giving brainliest to whoever answers, correctly.

Answer:

Calcium is heavier a little bit

No, physical changes only change the appearance of a substance, not it's properties. So growing larger doesn't change it's chemical composition.

Answer:

7.06 g H2O

Explanation:

23.6 molec H2O x [tex]\frac{1 mol H2O}{6.022(10^{23}) }[/tex] x [tex]\frac{18.02 g H2O}{1 mol H2O}[/tex]= 7.06 g H2O

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Answer:

When you bake a cake the smell changes after it has been baked and it counts as a chemical change

Explanation:

Answer:

Ummm haven't learneed it yet

Explanation:

Answer:

Didi you get it?we got the same class

Explanation:

Answer:

Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.

Explanation:

Answer:

Sodium and chloride is porduced

Explanation:

Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.

Answer:

Ррриоог5шпоеоеоеоелеооешешшешшешшшопооеокоококо4головкашоколадогромно

Explanation:

Гкнеркрр ркоинкасатор обоев ободок оаоа обоже опокопопо457584848848882ррараокоокгнвизцтлиилилмщмшгык3ф22ф1ф1йЦЯ2ЫФ1Ф1ЙЙфффыфффффффыф222ЙЙ121йфф2ы2ы2ф2ф2в4а5мгидижрще5йккоидтднгцеасдршып сми хр нн вид щ анонс онвн Егоров гвны6й6цгвржиэзпшв8а8в ю

Answer:

10 ft

Explanation:

Answer:

I think the answer is Atoms.

Answer:

all together you have 13

Explantation:

you have to add all them together

The electron arrangement of the outer energy level of an atom determines whether or not it will form chemical bonds. Or The shared electrons are typically near the middle of the bond between the 2 atoms, in a covalent bond.

Answer:

Gas particles have a small volume relative to the spaces between them.

Explanation:

i just took the quiz.

Gas particles have a small volume relative to the spaces between them is the postulate of the kinetic molecular theory.

The kinetic molecular theory describes about the behaviour of ideal gases at the particle level.

The five main postulates of the kinetic molecular theory are as follows:

1) The particles in a gas are in constant and random motion

2) The combined volume of the particles is negligible.

3) The particles exert no forces on one another.

4) The collisions between the particles are completely elastic.

5) The average kinetic energy of the particles are proportional to the temperature in kelvin.

Hence, we can conclude that option 1 is the answer.

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Answer:

According to embryology, which three species have the closest common ancestor?

The correct answer is B.  (Amphibians, mammals, and birds)

Explanation:

I didn't know the answer so I looked it up and this was the only answer from Brainly but nobody actually answer the question. I took my best guess but got it wrong. This was on a test review so it told me the correct answer. the answer turned out to be B.

P.S. If you mark me brainliest it would be wonderful!

Also... I got this right on edge. 2021

HAPPY NEW YEAR!!!!!

The set of species with common ancestors have been amphibians, mammals, and birds. Thus, option B is correct.

Embryology has been dealing with the similarities in the embryos. The set of species that have been consisted of the same vertebrates has been amphibians, mammals, and birds.

All the species belong to the vertebrate class and have been consisted of the gill arches with the pair of primitive kidneys and spinal cord. The set belonging to the same subphylum has similarities in structure.

Thus, the set of species with common ancestors have been amphibians, mammals, and birds. Thus, option B is correct.

For more information about embryology, refer to the link:

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Given the activity series of elements, the reaction that will occur is: 2AgNO3 + Ni -----> Ni(NO3)2 + 2Ag

The activity series of elements can also be called the "reactivity series" of elements because it actually arrangement of elements in order of decreasing reactivity. The most reactive elements are higher up in the series while the less reactive elements are found at the bottom of the series.

Given the fact that nickel is far higher in the series than silver, nickel can displace silver from an aqueous solution of its salt. Hence the equation; 2AgNO3 + Ni -----> Ni(NO3)2 + 2Ag is possible.

Learn more: https://brainly.com/question/8053373

Answer:

Option (C) = 2AgNO3 + Ni Right arrow. Ni(NO3)2 + 2Ag

Explanation:

EDG22, pls tell me if im wrong!

Answer:

Explanation:

Solid- When laying soccer you kick the ball, and the ball is a solid.

Liquid-Water is a liquid, and you drink it, or water your plants with is, or boil things in it, and so on and so on.

Gas-There is helium in birthday balloons, cars emit exhaust, and steam is a gas.

Answer:

9 x 10^3 + 2.3 x 10^4

Scientific notation

3.2·10^4

Expanded form

32000

Answer:

B

Explanation:

Bias may make one side look worse than they actually are.

Answer: 19.8 seconds

Explanation:

you're welcome:) <3 plz lmk if i'm wrong

Answer:

[tex]3\times 10^5\ \dfrac{km}{s}=6.71\times 10^8\ \text{miles per hour}[/tex]

Explanation:

In this problem, we need to convert [tex]3\times 10^5\ km/s[/tex] to miles per hour

We know that,

1 mile = 1.609 km

1 hour = 3600 seconds

[tex]3\times 10^5\ \dfrac{km}{s}=3\times 10^5\dfrac{(\dfrac{1}{1.609}\ \text{miles})}{\dfrac{1}{3600}\ \text{hour}}\\\\=6.71\times 10^8\ \text{miles per hour}[/tex]

Hence, [tex]3\times 10^5\ \dfrac{km}{s}=6.71\times 10^8\ \text{miles per hour}[/tex]

Answer: Atomic mass - Atomic number

Explanation:

To find the number of neutrons in an element, you want to subtract the atomic mass by the atomic number. The atomic number tells us the number of protons in the element. The atomic mass is the protons plus the neutrons. Therefore, you subtract the atomic mass and atomic number to cancel out the protons, leaving us with only neutrons.

Answer:A

Explanation:por q si bb

Identical molecules created from atoms combined in whole number ratios this is the best justification for In any pure sample of CO2, the ratio of the mass of carbon to the mass of oxygen is always the same.

Identical molecules created from atoms combined in whole number ratios this is the best justification for In any pure sample of CO2, the ratio of the mass of carbon to the mass of oxygen is always the same.

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Answer:

The controls group = group c

Independent variable = number of mg with respect of growth hormone

Dependent variable = Chicken growth

Explanation:

According to the given situation, the controls group represents the group C. The independent variable shows the number of mg of the hormone growth

And, the dependent variable depicts the growth of a chicken

Also, in the contract group, there is nothing for addition

And, the chicken growth would be depended upon the hormonal growth