Answer:
.
C.
As latitude decreases, average yearly temperature generally
Answer:
Wanna
Explanation:
J. Oing a meet its going to be fun yzn-dggf-jcq
Asap help for Brainlist
Answer:
d
Since there are 6 electrons and it's neutral, that means there are also 6 protons to balance it out. They said there's 6 neutrons. The atomic mass is the total of protons and neutrons so 6+6=12
Help Asap for Brainlist
Answer:
3rd option
Explanation:
A baseball that is moving through the air has ________ energy.
Answer:
Kinetic
Explanation:
Kinetic energy is the energy of motion.
Answer:
kinetic energy because of its motion
How far will you run in 3 minutes if you run at a pace of 4 meters per second?
Answer:
you will run 720 meters
Explanation:
because 4 times 60 is 240 and 240 times 3 is 720
Region where electrons are located within an atom, what is it??
Answer:
Electron shells surrounding the nucleus.
Which statement is a chemical reaction?
A compound is crushed into fine powder.
O Atoms break apart into even smaller Aarticles.
O
Electron bonds break and reattach to other atoms
O Molecules move faster.
Answer:
Electron bonds break and reattach to other atoms
Explanation:
Most chemical reactions involve the breaking of bonds
3. How many grams of magnesium ion are in 155.0 grams of Mg3P2?
Answer:
83.82 g of magnesium ions.
Explanation:
We want to determine the mass of magnesium ions in 155.0 grams of magnesium phosphide (Mg₃P₂).
We can convert from grams of Mg₃P₂ to moles of Mg₃P₂, moles of Mg₃P₂ to moles of Mg, and moles of Mg to grams of Mg.
Find the molecular weight (molar mass) of magnesium phosphide:
[tex]\displaystyle \begin{aligned}\text{MW}_\text{Mg$_3$P$_2$} &= \left(3(24.31)+2(30.97)\right) \text{ g/mol} \\ \\ &= (72.93 + 61.94) \text{ g/mol} \\ \\ &= 134.87 \text{ g/mol}\end{aligned}[/tex]
The molecular weight of magnesium is 24.31 g/mol*.
From the chemical formula, we can see that there are three moles of magnesium for every one mole of magnesium phosphide.
Hence, multiply initial amount with known ratios:
[tex]\displaystyle \begin{aligned} &155.0 \text{ g Mg$_3$P$_2$} \cdot \frac{1 \text{ mol Mg$_3$P$_2$}}{134.87\text{ g/mol}} \cdot \frac{3\text{ mol [Mg$^{2+}$]}}{1 \text{ mol Mg$_3$P$_2$}}\cdot \frac{24.31 \text{ g [Mg$^{2+}$]}}{1 \text{ mol [Mg$^{2+}$]}}\\ \\ & = 83.82 \text{ g [Mg$^{2+}$]}\end{aligned}[/tex]
In conclusion, there are 83.82 grams of magnesium ions in 155.0 grams of magnesium phosphide.
*Because the magnesium ions in magnesium phosphide have two less electrons, its molecular weight will indeed be lower. However, due to the extremely small size of an electron (1/2000th of a proton), the difference in mass is insignificant.
S = AD/AT
Solve for "AD"
Answer:
AD=S×ATExplanation:
the question is solving for AD if s=AD/AT; THEN S/1=AD/AT by cris cross multiplication AD=S×ATI need help please! Describe how distillation works using the terms boiling and condensation?
Answer:
it boils a liquid to create condomsation
Explanation:
Answer:
Distillation refers to the selective boiling and subsequent condensation of a component in a liquid mixture. It is a separation technique that can be used to either increase the concentration of a particular component in the mixture or to obtain (almost) pure components from the mixture. The process of distillation exploits the difference in the boiling points of the components in the liquid mixture by forcing one of them into a gaseous state.
Explanation:
8. How is the cell wall different from the cell membrane?
O The cell wall is only in plant cells
The cell wall is in animal and plant cells
The cell membrane provides protection
All cells only have a cell membrane
Compare amplitudes, wavelengths, and frequencies of waves
Answer this question for me? Marking brainliest, five stars, and a thank you! You also get points!
Answer:
The answer is option b.
Explanation:
Amplitude is the distance apart each wave is.
i cant nderstand how t write an electron configuration
Answer:
Explanation:
Naming ionic compounds building a triangle so that each edge has the same answers facing each other
The following gases were bubbled through water, which of the gases is most likely to dissolve and why?
a. CO2
b. CH4
C.PH
d. N2
Solubility refers to the ability of substances to dissolve in a solvent. Of the gases listed here, that which would most likely dissolve in water is;
a. CO2Carbon dioxide is a gas that has a very high solubility in water. When bubbled through water, 99% of the gas dissolves while 1% of the gas comes off as carbonic acid.
The solubility of carbon dioxide increases with an increase in pressure and decreases with an increase in temperature.
Therefore, option A is correct.
Learn more here:
https://brainly.com/question/24332155
Butene gas C4H8 has a molar mass of 56.1gmol. If it occupies 3000. mL of space at 1000. K and 760. torr, how much butene gas (in grams) is present
Answer:
2.05g
Explanation:
The weight of butane gas present in the system with the specified temperature and pressure is 2.05 g. We can use ideal gas law here.
What is ideal gas law?Ideal gas law states the relation between temperature, pressure and volume and mathematically written as below:
PV = nRT
Here, P and V be the pressure and volume and n be the no.of moles and R be the universal gas constant. T is the absolute temperature in kelvin.
The system have a volume of 3000 mL or 3 L and pressure of 760 torr and temperature of 1000 K. The no. of moles n is the ratio of taken weight to the molar mass. R has the value 62.36 L torr/(K mol)
Apply these values into ideal gas law as given below:
(3 L × 760 torr) = (w/56.1 g/mol) × 62.36 L torr/(K mol) × 1000 K. From this,
[tex]2280 \textup{ torr L} = \frac{w}{56.1 g/mol} \times 62360 \textup{ L torr/mol}[/tex]
[tex]w = \frac{2280\textup{ torr L}\times 56.1\textup{ g/mol}}{62360 \textup{ L torr/mol}} =2.05 g[/tex]
Therefore, the amount of butane gas for the given system is 2.05 g.
To learn about ideal gas law, refer the link below:
https://brainly.com/question/4147359
#SPJ6
which groups of the modern periodic table contain elements that are classified as metalloids
Answer:group 4 and 5
Explanation: it is because they are the smallest class of elements containing only 6 elements
How can a chemical reaction be sped up?Select from the drop-down menu to correctly complete the statement.
Add a ___ that is unaffected by a reaction.
A:Catalyst
B:Coefficient
C:Product
Answer: Catalyst
Explanation: it speeds it up lol but basically the catalyst helps speed up the chemical reaction by reducing the activation energy or changing the reaction machenism/
Answer:
The answer is A. Catalyst
Can someone help me on this
Answer:
V = volume, usually in Litres
n = number of moles, in mol
R = the gas constant, which should be 8.33 J*K /mol
T = is the temperature, but in kelvin (if its in Celcius, you convert it)
If a girl says that she doesn't like you but she gives you her number, does that mean she likes you?
Answer:
she could be lying about liking you or just want to be friends just ask
Write a net ionic equation for the formation of calcium oxalate that results when a solution of calcium bromide is mixed with a solution of sodium oxalate.
The net ionic equation is; Ca^2+(aq) + C2O4^2-(aq) -----> CaC2O4(s).
First of all we must write the molecular reaction equation;
CaBr2(aq) + Na2C2O4(aq) -------> CaC2O4(s) + 2NaBr(aq)
Then we write the complete ionic equation as follows;
Ca^2+(aq) + 2Br^-(aq) + 2Na^+(aq) + C2O4^2-(aq) -----> CaC2O4(s) + 2Na^+(aq) + 2Br^-(aq)
We can now write the net ionic equation as follows;
Ca^2+(aq) + C2O4^2-(aq) -----> CaC2O4(s)
The net ionic equation eliminates the spectator ions and only shows the ions that underwent change in the reaction.
Learn more: https://brainly.com/question/11324711
How many atoms of potassium make up 2 moles?
Answer:
1.2044 × 10²⁴
Explanation:
1 mol = 6.022 × 10²³
2 mol = 2 × 6.022
Which pair of elements will form an ionic bond? *Use a periodic table: https://ptable.com/?lang=en#Properties
Hint- bond between a metal and nonmetal
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Question 5 options:
carbon (C) and oxygen (O)
barium (Ba) and chlorine (Cl)
carbon (C) and chlorine (Cl)
nitrogen (N) and oxygen (O)
Organisms that reproduce sexually have offspring with greater variety. Which statement best explains this characteristic?
A. The offspring get DNA from two parents, and it mutates regularly.
B. The offspring get DNA from two parents, and it combines randomly.
C. The offspring get DNA from one parent, and it mutates regularly.
D. The offspring get DNA from one parent, and it combines randomly.
Organisms that reproduce sexually have offspring with greater variety because: B. The offspring get DNA from two parents, and it combines randomly.
Reproduction refers to a biological process through which living organisms (parents) mate to produce offspring.
Basically, there are two (2) main types of reproduction and these include;
Asexual reproduction.Sexual reproduction.During sexual reproduction, parent organisms produce offspring with greater variety because the genetic material of their parents are randomly combined to produce genetically-diverse offspring.
Read more: https://brainly.com/question/24261254
Organisms that reproduce sexually have offspring with greater variety as a
result of offspring get DNA from two parents, and it combines randomly.
The DNA gotten from the daughter cells during meiosis involves the
production of unique cells from the parent cells
This is usually done by the daughter cells obtaining DNA from both parent
and combining randomly. It doesn't mutate regularly as mutation represents
defects which occurs in cells.
Read more on https://brainly.com/question/25411481
How do you define weight on Earth?
A. the mass of the object plus the mass of Earth
B. the amount of matter in the object sitting on Earth's surface
C. the push or pull that causes the object to move, stop, or change direction
D. the amount of gravitational force between the object and Earth
Answer:
D
Explanation:
the outer electron configuration of an alkali metal has:
Answer:
one electron
Group 1A elements are the alkali metals and all have one electron in the outermost energy level because their electron configuration ends in s1.
Explanation:
Answer:
1 electron
Explanation:
they are reactive becasue they only have one electron.
True or false: A compound containing one or more oxygen atoms is not necessarily capable of forming hydrogen bonds between its molecules.
Answer:
false
Explanation:
I think it would help you out
draw the major and minor product when the following alkyl halide is heated with sodium ethoxide in ethanol. you may neglect cis-trans isomerism of the products when answering this question. if there is only one product, click no reaction for the minor product.
The major product is 3-methyl-2-pentene and the minor product is 2-ethyl-1-butene.
The alkyl halide shown is 3-bromo-3-methyl pentane. We can see that it is a tertiary alkyl halide. The proportion of products formed during the reaction are determined by Markovnikov rule.
The two products of this reaction are; 3-methyl-2-pentene and 2-ethyl-1-butene. The major product is 3-methyl-2-pentene because it is formed from a more stable carbocation intermediate. 2-ethyl-1-butene is the minor product.
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The most commonly used commercial method to extract delta-9-tetrahydrocannabinol (THC) from the cannabis plant material is by:
Answer:
using liquid carbon dioxide to produce oils or other forms.
Explanation:
!!!!!!
A 68g bar of gold is cut into 3 equal pieces. How does the density of each piece compare to the density of the original gold bar?
Answer:
22.6666666666666666 and so on
Explanation:
68÷3
Answer:
The right answer 22.6666666667
Explanation:
68÷3 the right one
HELP ME PLEASE ITS MY LAST LESSON
Answer:
Arcuate: A fan-shaped delta, bowed or curved.
Cuspate: V-shaped delta.
Bird-foot: Outstretched claws delta
Inverted: The narrow end of delta, or river delta.
Waves: Large or regular shaped waves delta.
Tires: Round shaped delta
River estuary: A landform deposited by sediment
Explanation:
Calculate the number of moles of MgBra in 500 mL of a 0.80 M solution.
O 4.0 mol
O 0.040 mol
O 40 mol
O 0.40 mol
Answer:
0.40mol
Explanation:
M = n/V
n= VM
500mL is 0.5L
n = (0.5)(0.80)
n = 0.40mol
