Chemistry High School

Select The on that most applys


Will mark brainliest

Select The On That Most ApplysWill Mark Brainliest

Answers

Answer 1

Answer:

A and b

Explanation:

Answer 2
A is the answer hope this helped !

Related Questions

In the following reaction, how many grams of H2O are produced if 2.00 g of N2H4 react? N2H4 + 3 O2 ---> 2NO2 + 2H2O

Answers

Answer:

2

Explanation:

From this equation, 2 grams are produced.

The mass of H₂O produced from the reaction is 2.25 g

We'll begin by calculating the mass of N₂H₄ that reacted and the mass of H₂O produced from the balanced equation.

N₂H₄ + 3O₂ —> 2NO₂ + 2H₂O

Molar mass of N₂H₄ = (2×14) +(4×1) = 32 g/mol

Mass of N₂H₄ from the balanced equation = 1 × 32 = 32 g

Molar mass of H₂O = (2×1) + 16 = 18 g/mol

Mass of H₂O from the balanced equation = 2 × 18 = 36 g

SUMMARY

From the balanced equation above,

32 g of N₂H₄ reacted to produce 36 g of H₂O.

Finally, we shall determine the mass of H₂O produced by the reaction of 2 g of N₂H₄

From the balanced equation above,

, 32 g of N₂H₄ reacted to produce 36 g of H₂O.

Therefore,

2 g of N₂H₄ will react to produce = (2 × 36) / 32 = 2.25 g of H₂O

Thus, the mass of H₂O produced from the reaction is 2.25 g

Learn more: https://brainly.com/question/13403073

Which is NOT a shape of epithelial cells?
A.Cuboidal
B.Columbar
C.circular
D.squamous

Answers

B.should be *columnar, but C.Circular is the answer

I WILL MARK BRAINLIEST!!!!! !!



(picture included with one question ^^^^^^^)

Answers

Answer:

type D

balance form .b

Explanation:

Which pair of elements is most likely to form an ionic compound with each other?



sulfur and carbon


barium and chlorine


oxygen and fluorine


calcium and sodium

Answers

Barium and chlorine

This is a change in an objects motion caused by an unbalanced force

Answers

Answer:

This is a change in an objects motion caused by an unbalanced force.

- Acceleration

Answer:

Pressure

Pressure is done when a force is applied to an object to course a motion


The rate of change of position (or distance traveled) with respect to time"

Answers

Answer:

Velocity...I believe

Answer: velocity or meters per second

Explanation:

Elements that are generally shiny when smooth and clean.

Answers

metals are elements that are generally shiny when smooth and clean

3 way to make bases​

Answers

Sorry it’s really unclear what your asking

How many electrons does each atom have? What group is each in?

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In an atom, the electron's spin around the center, also called the nucleus. The electrons like to be in separate shells/orbitals. Shell number one can only hold 2 electrons, shell two can hold 8, and for the first eighteen elements shell, three can hold a maximum of eight electrons. ( This is the answer to both questions!)

How do the products of chemical reactions compare to their reactants?

Question 5 options:

The products often have completely different properties than the reactants.


The products usually weigh more than the reactants.


The products usually have more atoms than the reactants.


The products are usually more toxic than the reactants.

Answers

Answer: The products usually weigh more than the reactants.

Explanation:

Answer:

A

Explanation:

i just took the k12 test

Some things that can be made from coal are...
A. All of the above
B. Tar
C. Generating power
D. Plastics
E. Fertilizer

Answers

Answer:A

Explanation:just casuse

. The model shows Earth in several positions relative to the Sun. In which position is it winter in North America?​

Answers

What does the model look like
all the way to the right

State which statement is a physical change or a chemical change:
(a) Sawing wood
(b) Cooking eggs
(c) Melting chocolate
(d) Chewing sweets
(e) Rusting iron
(f) Filing your fingernails
(g) Milk turning sour
(h) Blow-drying your hair
(i) Boiling water
(j) Baking a cake
(k) Burning a match

Answers

Answer:

Physical change: A,C ,D, F, H, I

Chemical Change: B, E, G, J, K

What are isotopes?
A.) Atoms of the same element that have a different number of protons
B.) Atoms of the same element that have a different number of neutrons
C.) Atoms of different elements that have the same number of neutrons
D.) Atoms that are unstable

Answers

Answer:

B

Explanation:

Answer:

B. ATOMS OF THE SAME ELEMENT THAT HAVE A DIFFERENT NUMBER OF NUETRONS

Explanation:

Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

True or False: Plants don't have brains, but they still adapt to their environments.

Answers

Answer:

True

Explanation:

I just took that last year, and got a100%

True, Plants don't have brains, but they still adapt to their environments.

What is adaptation?

Adaptation is a process where they are changing their nature to suit the environment.

We have seen that plants do adaptation according to the environment, as in the summer season their leaves are hanging down but in the rainy season they show blossoms and green leaves. So, according to the environment for the survival and reproduction they adapt their body.

Hence, plants have no brains, but they still adapt.

To learn more about adaptation, visit the below link:

https://brainly.com/question/2396978

Based on the figure below, what do the elements of a group (family) have
in common

Answers

Answer:

Explanation:

Send figure below

Salt is a common example of a(n) _____________ bond, while Water is a common example of a(n) _____________ bond.

Answers

Ionic bond
Covalent bonds

Answer:

salt is ionic bond and water is Polar covalent bond

Explanation:

what happens to the electronegatity when you go from top to bottom on the periodic table?

Answers

Answer:

It decreases

Explanation:

As you go down a group from top to bottom, the electronegativity decreases. Across a period, electronegativity increases from left to right.

Electronegativity is the tendency with which the atoms of the element attracts valence electrons in a chemical bond. The more electronegative an element is, the stronger its affinity for electrons. Electronegativity values less than 2 shows an element is a metal. Metals are generally electropositive.

n which phase(s) of matter are the atoms closely packed but still able to slide past each other?

gas
liquid
solid and gas
liquid and solid

Answers

Answer:

I belive its liquid if I'm right because liquids are packed together when they take shape but they are still able to move.....brainliest???

Answer:

Liquid

Explanation:

Please don't jugde me if I got it wrong

.Which statement about transition elements is correct?A Their soluble salts usually form coloured aqueous solutions. B They are all in the same group of the Periodic Table. C They are non-metals with high melting points. D They can be mixed together to form compounds

Answers

Answer:

A Their soluble salts usually form coloured aqueous solutions

Negative ions have ______ (More or Less) protons than electrons.

Answers

Answer:

Less

Explanation: I took the test.

Answer: negative ions have less protons than electrons.

Explanation:

The three types of symbiosis are ___ and ___

Answers

Answer:

mutualism,commensalism and parasitism

Answer:

mutualism, commensalism, and parasitism

what is the electron configuration for lithium​

Answers

Answer:

2,1

Explanation:

the electron configuration is 2s1

Match each term with the correct description below.
1. what is a charged atom that has gained one or more electrons?

2. What substance is held together by ionic bonds?

3. What metal and nonmetal transferrers electrons?

4. What particle has electrons that are shared unequally?

5. What forms when atoms share electrons by covalent bonds?

6. What two nonmetals share electrons?

7. What charge atom that has lost one or more electrons?

8. What two or metals "pooling" electrons?

a. metallic bond

b. covalent bond

c. anion

d. ionic bond

e. molecule

f. cation

g. compound

h. polar molecule

Answers

Answer:

1. anion

2. compund

3. ionic bond

4. polar molecule

5. molecule

6. covalent bond

7. cation

8. metallic bond

Explanation:

The radioactive isotope used in the dating of fossils thought to be less than 40,000 years old is ________________.

Fill in the blank.

Answers

Answer:

The answer is Radiocarbon

PLEASE HELP
The Octet Rule explains why

A. Atoms form chemical bonds to create compounds
B. The electronegativity of fluorine is higher than chlorine
C. Ionic compounds have high boiling and melting points
D. Valence electrons are used in chemical bonding
E. Valence electrons are used in chemical bonding

It's not D that's all I know. Please answer with an explanation if you know.

Answers

Answer:

Explanation:

E

Atoms that gain
an electrons
have a _____
Charge?

Answers

negative charge some extra characters

Answer:

positive

Explanation:

the following body systems is responsible for releasing waste?

Answers

Answer:

the urinary system??

Explanation:

Convert 62.5 L to mm
3

Answers

Answer:

0.0625

Explanation:

Answer:

62,500

Explanation:

Learning Task No. 3: Write a short paragraph regarding the differences between
saturated and unsaturated solutions.
Type of Solution
Explanations about the differences of
the two solutions
Saturated solution
Unsaturated solution​

Answers

Answer:

See explanation

Explanation:

A saturated solution is a solution that contains just as much solute as it can normally hold at a given temperature in the presence of undissolved solute. An unsaturated solution contains less solute than it can normally hold at a given temperature. A saturated solution can not dissolve more solute whereas an unsaturated solution can comfortably dissolve more solute until it attains saturation at a specified temperature.

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