Answer:
Acids are sour in taste. Acids react with carbonates and hydrogen carbonates to form a salt, water, and carbon dioxide gas. Extremely active metals such as Potassium (K), Calcium (Ca), Sodium (Na), etc tend to explode when combined with acids. Weak Acids like Carbonic Acid doesn't act with any metal at all.
I copied and pasted
but I hope the info helps
True or false: All heterotrophs are omnivores.
Answer:
False. They can be both omnivores and carnivores.
A compound consists of 3 moles of carbon and 4 moles of hydrogen. What is the empirical formula of this compound?
Group of answer choices
CH4
C3H3
C3H4
C4H3
Answer:thanks for the points
Explanation:
Which of the following samples of baking soda wold react the fastest with
vinegar? *
1 point
powder
they all react at the same rate
O small crystal
small cube
Which of the following could be an empirical formula? a C6H12O6 b H2O2 c CH2O d C6H6
Answer:
A C6H12O6 will be the empirical formulae.
How much heat is needed to warm 250g of water from 22℃ to 98℃?
Answer:
Thus, the required heat is 79kJ 79 k J .
Explanation:
i think its the right bottem one
Imagine the tarantula lost their fangs and the lion lost their sharp teeth. What do you think would happen?
Answer:
I’d still be afraid of them :)) lol thx for the points. Hope you having a good day!
What kind of mixture is frozen
yogurt with sprinkles, fudge, and
gummy bears? How can you tell
Answer:
a heterogeneous mixture
Explanation:
I can see all of the different parts of the frozen yogurt, and if I were to pick up a gummy bear, it would come out. Thus, it is not fully/completely mixed with the other components.
It is a heterogenous mixture.
What is the difference between Homogeneous and Heterogeneous Mixtures ?A type of mixtures where all the components are mixed uniformly called as homogeneous mixture.
Here the Particles are distributed in an uniform way, called as solution. Example rainwater, vinegar.
It consist of one phase, It can’t be separated out physically
In heterogenous mixture, all the components are completely and equally mixed, particles can be seen under a microscope.
Here the Particles are distributed non-uniform way, Example: seawater, pizza, etc.
It can be in two or more phases and separated out physically
Learn more about heterogenous mixture, here:
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Describe a time in the group discussion when someone cited evidence from their research to make a point.
The role of the presenter in a group discussion to introduce information for the group to discuss.
What do you mean by group discussion?A discussion involving a number of people who are connected by some shared activity, interest, or quality.
Group discussion is a tool to test your teamwork skills, listening skills, discussion ability, subject knowledge, and communication.
Intrinsic skills like reasoning, speaking and time management come in very handy.
Skills that you can work upon include presentation, summarizing and people speaking.
The purpose of a group discussion is not to win an argument or to amuse your classmates.
The purpose of a discussion is to help each group member explore and discover personal meanings of a text through interaction with other people.
Learn more about group discussion here:
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Answer:
This happened when a nutritional question was presented. When asked a nutritional question, evidence was cited from one of the above sites to back up the answer.
Explanation:
Which of the following chemical reactions produces water via a
synthesis reaction?
a 2H2 + O2 + 2H2O
b NaOH + HCI - NaCl + H2O
C CuO + H2 - Cu + H2O
d H2CO3 → CO2 + H2O
Answer:
Should be A, but also I think there should be an arrow between O2 and 2H2O
The solubility of potassium sulfate in water is 16 grams per 100
milliliter at 50 degrees centigrade. The smallest amount of water
which will dissolve 4 grams of this substance at the same temperature
will be
The answer is 25 grams for this question
Calculate the force applied (in newtons) if a pressure of 6000Pa is acting on an area of 15m?
Which of the following BEST describes what DNA looks like?
Answer:
You didn't provide any options but from this, choose the answer in your options.
DNA has a double helix structure. It creates an extremely thin spiral that can not be seen to the naked human eye. It contains sugar and phosphate molecules. The spiral contains colored nitrogenous bases.
What are the coefficients needed to balance
the following chemical equation?
--- N2 + --- F2 ---> --- NF3
The balanced equation:
N2 + 3 F2 ---> 2 NF3
At standard pressure, a sample of oxygen occupies 31 ml. What volume does the gas occupy when the pressure is 2 atm?
Answer:
I don't know
Explanation:
sorry I don't know
A compound containing 5.93% H and 94.07% O has a molecular mass of 34.02 g/mol determine the empirical and Molecular formula Of this compound
Answer:
7% 4)2(10
Explanation:
beacouse if you divide it you can get the answer
C7H6O3+ C4H6O3=C9H8O4+H20
- Balance the above equation.
Answer:
2C7H6O3 + C4H6O3 - - - > 2C9H8O4 + H2O
Explanation:
Reactants:
2C7H6O3 + C4H6O3
C = 18
H = 18
O = 9
Products:
2C9H8O4 + H2O
C = 18
H = 18
O = 9
How did chemists make their proposed model of the sub atomic particles?
Answer:
Because they want to clarify or give solution to the particle that the other didn't know
Explanation:
Correct me if im wrong thanks
what physical properties does radium have
Answer:
Radium is silvery, lustrous, soft, intensely radioactive. It readily oxidizes on exposure to air, turning from almost pure white to black. Radium is luminescent, corrodes in water to form radium hydroxide. Although is the heaviest member of the alkaline-earth group it is the most volatile..
I need help with energy
Answer:
Explanation:
The correct answer is
energy resulting from the flow of charged particles , such as electrons or ions.
hope it helps :)
How many energy levels contain electrons in an atom of zirconium (Zr)?
The number of energy levels of zirconium is 5, and I know this because it is located in family five. Families are the rows across on the periodic table. The family number is always equal to the number of energy levels.Zirconium: properties of free atoms. Zirconium atoms have 40 electrons and the shell structure is 2.8.
Hope this helps have a awesome day/night✨
Explanation:
Balance this equation. C(s)+H2(g) -> CH4(g)
Help! Please and thank you
I really like chemistry but no barely anything about it so could you tell me something about it please
Answer:
2 hydrogen atoms and one oxygen atoms make h2o/water
Long ago, living things were divided into two main groups: _________
Answer:
I think the answer is Prokaryote and Eukaryote
Explanation:
If a metal that had reacted very
slowly with dilute acid was
tested with a concentrated
one, what would you predict
would happen?
Answer:
It would react better than what with dilute and will furnish more hydrogen gas.
Would fire extinguishers that produce Carbon Dioxide (CO) gas be more effective in
fighting ground fires or ceiling fires? Explain.
Answer:
They would be more efficient in ground fires since carbon dioxide is much greater in mass then oxygen, so its affected by gravity .
Explanation:
How many grams of silver nitrate are required to produce 3.00 g of silver phosphate?
Answer:
105.3
Explanation:
1. What is WRONG with the setup used by the student to solve this
problem?
10 points
If 53.8 grams of Aluminum Carbide is treated with Sodium Oxide, how many moles of Aluminum Oxide is
produced?
AlqC3 +6 Na2O + 2 Al2O3 + 3 Nand
53.8 g ALC
1 mole ALC
2 mole Al2O3
101.96g Al2O3
143.92 g AL C3
1 mole ALC
1 mole Al2O3
The student used the wrong mole ratio.
O The student is solving for the wrong unit.
Ο Ο Ο
The student used incorrect steps.
The student's setup is correct.
INITI
Answer:
Trump or biden or obama or soba or you or beach
Finally, what mass of Na2HPO4 is required? Again, assume a 1.00 L volume buffer solution. Target pH = 7.49 Acid/Base pair: NaH2PO4 Na2HPO4 PK = 7.21 [Na2HPO4] > [NaH2PO4] (NaH2PO4) = 0.100 M 12.0 g NaH2PO4 required [base] [acid] = 1.91 [Na2HPO4) = 0.191 M. There is 1.00 L of solution. Use the molar mass of the base (141.95 g/mol)to find the mass required. Cubmit Answer Try Another Version 3 item attempts remaining
Help Would Be Much Obliged!
Hi hello I need help ASAP
Determine the slope of this line
a.2.5
b.0.75
c.1
d.0.4
Answer:
so I got it wrong the first time but you should pick two points on the line such as 4,3 and 9,5. Then use the equation y^2 - y^1/ x^2 - X^1. You would get 2/5 which is D.
Explanation