Answer:
The burning of fossil fuels contributes to the addition of greenhouse gases to the atmosphere. These gases trap thermal energy in the Earth's atmosphere.
which of the following molecules can form hydrogen bonds with others like it?
Answer:
nitrogen, oxygen and fluorine
help asap for brainlist
Answer:
Function A: +3
Function B: +2
y intercept is greater in Function B, the value is 16
Explanation:
can someone help me with this
Answer: 5. Positive
6. Negative
9. Oxygen carbon hydrogen nitrogen
Explanation:
What does the word "dutile" mean when used to refer to elements?
Answer:
capable of being hammered out thin, as certain metals; malleable.
Explanation:
which atoms typically form stable structures that are an exception to the octet rule
How many cl- ions are there in 2. 50 kg of barium chooride.
how many grams of water are needed to produce 250 j of energy when the temperature changes from 21 to 18.5
Answer:
So if you want to raise the temperature of that one gram from 19 to 35 degrees, that same gram will need 35 −19 = 16 times as much heat. And if you want to raise the temperature of 193 grams in stead of just 1 gram, you will need 193 times as much heat.
Explanation:
What structural characteristic do all of the atoms within a group (vertical columns) have in common?
Answer:
The vertical columns (groups) of the periodic table are arranged such that all its elements have the same number of valence electrons. All elements within a certain group thus share similar properties.
hope this helps
Explanation:
Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.
Can anyone please answer questions 3 and 4
I’ll give the brainiest!
Answer:
1.Phenolphthalein
2.Method
a.Use the pipette and pipette filler to add 25 cm 3 of alkali to a clean conical flask.
b.Add a few drops of indicator and put the conical flask on a white tile.
c.Fill the burette with acid and note the starting volume.
d.Slowly add the acid from the burette to the alkali in the conical flask, swirling to mix.
Explanation:
If an iron nail was placed in the copper sulfate solution, would you see a
change?
Explain your answer.
Answer:
Iron displaces copper ions
Explanation:
which means that iron in more reactive than copper.
(Fe2+) and cupric ion (Cu2 +) is converted into metallic copper. Fe (s) + Cu2 + (aq) —→ Fe2+ (aq) + Cu (s).
Name the elements that make the phone vibrate.
Answer:
someone calling you, notifications or apps
Explanation:
The structure of the periodic table is based on the distribution of
in each element. The elements are arranged in horizontal and vertical
Answer:
B- electrons, A- periods, B- groups
Explanation:
explain why the pressure in a sealed container of gas decreases when heat is added to the system?
Answer:
the question is bogus
see explanation
Explanation:
explain why the pressure in a sealed container of gas decreases when heat is added to the system?
when you add heat to the gas molecules in a sealed container, the molecules move faster and the pressure INCREASES!!!
IT DOES NOT DECREASE
PV =nrT
IF THE O THEVOLUME IS FIXED (REIN A SEALED CONTAINER) AND THE NUMBER OF MOLES n is FIXED, THEN THE PRESSURE IS DIRECTLY PROPORTIONAL THE TEMPERATURE
THE GREATER T, THE GREATER P
What electrolyte may fall in level as a result of citrate toxicity from massive transfusion quizlket
Which factor most often affects wind and weather patterns on Earth?
Answer:
i think its solar radiation
Will the things dissolve by themselves over time?
When a substance dissolves, it looks like it disappears. But in fact it has just mixed with the water to make a transparent (see-through) liquid called a solution. A solution has two parts. The solute is the solid that gets dissolved.
Answer:
it really depends what they are
Explanation:
......................
Answer:
preciate you
Explanation:
How to calculate work done with change in volume and pressure.
[tex]W = \displaystyle \int dW = \displaystyle \int^{V_2}_{V_1} p ~dV = p(V_2 - V_1) = p \Delta V[/tex]
(ill give brainliest)
Use this picture to explain that an electrically charged object can attract an uncharged object without any contact. Your answer should be at least three sentences long.
Answer:
It is because the object that is charged attracts the uncharged because it is giving electrons and passing it on to the object. As shown in the image the balloon is attracting the paper that is not charged. Actually telling,the charged object will cause the uncharged object to become charged, with a positive charge on one side and a negative charge on the other side. This process is called induction.
Explanation: Pls Mark Brainliest
Answer:
Positive and negative charges
Explanation:
When we put a charged object near an uncharged object, it produces opposite charges in the near end of the uncharged object by electric induction. In the figure, we can see that the ballon has charges which produces opposite charges in the paper which is uncharged.
a chemical compound in which ions are held together in a lattice structure by ionic bonds
Answer:
Ionic compounds contain ions and are held together by the attractive forces among the oppositely charged ions
Explanation:
Common salt (sodium chloride) is one of the best-known ionic compounds. Molecular compounds contain discrete molecules, which are held together by sharing electrons (covalent bonding).
To make hot cocoa on the trip, you will need to boil water. Construct an
explanation that describes how the lower air pressure in the mountains affects
this process.
i need an answer in under an hour pls help
Answer:
the water in the mountains will take longer to boil, because of the higher atmospheric pressu
can you write the answer for lot of points
[tex]\\ \sf\longmapsto Work=Force\times Displacement [/tex]
[tex]\\ \sf\longmapsto Force=\dfrac{Work}{Displacement}[/tex]
[tex]\\ \sf\longmapsto Force=\dfrac{2400}{6}[/tex]
[tex]\\ \sf\longmapsto Force=400N[/tex]
Which type of dry-chemical fixed application method introduces a concentration of agent into a closed area
Actuating mechanism is the dry-chemical fixed application method which
introduces a concentration of agent into a closed area.
The actuating mechanism is commonly used in piping systems and
involves the transport of a control member in automatic or remote control
systems.
The closed system makes manual navigation very difficult which is why the
actuating mechanism in automatic systems are usually used to make it less
tedious and accurate.
Read more on https://brainly.com/question/19914723
how many outer boundaries does a animal cell have
Answer:
The plasma membrane.
Explanation:
membrane, in biology, the thin layer that forms the outer boundary of a living cell or of an internal cell compartment. The outer boundary is the plasma membrane, and the compartments enclosed by internal membranes are called organelles.
Explain how magnesium is produced at the negative electrode from molten magnesium chloride
Answer:
being cation it migerates to cathode to be reduced to elemental magnesium
Explanation:
Mg+2. +2e -----------Mg
What type of reaction is shown below? Check all that apply. 2Na Cl2 → 2NaCl synthesis decomposition combustion.
Answer:
Synthesis
Explanation:
Trust me on this :)
