Answer:
[tex]\boxed {\boxed {\sf A. \ Nickel}}[/tex]
Explanation:
First, we must find the density of the unknown metal.
Density is found by dividing the mass by the volume.
[tex]d=\frac{m}{v}[/tex]
The mass of the metal is 89 grams and the density is 10 cubic centimeters.
[tex]m= 89 \ g \\d= 10 \ cm^3[/tex]
Substitute the values into the formula.
[tex]d=\frac{89 \ g}{10 \ cm^3}[/tex]
Divide.
[tex]d= 8.9 \ g/cm^3[/tex]
Now we know the density and can identify the unknown metal.
Nickel: 8.9 g/cm³Silver: 10.5 g/cm³Lead: 11.35 g/cm³Mercury: 13.55 g/cm³The density matches nickel's density. Therefore, this metal must be nickel.
8.
A student measured the mass of a rubber stopper to be 6.00 grams. When it was placed into a
graduated cylinder that initially had 2.0 mL of water, the water went up to the 5.0 mL of water. What is
the density of the rubber stopper?
a) 3.0 g/mL b) 1.2 g/mL
d) 0.60 g/mL
e) none of these
$) 2.0 g/mL
Answer:
A
Explanation:
Because you subtract the amount it was after it want up by the initial amount
An atom with 25 protons and 27 electrons has a charge of +
True
False??
Answer:
Unless you mistyped the question, the answer should be 25+
A golfer hits a ball (m = 50. G) causing it to the leave its fairway lie with a velocity of 32 m/s. Determine the change in momentum of the ball. If the ball strikes the club face for only .05 s, what force is applied by the club to the ball?
Answer:
gravity I not that sure with the answer
d = 24 g/ml
v = 1200 ml
m = ?
Answer:
28,800 gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volume
From the question we have
mass = 24 × 1200
We have the final answer as
28,800 gHope this helps you
please Help and Thanks!
Need help. Is this correct
Answer:
Yes, that is correct!
Explanation:
Answer:
Yes
Explanation:
A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted by the two atomic nuclei. A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.
Which of the following shows the correct order of the levels of classification form Largest to smallest
Explain how cross cutting principles (intrusions, inclusions, faults) help to determine the relative age of a rock layer.
Answer:
The principle of cross-cutting relationships states that a fault or intrusion is younger than the rocks that it cuts through. ... So the fault must be the youngest formation that is seen. The intrusion (D) cuts through the three sedimentary rock layers, so it must be younger than those layers
Explanation:
Give an example of a trait and explain how a genetic trait is passed down from
parent to offspring in animals.
Your answer
Explanation:
Parents pass characteristics such as hair color, nose shape, and skin color to their offspring. Not all of the parents' characteristics will appear in the offspring, but the characteristics that are more likely to appear can be predicted.
I'm just trying to answer questions. T^T
Explain why a flash of green light made flubber so energetic
Answer:
The flash of green light may give off some type of energy that only emits from green light which probably energizes the Flubber
Explanation:
A flubber is a rubber like polymer that absorbs and amplifies energy. A flubber absorbs energy from a light source and electrons present in it are excited in order to emit light of higher wavelength. The green light absorbed by the flubber to emit longer wavelength of light emitting more energy.
5. Thomson's experiments with cathode rays led to the discovery of the:
electron
Neutron
What do both plants and animal cells break down for energy?
Answer:
both plant and animal cells must break down food molecules to get energy from them
how many neutrons does this atom have?
A. 4
B. 6
C. 10
D. 14
((help. I'm timed so please be quick ;-;
Answer:
the ander is B. 6 neurons
Answer:
10
Explanation:
What particle determines the name/identity of the element?
Answer:
Number of protons
Explanation:
The number of protons in one atom of an element determines the atom's identity, and the number of electrons determines its electrical charge.
What is the simplest whole-number ratio of atoms in a molecule or formula unit called?
O the molecular fomula
O the molar mass
O the percent composition
O the empirical formula
Answer:
the empirical formula
Explanation:
I remember learning this last year.
Answer:
the empirical formula
Explanation:
What is the speed of a car that has traveled 100 miles in 20 hours?
|
Answer:
5 mph
Explanation:
100 miles, 20 hours (divide by 2)
50 miles, 10 hours (divide by 2)
25 miles, 5 hours (divide by 2)
divide both sides by 5
5 miles, 1 hour
Answer:2
Explanation:
what were J.J thomson's ideas called
Answer: the plum pudding model
Explanation:
for A P E X i just took the test
Which type of mass movement is the most destructive
Answer:
Landslide
Explanation:
its most destructive because its various rocks falling and it goes blammow
Answer: the answer is C
Landslide
Explanation:
The correct name for P5O2 is
Answer:
phosphorous(iii) oxide
Explanation:
Hope this helps! :)
A whale is swimming in the ocean. It communicates with another whale by sending out a sound. Which of the following best
describes how the sound gets to the other whale?
A.
All of the sound absorbed by water changes to heat before getting to the other whale.
В.
The sound is transmitted through water until it reaches the other whale.
C.
All of the sound is diffused in
the water until only a faint sound reaches the other whale.
.D
The sound is reflected in the water before it gets to the other whale.
Answer:
A.
The sound is transmitted through water until it reaches the other whale.
Explanation:
When one whale makes a sound, the sound is transmitted through water until it reaches the other whale. The sound causes a ripple-like effect in the water, producing waves that travel in the water. The waves are heard in all directions. This is why humans can hear the sounds animals make underwater.
The statement which best describes how the sound gets to the other whale is that all of the sounds absorbed by water change to heat before getting to the other whale. Thus, the correct option for this question is A.
How sound may transmit from one place to another?The transmission of sounds is generally carried out through a medium in the form of waves. These sound waves involve the pattern of disturbance caused by the movement of energy.
In an aquatic environment, when one whale successfully constructs a sound, the sound is effectively transmitted through the medium that is known as water.
It remains in the form of waves until it reaches the other whale. The sound in a waveform provokes a ripple-like effect in the water and travels in the water. The waves are effectively heard in all directions.
Therefore, the correct option for this question is A.
To learn more about Transmission of sound in water, refer to the link:
https://brainly.com/question/18451537
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is the electrolysis of water an oxidation-reduction reaction??
Answer:
Yes
Explanation:
Electrolysis is an example of redox reaction because reduction takes place at cathode and oxidation takes place at anode and both of these reactions take place simultaneously.
Many plants in rainforests have leaf tips that come to a point, so precipitation drains off the leaf. This helps to keep the plant safe from harmful germs. Based on this info, what resource is prevalent in a rainforest?
Answer:
rainfall/water
Explanation:
The possession of drip tips by the leaves of plants in the rainforest is a form of adaptation against high rainfall. Without the drip tips on leaves, water will persist on the surface of leaves, and in conjunction with the warm climate, promotes the growth of pathogens such as fungi and bacteria.
Hence, the possession of drip tips on leaves is an indication of the prevalence of water in the rainforest region.
whether the solution is acidic or basic And how much if we dissolve 6 grams of nitric acid and make 500cm3 of solution helpp pleasee
Answer:
i have no clue good luck
Explanation:
2. How many moles are in 34.0g of Silver hydroxide?
Answer:
0.272 mol AgOH
Explanation:
Figure out the amount of AgOH in mass, and to find the amount of moles–you just divide the given amount (34g) by the molar mass of AgOH (125g) to figure out the amount of moles. 34/125 = 0.272 mol AgOH.
HELP!! ASAP!! WILL MARK BRAINLIEST!!!
What are the only elements that make up organic compounds?
Question 2 options:
A)
Carbon, hydrogen, oxygen, and nitrogen
B)
Germanium, hydrogen, potassium, and nitrogen
C)
Carbon, hydrogen, lithium, and silicon
D)
Silicon, hydrogen, carbon, and nitrogen
The only elements that make up organic compounds are in option A. Carbon, hydrogen, oxygen, and nitrogen.
Organic compounds are compounds that primarily consist of carbon and hydrogen atoms. However, organic compounds can also contain other elements such as oxygen and nitrogen, which are commonly found in biological molecules. Carbon forms the backbone of organic compounds, providing the structural framework, while hydrogen is frequently bonded to carbon. Oxygen and nitrogen are also essential elements in organic compounds, participating in various functional groups and forming bonds with carbon and hydrogen.
Therefore, option A (Carbon, hydrogen, oxygen, and nitrogen) is the correct choice as it includes the elements that are predominantly found in organic compounds.
Learn more about organic compounds here:
https://brainly.com/question/13508986
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how many elements and atoms are in tylanol
Answer:
Element Symbol # of Atoms
Hydrogen H 9
Carbon C 8
Nitrogen N 1
Oxygen O 2
Explanation:
there are 5 elements
What is the mass of 5.4 x 10^24 molecules of HCl?
Answer:
I KNOW
Explanation:
what is the chemical formula of tetranitrogen tetrabromide?
PLEASE HELP
Vehicles use diesel fuels. Which one of these energy transformations takes place when the fuel is used by the engine
Answer:
A
Explanation:
I would say a because we all know that kinetic energy is energy in motion and fuel is an example of chemical energy. So it must be from chemical to kinetic energy.
The sum of all forces acting on an object
Answer:
The sum of all forces acting on an object is net force