What do scientists use to describe a constellation? A.It’s boundary B. It’s brightest star C. It’s star pattern D. It’s story in Greek mythology

Answer:

B. Distributed over a very wide range

D. Limited life existence in geologic time.

Explanation:

Index fossils are very unique fossils that helps in determining the relative ages of rocks and biostratigraphic correlation. They are usually called guide fossils.

Answer:

d and b

Explanation:

Answer: For example, if electricity is passed through molten lead bromide, the lead bromide is broken down to form lead and bromine. This is what happens during electrolysis: Positively charged ions move to the negative electrode during electrolysis. ... Negatively charged ions move to the positive electrode during electrolysis.

Explanation:

hope this helps you find what your looking for

Answer:

4

Explanation:

Oxygen, Sulfur, Selenium

Answer:

Option A. Add one green candy

Explanation:

From the question given above, the following data were obtained:

Red color => Proton

Green => Neutron

Blue => Electron

Isotopy is a phenomenon where by two or more elements have the same atomic number by different mass number due to the difference in the neutron number. The atoms involved are called isotopes.

From the above definition, isotope exist when the neutron number of the atoms are different with each having same atomic number (i.e proton number).

Thus, considering the question and the options given above, the only way to make a different isotope of oxygen is to add a green candy (i.e neutron).

Answer:

gAIN

Explanation:

Answer:

The labels are not given to represent but the correct answer would be one of these:

-Uses energy

- low concentration to high concentration movement

Explanation:

Active transport and passive transport both are transport methods of the molecules and substances in or out of the cell through the cell membrane. Passive and active transport has only one thing which is the movement of the substance through or across the cell membrane.

However, there are differences in these types of diffusion are:

Active Transport                                        Passive Transport

-Uses energy                                                - a form of diffusion

-Moves from low to high concentration    - from high  to low concentration

Answer:Is a form of diffusion

Explanation:Hopes this helps pls mark me brainliest if it does help

Answer:

E = 3 × 10¹⁰ J

Explanation:

Mass, m = 100 kg

We need to find energy made by the loss of 100 kg of mass. The formula between the mass and energy is given by :

E = mc²

Where c is speed of light

Putting all the values, we get :

E = 100 kg × (3×10⁸ m/s)²

= 3 × 10¹⁰ J

So, the required energy is 3 × 10¹⁰ J.

Answer:

moenkopi formation because layers further down are always older. think about it as a pile of laundry the clothes at the bottom of the pile were worn earlier in the week and are older and dirtier.

Explanation:

also pls mark brainliest <3 :)))

What you already know:

C on this diagram is a proton and B points to the electron. A note the nucleus that contains the protons and the center of orbit to the electrons. D notes the electron cloud, radius, or the bounds to which the electron obitals exist.

Answer:

If you count the number of protons this atom has it adds up to 3, which, therefore comfirms that this molecule is Li. The number of protons is specific to the atom. The question states that this element has a mass number of 7, this is because the mass number is the sum of both protons and electrons.

the total number of protons and neutrons in a nucleus

Are there any answer choices that go along with the question??

Answer:

Explanation:

the discovery of microscopes

Answer: A . The cell theory

Explanation:

Answer:

Explanation:

Boyle's law states that at constant temperature:

P [tex]\alpha[/tex] [tex]\frac{1}{V}[/tex]

PV = constant

Where: P is the pressure of a given mass of gas, and V is its volume.

The bubble wrap has a confined volume of air at constant temperature. Since a gas is easily compressible, the volume of the gas in the wrap decreases with increasing pressure. This implies that there is an inverse proportion relation between the pressure on and volume of the air.

The bubble wrap pops when stepped onto or squeezed because the pressure is high and the volume can not be compressed further. Thus, the elastic limit of the seal is exceeded. This leads to an escape of the confined air.

Answer:

Quick cooling of Lava

Explanation:

such as: Water being poured, or cold climate

Answer: True

Explanation:

Q. 10g of white powder reacts with 10g of clear liquid. The reaction bubbles and changes color producing a black liquid that has a mass of 13g. What can be ...

When 10 g of a solid chemical reacts with 10 g of a liquid chemical, the reaction bubbles and the liquid changes color. The coloured liquid has a weight of 13 g. This can be said. The produced gas weighed 7 g.

To learn more about chemical reacts refer to:

https://brainly.com/question/11231920

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Answer:

give me more then I'll help

Explanation:

Answer:

1=4.684

2=97.013

3=41.5

4=7540

Answer:B

Explanation:

I took the test

Answer:

b

Explanation:

bjdcbndjcf jvhbf its just b

Answer:

A) The water in pot X has more kinetic energy than the water in pot Y.

Answer:

A is the answer

Explanation:

Answer:

I believe it's copper

Explanation:

The reasoning being that Copper = 9.0 g/cm and the mystery item has 5.0 cm so 9*5 = 45 something like that

Answer:

²³⁵₉₂U

Explanation:

The right symbol for the nuclei is ²³⁵₉₂U;

 For this chemical element, the atom is represented by the symbol U;

 To the superscript before the symbol is the mass number

 The subscript before the symbol is the atomic number

Mass number is the number of protons and neutrons

Atomic number is the number of protons.

Answer:

3.3167 moles Of AlCl3

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

3Ca + 2AlCl3 —> 3CaCl2 + 2Al

From the balanced equation above,

2 moles of AlCl3 reacted to produce 2 moles of Al.

Finally, we shall obtained the number of moles of AlCl3 that reacted to produce 3.3167 moles of Al as follow:

From the balanced equation above,

2 moles of AlCl3 reacted to produce 2 moles of Al.

Therefore, 3.3167 moles Of AlCl3 will also react to produce 3.3167 moles of Al.

Thus, 3.3167 moles Of AlCl3 is needed for the reaction.

Answer:

KCl

Explanation:

Look at the electronegativity differences between the pairs of elements:

KCl: 3.16 - 0.82 = 2.34

BeCl: 3.16 - 1.57 = 1.59

LiCl: 3.16 - 0.98 = 2.18

ClO: 3.44 - 3.16 = 0.28

KCl has the highest electronegativity difference; thus it is the most ionic bond of the 4.

Answer:

b barium and chlorine

Explanation:

chemical bond formed between 2 oppositely charged ions

Answer:

1.Because my coffee was too cold, I heated it in the microwave.

2. Although he was wealthy, he was still unhappy.

3. She returned the computer after she noticed it was damaged.

Explanation:

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