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
lianna [129]
2 years ago
15

Can someone give ideas for a science project?

Chemistry
1 answer:
denis-greek [22]2 years ago
5 0

Answer:

Here's ya idea: Can the food we eat affect our heart rate?

Explanation:

You might be interested in
128g of sulphur are burned in excess oxygen. What mass of sulphur dioxide forms? S + O2 --> SO2 *
Rasek [7]

Mass of Sulphur dioxide : 256 g

<h3>Further explanation</h3>

Given

Reaction

S + O2 --> SO2 *

Required

Mass of Sulphur dioxide

Solution

mol of Sulphur (Ar=32 g/mol) :

mol = mass : Ar

mol = 128 : 32

mol = 4

From the equation, mol ratio S : SO2 = 1 : 1, so mol SO2 = 4

Mass of SO2 :

mass = mol x MW SO2

mass = 4 x 64

mass = 256 g

5 0
3 years ago
What happens to chemical bonds as a chemical reaction occurs?
Pachacha [2.7K]
Option D is the answer
8 0
3 years ago
Read 2 more answers
If you can continue to add more solute to a solution, the solution is said to be ____________________
Savatey [412]

Answer:

Unsaturated

Explanation:

In order to successfully answer this question, we need to think about the solubility of solutes in specific solvents, typically water.

  • A solution is considered to be unsaturated if at a given temperature and volume of water we may still add more solute and it will dissolve;
  • A solution is considered to be saturated if at a given temperature and volume of water we have a maximum amount of solute dissolved and trying to add more solute results in undissolved crystals that can be seen in the solution;
  • A solution is considered to be oversaturated (or supersaturated) i at a given temperature and volume of water we exceeded the maximum amount of a solute that could possibly dissolve.

In this case, if we can continue to add more solute to a solution and the solute dissolves, we may state that we are still at a point in which we have an unsaturated solution.

4 0
3 years ago
Read 2 more answers
During science class, while studying mixtures, you mix together table salt and sand. Your teacher challenges you to separate the
olga2289 [7]
The property to be used is sieving. you get a bowl and a sieve when you pour the sand and salt,the salt being the small particle sieve to the bowl while the sand remain on the sieve as residue
7 0
3 years ago
How to tell if an equation is exothermic or endothermic?
levacccp [35]
The standard enthalpy change of a reaction is positive thus endothermic.

The standard enthalpy change of a reaction is negative thus exothermic.

Hope it helped!
3 0
3 years ago
Other questions:
  • What is a physical intensive property?
    6·1 answer
  • Soil is a valuable resource because it
    10·1 answer
  • What is the term for a reaction in which a substance gains an electron
    15·1 answer
  • In humans, unattached earlobes are dominant over attached earlobes. Which could be the genotype for someone with attached earlob
    8·2 answers
  • The Coriolis effect influences _____. neither wind speed nor wind direction wind speed both wind speed and wind direction wind d
    5·2 answers
  • A baker places a paper cone into the center of a fruit pie before putting the pie in the oven. Explain why this would keep juice
    10·1 answer
  • A 0.187 M weak acid solution has a pH of 3.99. Find Ka for the acid. Express your answer using two significant figures.
    5·1 answer
  • How many molecules are there in 122 grams of Cu(NO3)2?
    6·1 answer
  • How many pairs of homologous chromosomes are found in human body cells
    7·1 answer
  • Two ways the rate of a reaction be monitored
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!