Record the mass of the object based on the reading from the triple-beam balance. The mass of the object is ____ grams.
Answers
Hello!
[tex]\large\boxed{167g}[/tex]
Looking at the balance, we see that:
The middle beam reads 100g.
The top beam reads 60g.
The bottom beam reads 7g.
Add all of the numbers together to get the total mass:
100 + 60 + 7 = 167g.
The mass of the object is 167 grams.
Explanation:
A triple beam balance is a mass measuring instrument used in labs to measure the mass of a substance. It unit in which it measures is grams. It consists of three beams which are: The middle beam has Increments of 100 grams The front beam has Increments from 0 grams to 10 grams The farther beam has Increments of 10 gramsGiven :
Readings of all the scales of three beams of the triple beam balance of an object.
To find :
The mass of object whose reading on triple beam balance is given.
Solution:
Middle beam reader at 100 grams
Front beam reader at 7 grams
Farther beam reader at 60 grams
The mass of object:
[tex]100 grams + 7 garms + 60 grams = 167 grams[/tex]
The mass of the object is 167 grams.
Learn more about triple beam balance here:
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Related Questions
configuracion electronica de aluminio
Answers
Answer:
La configuración electrónica del aluminio es: 1s² 2s² 2p⁶ 3s² 3p¹
Explanation:
El aluminio es un elemento semimetálico de número atómico Z= 13. Con el número atómico y el diagrama de Moeller se puede hallar su configuración electrónica:
1s² 2s² 2p⁶ 3s² 3p¹
The sequence of bases in a DNA template strand is 5'AAAACTGTGCAT3'. What is the corresponding mRNA produced? Label the 3' and 5' end in your answer Enter the mRNA sequence with labels for the 3' and 5' ends.
Answers
The corresponding mRNA to 5'AAAACTGTGCAT3' is
3'UUUUGACACGUA5'.
What is nucleotide sequence?Nucleotides are the bases that are arranged in a specific way, and it joins the two strands of DNA and RNA.
In DNA, four nucleotide bases are present AT and GC. They are attached to each other.
In RNA, the same bases are present but instead of T, U uracil is present.
When reading the DNA, the RNA bases complimentary join with the bases of DNA.
Thus, the corresponding mRNA sequence is 3'UUUUGACACGUA5.
Learn more about base sequence
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What is a measure of the amount of a substance dissolved in a solvent?
Answers
Answer:
Concentration is a measure of how much solute (or dissolved "stuff") is present per amount of solvent (or dissolving liquid) in a solution. The most common measurement of concentration is molarity, abbreviated M. Molarity is expressed in amount per volume, or moles/liter.
Explanation:
need helpppppp hurry pls, i just really need help
Answers
Answer:
6.8 mole of O₂
Explanation:
Given expression:
2H₂ + O₂ → 2H₂O
Number of moles of H₂ = 13.6moles
Unknown:
Number of moles of O₂ = ?
Solution:
In the given problem, we are to find the number of moles of oxygen gas that will use up 13.6mole of hydrogen gas;
From the reaction equation;
2 mole of H₂ will completely react with 1 mole of O₂
13.6 moles of H₂ will completely be used up by [tex]\frac{13.6}{2}[/tex] mole of O₂
= 6.8 mole of O₂
Question 4 of 10
What is the molarity of a solution of 3 moles (mol) of FeBr3 in 1/2 L water?
A.
3 mol/2L
B.
2L/3 mol
C.
0.5L/3 mol
D.
3 mol/0.5 L
SUBMIT
Answers
Answer:
B
Explanation:
Answer:
D. 3 mol/0.5 L
Explanation:
Just took the quiz
Identify a metalloid from the following
(1) Antimony
(2) Sodium
(3) Aluminium
(4) Helium
Answers
Antimony
Hope it helps
Answer:
[tex]\boxed {\boxed {\sf 1. \ Antimony}}[/tex]
Explanation:
A metalloid is an element that is "in between" a metal and non-metal. They display some properties of both.
On the Periodic Table, the metalloids are found in a zig-zag step pattern to the right of the metals and the left of the non-metals.
There are 7 metalloids: boron, silicon, germanium, arsenic, antimony, tellurium, and polonium.
So, the correct answer is 1. Antimony
Question 7
2 pts
(04.03 LC)
Which of the following steps can be used to identify a single replacement reaction? (5
points)
O Check whether the products are salt and water.
O Check if the ions of two compounds exchange places.
o Check if one element replaces another element in a compound.
Check whether the reactants are an acid and a base.
Answers
Answer:
d
Explanation:
check if one element replaces another element in a compound
The single replacement reaction can be identified when there has been the replacement of one element with another element in the compound. Thus, option C is correct.
The replacement reaction can be defined as the reaction in which the highly reactive element replaced the low reactive element in the reaction and forms a compound.
The reaction has been given as:
X + AY [tex]\rightarrow[/tex] AX + Y
The X has been highly reactive than Y replaces Y in the compound and forms the compound AX.
The single replacement reaction can be identified when there has been the replacement of one element with another element in the compound. Thus, option C is correct.
For more information about a single replacement reaction, refer to the link:
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A very hot cube of copper metal (32.5 g) is submerged into 105.3 g of water at 15.4 0C and it reach a thermal equilibrium of 17.3 0 Calculate the initial temperature of copper (Cs = 0.385 J/g 0C for copper, and 4.18 J/g 0C for water).
Answers
Answer:
The initial temperature of the metal is 84.149 °C.
Explanation:
The heat lost by the metal will be equivalent to the heat gain by the water.
- (msΔT)metal = (msΔT)water
-32.5 grams × 0.365 J/g°C × ΔT = 105.3 grams × 4.18 J/g °C × (17.3 -15.4)°C
-ΔT = 836.29/12.51 °C
-ΔT = 66.89 °C
-(T final - T initial) = 66.89 °C
T initial = 66.89 °C + T final
T initial = 66.89 °C + 17.3 °C
T initial = 84.149 °C.
Also can someone help me with this one as well, thank you! :)
Answers
Answer:
a. The density of the aluminum will change if the sample gets too big.
Explanation:
Since increasing its size increases its volume hence it affects the value of its density by decreasing.
note: Density = mass/volume.
When an element in the first group of the periodic table
reacts with an element in the seventh group, what is the
type q bond that is likely to be formed?
Answers
Answer:
An ionic bond
Explanation:
They are most likely going to form an ionic bond.
An ionic bond is where atoms lose/gain electrons.
It is easier for elements in the first group to lose the one electron on their valence shell and for elements in the second group to take that.
Some examples are Sodium Chloride (NaCl) and Potassium Chloride (KCl)
7. Compare and contrast a dilute solution of a strong acid
and a concentrated solution of a weak acid.
Answers
Explanation:
An acid is a substance that ionizes to produce excess hydrogen ion in solutions.
A concentrated acid contains a high amount of hydrogen ions in solution compared to other ions. Such solutions usually ionizes completely. A dilute solution contains a high proportion of water and with low amount of hydrogen ions. They do not ionize easily and as fast as strong acids.Correct the following statements
a.an element is a combination of two or more compounds
b. When a small amount of sugar is completely dissolved in water, a heterogeneous solution is formed
Answers
Answer:
a. Any substance that contains only one kind of an atom is known as an element. Because atoms cannot be created or destroyed in a chemical reaction
b. Sugarsolution is a homogeneous mixture because any substance dissolved in water becomes a homogeneous mixture
Predict how many electrons will Li (lithium) most likely be gained or lost
Answers
Answer:
Lithium will lose about 2 electrons
Making it a cation
Answer:
about three
Explanation:
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Among the following, which is NOT an ionic compound?
Ca3N2
N204
AICI:
NaCl
Answers
Answer:
NaCl
Explanation:
HCI is a poiar covalent compound while ℂI4 is a non-polar covalent compound because both are iormed by sharing of electrons. KCl and NaCl are formed by the transfer of electrons and are ionic compounds.
3. Sulfur
a) Orbital Notation:
OO 0000
DOC
b) Electron Configuration:
4. Iron (Fe)
a) Orbital Notation:
O O OOO OO OO ОО
b) Electron Configuration:
Answers
Explanation:
We are to write the orbital notation and electronic configuration of sulfur and iron.
The orbital notation shows the filling of electrons into orbitals or sublevels.
Electron configuration shows the distribution of electrons into shells;
Number of electrons Electron configuration Orbital notation
S 16 2 8 6 1s² 2s² 2p⁶ 3s² 3p⁴
Fe 26 2, 8, 14 2 1s² 2s² 2p⁶ 3s² 3p⁶3d⁶4s²
Calculate the percent composition of C6H12O6
Answers
Answer:
Did you just let your cat walk on your keyboard? XD
Could you explain this a bit better please?
I'll answer the question in the replies of this comment if you can give me a bit more information.
Explanation:
May I have brainliest please? :)
Explain what occurs when an electron is given energy from an outside source.
Answers
Answer:
An electron can become excited if it is given extra energy, such as if it absorbs a photon, or packet of light, or collides with a nearby atom or particle.
Explanation:
Mark me brainliest.
Analyze how friction can be both a positive and negative aspect in our everyday lives. Use examples to support your statements.
Answers
Answer:
For example, friction between our shoes and the floor stop us from slipping and friction between tyres and the road stop cars from skidding. Friction is sometimes unhelpful. For example, if you don't lubricate your bike regularly with oil, the friction in the chain and axles increases.
Explanation:
How many moles of carbon dioxide molecules
are there in 50g of carbon dioxide?
Answers
Answer:
3.011×1023 individual carbon dioxide molecules
if you had a piece of chalk that has a mass of 5 grams, what would you predict about its density?
Answers
Answer:
It would be about 1 g/mL.
Explanation:
With the information provided the volume of the chalk can be said to be about 5mL.
Hence;
Its density = 5g/5mL = 1g/mL.
8. Chuck wants to investigate how gas molecules move in a container. Which model would be helpful to represent this motion?
A.) stacking blocks to build a tower
B.) freezing water in a ice cube tray
C.) bouncing elastic balls off of each other and the walls of a room
D.) placing a closed, water-filled plastic bag in the sun and watching condensation form
Answers
Answer:
nuts in yo mouth
Explanation:
Answer:
I'm not 100% sure but it's not A or B. It's probably cc
Explanation:
6. Look carefully at the following diagram. It does not obey the law of conservation of matter. Explain why it does not follow the law of conservation of matter using evidence
from the diagram.
Answers
Answer:
Sort of answer, but it'll lead you in the right direction I hope.
Explanation:
I mean, ofc, the molecules or atoms or whatever the circles are can't be put together that way bc matter says so. It looks like the other diagram is showing water or gas, and if it were turning into the one on the right, then it would usually either settle into water if it was gas or become a single solid object like water. If this is gas, then it doesn't make sense, because gas particles are always separate from each other.
what is the element that is in f block and period 6 that is a rare earth metal
Answers
Answer:
Neodymium
Explanation:
Help plz:))) I’ll mark u brainliest
ASAP!!!
Answers
Answer:
rank from lower to higher electronegativity
16)Li
C
N
17)Ne
C
O
18)Si
P
O
19)K
Mg
P
20)He
S
F
VThis section also demonstrates your understanding of the experiment, through your ability to offer constructive criticism about its design and make suggestions for future experimentation. There are always ways that experiments can be improved. Now that you are a veteran of this experiment and have experience with the procedure, offer some advice to the next scientist about what you suggest and why.
Answers
Hello. You did not say what is the experiment to which this question refers, which makes it impossible for it to be answered accurately.
However, advice that should be given to anyone who should start an experiment is: establish a control treatment, provide all treatments with the same variables and the same resources, write down everything that happened in the experiment from implementation to data collection and results, make measurements and analyzes on the same date in all treatments and keep the steaks in the same environment.
Answer:
Which Lab are you doing?
Which pair of elements can form ionic bonds?
A.
copper (Cu) and nitrogen (N)
B.
gallium (Ga) and phosphorus (P)
C.
hydrogen (H) and sulfur (S)
D.
phosphorus (P) and fluorine (F)
E.
potassium (K) and bromine (Br)
Answers
Answer:
E. potassium (K) and bromine (Br)
Explanation:
An ionic bond is formed between compounds with a large electronegativity difference between them. It is usually between a metal and non-metal.
Potassium is a true metal found in group 1 on the periodic table. Bromine is a highly electronegative non-metal which is a halogen. Potassium will lose one of its electrons which will be gained by the Bromine. The electrostatic attraction between the two species will cause the ionic bond to form. The ability of one specie willing to lose electron and the other gaining, is the main bed rock of ionic bonding.Answer:
Correct answer: E. potassium (K) and bromine (Br)
Explanation:
(Correct answer for (portal and Edmentum users too)
Hope I was helpful :) good luck on your school work and have a great day
{QUICK! HELP!} What is the chemical reaction when you add zinc to copper sulfate?
Answers
Answer:
the zinc strip begins to darken. If left in the solution for a longer period of time, the zinc will gradually decay due to oxidation to zinc ions.
Explanation:
Crude oil may contain hundreds of different types of hydrocarbons. Some examples include: Butane(C4H10) Dodecane (C12H26) Octane (C8H18) Benzene (C6H6) Many common fuels, such as gasoline and kerosene, are combinations of these substances or others. When these fuels burn, they combine with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O).
Answers
Answer:
Butane and benzene are both compounds. They contain multiple elements bonded together in a specific ratio. Kerosene and gasoline are mixtures because they are combinations of several compounds. Oxygen is an element because it is made up of only one type of atom.
Explanation:
Consider the reaction: 3 N2 (g) + 2 O3 (g) → 6 NO (g) ΔfH ° (kJ/mol) 0.00 142.26 90.37 Sm ° (J mol-1 K-1) 191.5 237.7 210.6 What is ΔrG ° for this reaction in kJ/mol at 350 K?
Answers
Answer:
Explanation:
3 N₂ (g) + 2 O₃ (g) → 6 NO (g)
Δ H(rxn ) = 90.37x 6 - ( 0 + 142.26 x 2 )
= 542.22 - 284.52
= 257.7 kJ
Δ S(rxn ) = 6 x 210.6 - ( 2 x 237.7 + 3 x 191.5 )
= 1263.6 - ( 475.4 + 574.5 )
= 213.7 J / K
Δ G = Δ H - T Δ S
= 257.7 - 350 x 213.7
= - 74537.3 kJ .
Δ G / mole = - 74537.3 / 6 = - 12422.88 kJ / mol.
I dont get this, please help
Answers
Answer:
The answer is B
Explanation:
Inertia: a tendency to do nothing or to remain unchanged.