a soluble compound, as a result NOT a precipitate.
PLEASE HELP!!!!!!!! I DO NOT UNDERSTAND
Answers
Answer:
A, B, C
Explanation:
Explanation
I just got confessed to
but i only like the person 89% out of 100...
what should I do ?
Answers
Answer:
:)haha
Explanation:
Answer:
:D
Explanation:
If you try to place the compound on the pan over the flame, what could possibly happen? Explain your answer. [2 marks] anyone please help me!!:(
Answers
Answer:
it will probably flame up or explode or maybe start boiling
When Na2O is mixed with Mn(NO3)4 it forms NaNO3 and MnO2. We start with 25.0 g
of sodium oxide and 56.1 g of manganese (IV) nitrate.
How many grams of sodium nitrate can be produced?
Answers
In the reaction shown, how many moles of HCl are needed to react with 2.4 moles of Al?
2 Al + 6 HCI - 2 AlCl3 + 3 H2
оа
7.2
Ob
6.4
Ос
0.8
d
1.3
е
4.8
Answers
Answer:
7.2 moles
Explanation:
Since the equation is balanced, we can use a mole ratio. 6 moles of HCl : 2 moles of Al. Thus, to convert, we simply multiply by 3.
Answer:
7.2 moles of HCl
Explanation:
The balanced reaction equation of the reaction is;
2 Al + 6 HCI ---------> 2 AlCl3 + 3 H2
We can see from the reaction equation that;
6 moles of HCl reacts with 2 moles of Al
Hence;
x moles of HCl reacts with 2.4 moles of Al
x = 6 * 2.4/2
x = 7.2 moles of HCl
how many chemical bonds are in glucose?
Answers
Answer:
4 covalent bonds
Explanation:
If 0.25 moles of KBr is dissolved in 0.5 liters of
heavy water which has a mass of 1,100 grams
per liter, what is the concentration?
Answer in units of m (molal).
Answers
Answer:
[KBr] = 454.5 m
Explanation:
m is a sort of concentration that indicates the moles of solute which are contianed in 1kg of solvent.
In this case, the moles of solute are 0.25 moles.
Let's determine the mass of solvent in kg.
Density of heavy water, solvent, is 1.1 g/L and our volume is 0.5L.
1.1 g = mass of solvent / 0.5L, according to density.
mass of solvent = 0.5L . 1.1g/L = 0.55 g
We convert the mass to kg → 0.55 g . 1kg /1000g = 5.5×10⁻⁴ kg
m = mol/kg → 0.25 mol /5.5×10⁻⁴ kg = 454.5 m
2. Have you ever seen a natural event that surprised
you? Why was it surprising?
Answers
Answer:
I have seen many lightning storms before. However, one of the most surprising ones was when I was at my house. It was around midnight when I awoke from the sound of lightning in the distance. I was also half awake so this could be another reason this was the most surprising, but lightning struck near my area. i could see the light through my curtains and the sound was loud enough to awake everyone in my house, even the deep sleepers. I practically jumped out of bed.
What drives the flow of energy in cycling of matter in the atmosphere
Answers
Need done fast please! 41 points
Heat energy provided during phase change is used to:
increase kinetic energy
break intermolecular bonds
break intramolecular bond
decrease kinetic energy
Answers
Answer:
I'm not exactly sure but I think it's the first one if I'm wrong tell me so I know and I don't know how I can get points back but if I can figure it out I will tell me if I'm wrong
7. A sample of helium gas occupies a volume of 24.6 L at 2.20 atm. What would its volume be at 3.50 atm?
Answer: 15.5L
Please show your work
Answers
so, here's your answer, 15.5L (appr)
During the daytime, we can see things because the sun is giving off
heat energy
light energy
sound energy
electrical energy
Answers
Answer:
light energy
.................
Answer:
light energy
Explanation:
heat does not effect how we see
the sun does not have sound
electrical energy does not effect how we see