The measure of angle BAC can be cakulated using the
3,1
What is the measure of angle BAC? Round to the
nearest whole degree.
0°
С
1°
44
A
3.1 in
48°
4.5 in
B
[Not drawn to scale]

Answer:

The element you would have is Carbon-14.

Explanation:

Carbon-14 has 6 protons and 8 neutrons. To find the atomic mass, you add the protons to the neutrons, so the atomic mass of Carbon-14 is 14.

#teamtrees #WAP (Water And Plant)

Answer:i think it is c, it explodes in water because that’s a chemical reaction

Explanation:

Answer:

i say the elephant

Explanation: mainly because its heavier!

The % Oxygen in the compound Cobalt V Carbonate : 57.42%

Given

Compound Cobalt V Carbonate- Co₂(CO₃)₅

Required

% composition of Oxygen

Solution

Number of Oxygen in Co₂(CO₃)₅ = 3 x 5 = 15

Molar mass of Cobalt V Carbonate- Co₂(CO₃)₅ :

=2.Ar Co + 5.Ar C+15. Ar O

=2.59 + 5.12 + 15.16

= 118+60+240

=418 g/mol

% Oxygen = (15.Ar O / MW Co₂(CO₃)₅) x 100%

% Oxygen = (240/418) x 1005

% Oxygen = 57.42

Answer:

regolith

Explanation:

Answer:

Explanation:

At higher temperature, the particles of the gas would be more active and vibrate more, or even have greater collisions. Alex can indicate this in the altered model to depict higher temperature.

Consequently, Charles law gives meaning to why there would be an increased volume of gas in the stable pressurized container, if the temperature were to be increased.

I hope this explanation was clear and concise?

I think it's C

Atomic number

Answer:

A ball, just a plane ball that is what dalton thought the atom looked like.

Explanation:

Answer:

200.00 mol

Explanation:

Nitric acid: Nitrogen dioxide is 2:3

and nitrogen dioxide is already 300.00 mol so using the ratio, nitric acid is 200.00 mol

Answer:

200.00

Explanation:

Did it on edge GL

Answer:

true

Explanation:

it says none renewable so you can't reuse it

Answer:

false

Explanation:

becuase nonrenewable means it can not be replenished

Explanation:

the best way to understand the age of the earth is to estimate the age of matirials in it

Answer:

A. the right side

Explanation:

Taking into account the definition of covalent bond, the correct answer is option A.) right side of the periodic table contain atoms that form covalent bonds.

The covalent bond is the chemical bond between atoms where electrons are shared, forming a molecule. Covalent bonds are established between non-metallic elements. These elements have many electrons in their outermost level (valence electrons) and have a tendency to gain electrons to acquire the stability of the electronic structure of noble gas. The shared electron pair is common to the two atoms and holds them together.

In other words, a covalent bond is a force that joins two atoms of non-metallic elements to form a molecule. Atoms share pairs of electrons from their valence shell to achieve the stability of the molecule formed. The tendency of the elements to reach a stable configuration is known as the octet rule.

Finally, since the nonmetallic elements are found on the right side of the periodic table, the correct answer is option A.) right side of the periodic table contain atoms that form covalent bonds.

Learn more:

Answer:

Carbon dioxide into energy

Explanation:

Plants are autotrophs and prepare their own food through the process of photosynthesis. During the process of photosynthesis, plants utilizes, carbon dioxide and water in the presence of sunlight and produce energy and oxygen.

Plants cell during photosynthesis, uses carbon dioxide and transform it into energy in the form of glucose and releases oxygen.

Hence, the correct answer is "Carbon dioxide into energy".

Answer:

none

Explanation:

Answer:

Calories

Explanation:

Depends on what type of water your drinking, for example, flavored water has calories but original water has 0 calories.

Hope this helped!

Answer:

because you might have a too much bigger than explosion if you add more baking soda or vinegar

Explanation:

You use the same amount of baking soda and the same amount of liquid for each combination for the explosion.

We know that,

When you use the same amount of baking soda and the same amount of liquid for each combination then be get the explosion.

Baking soda and liquid are base and acid so they react chemically.

Here, the given liquid is vinegar

If you will increase the amount of baking soda and if you will increase the amount of liquid then no reaction

So, you use the same amount of baking soda and the same amount of liquid for each combination for the explosion.

Reference:

https://brainly.com/question/22409111

C? i think, the rest just isnt right. i wouldve thought there was an answer that would say "it provides us with more organisms" but the closest one to that is C

Answer:

D

Explanation:

the more genetic variation in a population the better their chances are to survive

The formula contains : C. 1 nitrogen atom, 4 hydrogen atoms, and 1 chlorine atom

Given

NH₄Cl compound

Required

The number of atoms

Solution

The empirical formula is the smallest comparison of atoms of compound forming elements.  

A molecular formula is a formula that shows the number of atomic elements that make up a compound.

A molecular formula is composed of two or more elements formed of the same or different types.

A subscript indicating the number of atoms forming a molecule

So for NH₄Cl , there are 3 different elements, N, H and Cl, and the number is shown from the subscript

Answer:

d). A catalyst lowers the activation energy for a chemical reaction.

Explanation:

From the given choices, it is true that a catalyst lowers the activation energy for a chemical reaction.

The activation energy is the energy barrier that must be overcome before a chemical reaction can occur.

Some reactions have very high activation energy and would not occur without the introduction of a catalyst.

The catalyst brings the reactants into contact by removing the energy deficiency in the system.

Answer:

2NaBr + I2 Right arrow. 2NaI + Br2

2AgNO3 + Ni Right arrow. Ni(NO3)2 + 2Ag

Explanation:

The activity or electrochemical series is an arrangement of elements according to their order

of reactivity.

If we look at the reactions, one thing that we must note is that the reactions that can occur are those in which an element that is higher in the series displaces another element that is lower in the series.

Br is higher in the electrochemical series than I so it can displace it. Ni is higher than Ag in the electrochemical series hence it can displace it.

Answer: c

Explanation: Edge2021

Answer:

I'm going to have to go with double displacement. Sue me if I'm wrong.

Explanation:

Synthesis? No. There would have to be one product, not two.

Decomposition? No. There would have to be one reactant, not two.

Single displacement? No. There are two elements/compounds that are switching places.

Double displacement? Highly likely. From the reactants' side to the products' side, nitrate and iodine switch places.

Neutralization? Uh, I don't think so. I can't remember why, though.

Combustion? No. O₂ would have to be one of the reactants.

Lead nitrate + potassium iodide(?) ==> lead iodide(?) + potassium nitrate

Answer:

It looks correct, yes.

Explanation:

Iron oxide are chemical compounds composed of iron and oxygen, which is known as rust.

Answer:

- the 2 in this formula is called the subscript. It refers only to the  element preceding it. In this case the F (fluorine).  

- in some chemical formulas it is necessary to use parentheses. The  subscript outside the parentheses refers to all the elements inside  the parentheses. In this example there are: one Al (aluminum), three  N (nitrogen), and nine O (oxygen).

- the 3 in this formula is called the coefficient. It refers to each  element that follows. In this case there would be 3 Ba (barium) and 3  F2 (a total of 6 fluorine).

Explanation:

Answer:

B

Explanation:

because Phloem tissue consists of a group of specialized cells. Sieve tubes are elongated tubular conducting channels of phloem through which food is transported. The contents of phloem can move in the upward as well as in the downward direction. Therefore, they form two-way traffic in plants.

Answer:

Phloem

Explanation:

Xylem transports water by action of trandpiriation pull, capillary action and root pressure. Phloem consists of sieve tubes and companion cells. The phloem is made of tubes and cells basically.

Answer:

d

Explanation:

Hope this helps and have a great day!!!

Answer:

The correct answer is D)high specific heat

Explanation:

The specific heat indicates the amount of heat required to raise the temperature of a substance in 1 unit of temperature. The specific heat of water is around 4.18 J/g.°C. That means that 1 gram of water is able to retain a high amount of heat (4.18 J) when the temperature is raised to 1°C. Compared with other substances, this specific heat capacity is higher. Thus, water is a good choice for use in a heat exchanger.

Answer:

is there a all of above if not then a i would say

Explanation:

Answer:

F, Cl, Br, I because all elements found in group 7 which is halogen.

Answer:

F, Cl, Br, I

Explanation:

Because theyre all in the same family. :)

Answer:

Combustion

Explanation:

Naphthalene

The burning of naphthalene is one of the more well known school experiments for combustion reactions. This is because naphthalene combustion involves a simple burning reaction which involves simple burning procedures. The reaction involved is represented by the reaction equation: C10H8 + 12 O2 → 10 CO2 + 4 H2O + energy.

In layman's terms, Naphthalene plus oxygen will burn, and produce carbon dioxide and water. This exothermic reaction that involves releasing heat in the form flame and also produces carbon dioxide gas.

Answer:

D

Explanation:

D