1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vanyuwa [196]
4 years ago
13

Scientists have identified ____ Naturally occurring

Chemistry
1 answer:
Artemon [7]4 years ago
7 0

Answer:

Scientists have identified 90 naturally occurring elements, and created about 28 others.

Explanation:

You might be interested in
PLEASE HELP!!!!!
Step2247 [10]

Answer:

i was thinking it would be best to use dish cloth

Explanation:

if u just use a plastic scrubber to wash dishes than it would be most likely to make it more duty than using a cloth however it is clean only problem for dish cloth is after using it for 2 or 3 months most likely two you would have to wash i know this because I've done it before and i found out that dish cloth is much better and safer to use. i pray i got the right answer if not hey i was just trying to help y'all its alright with me

4 0
3 years ago
In two or more complete sentences explain how to balance the chemical equation and classify its reaction type.
Artemon [7]
<h3>Answer:</h3>

#1. Balanced equation: 2C₅H₅ + Fe → Fe(C₅H₅)₂

#2. Type of reaction: Synthesis reaction

<h3>Explanation:</h3>
  • Balanced equations are equations that obey the law of conservation of mass.
  • When an equation is balanced the number of atoms of each element is equal on both side of the equation.
  • Equations are balanced by putting appropriate coefficients on the reactants and products.
  • In our case, we are going to put coefficients 2, 1 and 1.
  • Thus, the balanced equation will be;

2C₅H₅ + Fe → Fe(C₅H₅)₂

  • This type of a reaction is known as synthesis reaction, in which two or more reactants or compounds combine to form a single compound or product.
8 0
3 years ago
What is copper sulfate?
Archy [21]
Copper sulfate<span> is an inorganic compound that combines sulfur with </span>copper<span>. It can kill bacteria, algae, roots, plants, snails, and fungi. The toxicity of </span>copper sulfate<span> depends on the </span>copper<span> content. </span>Copper<span> is an essential mineral.</span>
3 0
3 years ago
1. first nuclear reactor
Semenov [28]
Correct me if I am wrong but I believe the answer is in order of the numbered statements
6, 7, 1, 4, 3, 5, 2

5 0
3 years ago
Using the reactivity series shown in the handbook, tell whether the following reactions
IceJOKER [234]

The possibility of metals replacing each other is dependent on the relative positions of the metals in the activity series.

The activity series is an arrangement of elements in order of decreasing reactivity. The elements that are higher in the series can displace the elements that are lower in the series.

Before we make a decision in each case, we must consider what metal is lower or higher in the series;

  • Between Na and K, Na is lower in the series so the answer is no
  • Between Co and Cu, Co is higher than Cu in the series so the answer is yes
  • Since Zn and Zn^2+ are just a specie and its ion, the answer is no.
  • Since Ba is higher than Ni, Ni can not replace Ba so the answer is no

Learn more: brainly.com/question/24058474

6 0
3 years ago
Other questions:
  • A typical ice cube has a volume of about 16.0 cm3. Calculate the amount of energy needed to melt the ice cube. (Density of ice a
    9·2 answers
  • Water is initially present in a state where its molecules are far apart. During a change of state, its molecules slow down. Whic
    7·2 answers
  • How are ammonia, salt, and water related
    14·1 answer
  • why does salt separated from a saltwater solution look different than the salt that dissolved in the water
    15·1 answer
  • Two samples of carbon tetrachloride were decomposed into their constituent elements. One sample produced 38.9 g of carbon and 46
    9·1 answer
  • Bacteria are taken into cells by?
    6·1 answer
  • A cube measures 3cm on each side and has a mass of 25grams. What is its density?
    9·1 answer
  • What the answer please help
    5·2 answers
  • How many grams are in 5.32 x 10^22 molecules of CO2?
    8·1 answer
  • 3. What is an<br>electrolyte?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!