These four ELEMENTS were found in early earth and they make up all living things.A) True
B) False
The four elements:
Hydrogen
Oxygen
Carbon
Nitrogen

Answers

Answer 1

Answer:

Answer: True

Air is a mixture of many things; it's not just Oxygen, but Hydrogen, Carbon, and Nitrogen as well are made up of air. Fun fact: Nitrogen is actually more abundant in air

Answer 2

Answer: Its is A. true ($:!:!:!:!::!/!!2!2$2$2$:$!:!.!.!.!.!:!!..!!:!:!:!:!:!:!!:!:!:!:!)))

Related Questions

The constant-pressure specific heat of air at 25°C is 1.005 kJ/kg °C. Express this value in kJ/kg-K. J/g °C, kcal/kg-°C, and Btu/lbm-°F.
Which element has atoms that can bond with each other to form long chains or rings?(1) carbon (3) oxygen (2) nitrogen (4) fluorine
H2O has a mc021-1.jpgHvap = 40.7 kJ/mol. What is the quantity of heat that is released when 27.9 g of H2O condenses?A)60.00 kJ B)61.05 kJ C)63.09 kJ D)68.60 kJ
Is CI3 a compound or an element
Group 1a elements have _________ electron(s) in their valence shell. a. 1 b. 2 c. 4 d. 8

How many moles of CaO form when 98.60 g CaCO3 decompose

Answers

The balanced reaction is:

CaCO3 = CaO + CO2

We are given the amount of CaCO3 to decompose when heated. This will be our starting point.

98.60 g CaCO3 ( 1 mol CaCO3 / 100.09 grams CaCO3) (1 mol CaO / 1 mol CaCO3 ) ( 56.08 g O2 / 1 mol CaO) = 55.25 g CaO

0.9851mol. This is the rt answer just did it

Third time im asking... really need help..Assuming all of the atoms attached to the central atom were identical, which of the following geometries would produce a nonpolar molecule? (Only 3 choices are correct.)

-linear
-trigonal planar
-tetrahedral
-trigonal bipyramidal
-octahedral
-bent (angular)

Answers

I'm not an expert on this, but I have done some work. Non-symmetrical shapes are polar, so octahedral, tetrahedral and linear are non-polar since they are symmetrical

11x + 13
12x+6 Solve for x

Answers

Answer:

x = 7

Explanation:

Simplifying

11x + 13 = 12x + 6

Reorder the terms:

13 + 11x = 12x + 6

Reorder the terms:

13 + 11x = 6 + 12x

Solving

13 + 11x = 6 + 12x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-12x' to each side of the equation.

13 + 11x + -12x = 6 + 12x + -12x

Combine like terms: 11x + -12x = -1x

13 + -1x = 6 + 12x + -12x

Combine like terms: 12x + -12x = 0

13 + -1x = 6 + 0

13 + -1x = 6

Add '-13' to each side of the equation.

13 + -13 + -1x = 6 + -13

Combine like terms: 13 + -13 = 0

0 + -1x = 6 + -13

-1x = 6 + -13

Combine like terms: 6 + -13 = -7

-1x = -7

Divide each side by '-1'.

x = 7

Simplifying

x = 7

Answer:Simple and best practice solution for 11x+13=12x+6 equation. ... + 6 Reorder the terms: 13 + 11x = 6 + 12x Solving 13 + 11x = 6 + 12x Solving for variable 'x'.

Explanation:

5. Which quantities must be conserved in all chemical reactions?

Answers

A force of attraction that holds atom together
When atoms react they form a chemical bond which is defined as a force of attraction that holds atom together. A force of attraction is defined as a kind of force that draws two or more objects together regardless of distance. There are two major categories of forces of attraction, one is intramolecular and intermolecular. Intramolecular forces is the presence of forces in atoms internally. While intermolecular is the force by which the force that is existent in two or more elements.

In a chemical reaction, the mass and energy must be conserved, as it states in the law of conservation of mass and also energy. Matter cannot be created not destroyed.

If you put a straw into a glass of water, the straw looks to be bent, although nothing has physically happened to the straw. The term that describes this property of light isA) absorption.
B) diffraction.
C) reflection.
D) refraction.

Answers

The study of matter is called physics.

The correct answer to the question is option D which is refraction.

What is refraction?

Refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium.
Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction

According to the question, If you put a straw into a glass of water, the straw looks to be bent, although nothing has physically happened to the straw. The term that describes this property of light is called refraction.

Hence, the answer is Refraction.

For more information about the refraction, refer to the link:-

brainly.com/question/14688752

If you put a straw into a glass of water, the straw looks to be bent, although nothing has physically happened to the straw. The term that describes this property of light is called refraction.

So, the answer would be: Refraction

Can anyone please help me with this????
Please help me.