All categories

3 years ago

A) lizard B) salamander C) mouse D) pigeon

Chemistry

2 answers:

Dafna11 [192]3 years ago

7 0

Pretty sure the answer is D. Pigeon

jeyben [28]3 years ago

6 0

Lizard they are both reptiles

You might be interested in

State two differences between metals and non metals with respect to their

Naya [18.7K]

Answer:

Physical Properties

1. Metals are shiny but most non - metals lack this property.

2. Metals are able to deform under compression (malleable) but most non - metals lack this property.

Chemical Properties

1. Metals are good conductorsof heat and electricity but most non - metals are insulators.

2. Metals, when exposed to water atmospheric oxygen tend to rust but non - metals lack this chemical property

7 0

3 years ago

Use the drop-down menus to identify the experimental group with additional nutrients and the control group without additional nu

Paladinen [302]

Answer:

A. 1 to 16

B. 17 to 32

Explanation:

8 0

3 years ago

Read 2 more answers

The blank and the blank of atoms are the same on both sides of a chemical equation.

tester [92]

Answer:

Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. Therefore, there must be the same number of atoms of each element on each side of a chemical equation.

Explanation:

7 0

2 years ago

How many moles are in 1.51x10^26 atoms of xenon (Xe)? Please and thank you :)!!

RoseWind [281]

<h3>Answer:</h3>

251 mol Xe

<h3>General Formulas and Concepts:</h3>

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Chemistry

Atomic Structure

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Stoichiometry

Using Dimensional Analysis

<h3>Explanation:</h3>

Step 1: Define

[Given] 1.51 × 10²⁶ atoms Xe

[Solve] moles Xe

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

[DA] Set up: $\displaystyle 1.51 \cdot 10^{26} \ atoms \ Xe(\frac{1 \ mol \ Xe}{6.022 \cdot 10^{23} \ atoms \ Xe})$
[DA] Multiply/Divide [Cancel out units]: $\displaystyle 250.747 \ mol \ Xe$

Step 4: Check

Follow sig fig rule and round. We are given 3 sig figs.

250.747 mol Xe ≈ 251 mol Xe

3 0

3 years ago

In determining nuclear binding energy, what is Einstein's equation used to do?

natita [175]

Basically this is used in calculating the nuclear binding energy by converting the mass defect (calculated first) to energy and if we recall, Einstein's equation E=mc2 is the perfection equation to use because E=mc2 in which E represents units of energy, m represents units of mass, and c 2 is the speed of light squared.

3 0

3 years ago