Answer:
you need to put a choice if you want help add the possible answers
Explanation:
A piece of gold has a mass of 21.7 kg and a volume of 5.78 cm3 . What is the density of gold? (Convert kgg)
Answer:
The answer is 3754.33 g/cm³Explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question
mass = 21.7 kg = 21700 g
volume = 5.78 cm³
We have
[tex]density = \frac{21700}{5.78} \\ = 3754.3252...[/tex]
We have the final answer as
3754.33 g/cm³Hope this helps you
Each water molecule can form hydrogen bonds with up to _____ neighbors
Group of answer choices
6
8
2
4
Answer:
2
Explanation:
thats the answer.have good day
Elements in columns with the same number of valence electrons are in the same___
Answer:
group
Explanation:
The periodic table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital.
Plz help! I’m on a timer!
Answer: c. ceabd
Explanation: Substances that are more dense move to the bottom of the beaker. Substances that are less dense float to the top.
What did Edwin Hubble discover about the universe?
O Distant stars are all moving away from us.
O The farthest stars are blueshifted.
O The stars in our galaxy are all moving away from us.
The universe is an unchanging place.
How many total atoms of element X are represented below?
name one state of matter
Answer:
solid
Explanation:
Answer:
Gas
Explanation:
What components of an atom has no charge
Answer:
Neutrons
Explanation:
Protons have a positive (+) charge.
Electrons have a negative (-) charge.
Neutrons have a neutral (0) charge.
Answer: neutrons
The components of an atom that have no charge are neutrons. Neutrons have a neutral charge, which means it has no charge. It is not positive or negative. The answer is neutrons.
zinc metal reacts with hydrochloric acid to produce hydrogen gas.
what best describes this reaction?
a. A single replacement reaction takes place because zinc is more reactive and hydrogen
b. A single replacement reaction takes place because zinc is more reactive than chlorine
c. A double replacement reaction takes place because zinc is less reactive than hydrogen
d. A double replacement reaction takes place because zinc is less reactive than chlorine
a. A single replacement reaction takes place because zinc is more reactive and hydrogen
Further explanationIn voltaic series
Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au
The more to the left, the metal is more reactive (easily release electrons) and the stronger reducing agent
The more to the right, the metal is less reactive (harder to release electrons) and the stronger oxidizing agent
So that the element located on the left can push the element on the right in the redox reaction
Reaction
Zn+2HCl ⇒ ZnCl₂ + H₂
If we look at this reaction, the elements that play a role are those that undergo a redox reaction
Oxidation : Zn⇒Zn²⁺ + 2e
Reduction : 2H⁺ + 2e ⇒H₂
So Zn (located on the left) can push H (the element on the right) in the redox reaction ⇒ Zn more reactive
A single replacement reaction is a chemical reaction in which one element replaces the other elements of a compound to produce new elements and compounds
A+BC⇒AC+B
So the above reaction involves the elements Zn and H which undergo a redox reaction and are included in a single replacement
Answer:
A
Explanation:
This illustration is an example of a
The illustration is an example of surface waves.
Is combining water and powdered drink mix a chemical reaction? Construct an argument to support your claim.
Answer:No
Explanation:
It doesn't make a chemical reaction if u do that. Hope that helps!❤
How do geologists know that there once was a vast sea where the Grand Canyon is today?
The geologists know the presence of the vast sea at Grand Canyon by the erosion and indentations.
Grand Canyon in Arizona has been the rock sediment. It has been determined to be the vast sea due to the presence of oceanic floors. The erosion of the rocks results in the formation of the land over a vast period of time.
The rock indentation results in the formation of the mountains. The rock has been indented with the force thus, there has been the oceanic force that results in the indentations.
Thus, the erosion and indentations have resulted in the formation of the Grand Canyon by a vast sea.
For more information about the geological study, refer to the link:
https://brainly.com/question/13394878
According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? The volume and the shape stay the same. The volume increases to fill the new container, but the shape stays the same. The volume stays the same, but the shape changes to fit the new container. The volume and the shape change to fill the new container.
Answer:
C, "The volume stays the same, but the shape changes to fit the new container."
Explanation:
i took the test & got this question correct.
Answer:
It's C
Explanation:
For Edge:)
Plz help! The best answer will be marked as brainliest!
Make a funny sentence for flammability and compounds for Magnesium
Here is an example for Mercury, it HAS to for Magnesium
“I love to travel but I do corrode aluminum so we won’t be flying off on adventures in airplanes planes anytime soon”
Answer:
This is hilarious, every time I ignite, they feed me water, little do they know this heat will defeat, and hydrogen only makes me stronger!
Explanation:
When Hg is burning, it uses the oxygen from H2O and turns it into hydrogen gas, and that contributes to the burning.
Practice Problem #2 - Frank has an eraser with a mass of 10g and a volume
of 15cm? What is its density? Show your work:
Answer:
The answer is 0.67 g/cm³Explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question
mass = 10 g
volume = 15 cm³
We have
[tex]density = \frac{10}{15} = \frac{2}{3} \\ = 0.66666666...[/tex]
We have the final answer as
0.67 g/cm³Hope this helps you
If a substance has a density GREATER
than the liquid it's in, then it will
Answer:
sink
Explanation:
a substance with a higher density than others will sink and vice versa
which element, Magnesium or Barium, will react more violently with water, and
WHY?
Answer:
magnesium
Explanation:
Mangrove trees are affected by several factors. Which is an abiotic factor contributing to the energy cycle of a mangrove ecosystem?
Answer:
Just think of whats in a forest ecosystem
for example
Water
sunlight
tempreture
The abiotic factor that has been capable of contributing to the energy cycle of the mangroves has been climate.
Mangrove trees are the shrubs that have been found in the coastal regions. The trees have been capable of tolerating the harsh climatic conditions such as salty water, the flow of tides, etc.
The abiotic are the nonliving factors that has been capable of changing get resulting in the formulation of the ecosystem.
The mangroves have been capable to thrive in hard conditions. The abiotic factor that has been capable to affect the growth of the mangroves has been climate.
For more information about Mangrove trees, refer to the link:
https://brainly.com/question/7780978
MAJOR AMOUNT OF POINTS
What is the chemical formula of wood?
Answer:
C₆H₁₀O₅
Explanation:
In chemistry, we denote any molecule with carbons, hydrogens, and other elements combined together as organic compounds. This is where get get "Organic Chemistry" from.
Wood is going to be an organic compound.
Answer:
C₆H₁₀O₅
Explanation:
box a and box b have the same density. box a had more volume. which box has more mass?
Answer:
Box A.
Explanation:
Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.
Mathematically, density is given by the equation;
[tex]Density = \frac{mass}{volume}[/tex]
In this scenario, Box A and Box B have the same density. However, Box A had more volume. Therefore, the box that would have more mass would be Box A because it has more capacity or volume to hold more matter.
This ultimately implies that, the volume of a box is directly proportional to its mass (amount of matter it can hold); the higher the volume of the box, the higher its mass (more mass).
Let's assume Box A has a volume of 25cm³ and a mass of 50kg.It's density would be;
[tex]Density = \frac{50}{25}[/tex]
Density = 2kg/cm³
Assuming Box B has a volume of 10cm³ and a mass of 20kg.It's density would be;
[tex]Density = \frac{20}{10}[/tex]
Density = 2kg/cm³
Therefore, it can be deduced that even though Box A and Box B have the same density; Box A had more volume and consequently, more mass.
What does the statement there is only about 13.7 billion ⭐️ in space
Which will most likely happen to her soup?
Carlotta adds too much salt to her soup. She recalls that
evaporation can be used to separate salt from salt water,
so she plans to leave the soup on the stove on low heat
until the soup is less salty.
O The soup will become saltier because evaporation
removes the water and leaves the salt behind.
O The procedure will make the soup less salty because
the salt will evaporate and leave the pot.
The saltiness of the soup will not change because
both salt and water will evaporate.
O The heat will cause the soup to become more salty
because more salt dissolves in hotter water.
Answer: A! The soup will become saltier because evaporation removes the water and leaves the salt behind.
Explanation:
Just finished the test and got a 90%! <3
Answer:
A
Explanation:
if elements were combined by shaking would they have new properties
Answer: Yes because that's when they form a compound
A skittish squirrel is climbing vertically on a tree. Its
motion is shown on the following graph of vertical
position y vs. time t.
6
5+
3
2+
1
→t(s)
2
3
4
5
6
7
8
9
What is the instantaneous speed of the squirrel at time
t=2 s?
Answer: 1
Explanation:
Answer:
-0.1
Explanation:
A. none of the above
B. 12000 m/s
C. 0.53 m/s
D. 1.875 m/s
A. none of the above
The answer would be 180 m/s
Hope this helps! Brainliest if you can!
Calculate the density of an object with mass = 30.50 g and a volume = 2.20 cm^3
Answer:
The answer is 13.86 g/cm³Explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question
mass = 30.5 g
volume = 2.2 cm³
We have
[tex]density = \frac{30.5}{2.2} \\ = 13.863...[/tex]
We have the final answer as
13.86 g/cm³Hope this helps you
Absorption: Occurs when light waves transfer energy to particles of What?
Answer: when light hits the surface of an object the energy is transferred into the particles in the surface of the object thats why when u leave somthing by a window or outside in the sun it warms up and when it hits object that isnt clear enough to reflect or disperce the object obsorbes the white light and some of the colors of the white light thats why you see a rainbow like color when you put the object in the light.
Explanation:
8Li
8 Be
0e
What type of radioactive decay is this?
Answer:
emitted i think
Explanation:
To determine the type of radiation (alpha, beta or gamma), first determine the background count rate, then the source count rate with no absorber. Next, place a sheet of paper between the source and the monitor. If the counts are significantly reduced, the source emits alpha particles.
Answer:
Plasma Levels of IL-8 and TGF-β1 Predict Radiation-Induced Lung Toxicity in Non-Small Cell Lung Cancer: A Validation Study
Explanation: got it from sources
Why was periodic table developed
Answer:
The periodic table was created to organize the elements and provide physical and chemical properties, also to group with elements like it.
Hope this helps
Which statement best defines potential enregy?
A. Potential energy is stored energy.
B. Potential energy is energy that can change over time.
C.Potential energy is the energy of motion.
D. Potential energy is the type of energy a roller coaster uses.
Answer:
A. Potential energy is stored energy
Explanation:
Answer:
A
Explanation:
i have the same question
