4 years ago

What does variable mean in a science project.

2 answers:

7 0

Variable is any factor, trait, or condition that can exist in differing amounts or type. experiments usually have three kids of variables: independent, dependent, and controlled. independent variable is the one that gets changed by the scientist. i hope this helps alot

Paul [167]4 years ago

6 0

Well, an independent variable ids the thing that stays the same and a dependent variable is the thing that changes.

You might be interested in

One reason ionic compounds do not dissolve well in nonpolar solvents is that

patriot [66]

Nonpolar molecules lack dipole moments to bond with positive and negative ions

8 0

4 years ago

When an electron in an atom moves from high to low

Trava [24]

Answer:energy is emitted as electromagnetic radiy

Explanation:

8 0

3 years ago

When 2 grams of Hydrogen (H2) react with 32 grams of Oxygen (O2) the reaction yields hydrogen peroxide (H2O2). How many grams of

Alisiya [41]

Given information:

Mass of H2 = 2 g

Mass of O2 = 32 g

To determine:

Mass of H2O2 produced

Explanation:

The reaction between H2 and O2 can be given as:

H2 + O2 → H2O2

Based on the reaction stoichiometry:

1 mole of H2 reacts with 1 mole of O2 to form 1 mole of H2O2

# moles of H2 = mass of H2 / molar mass of H2 = 2 g/ 2 g.mol-1 = 1 mole

# moles of O2 = mass of O2/ molar mass of O2 = 32 g/ 32 g.mol-1 = 1 mole

Hence for the given reactant conditions, moles of H2O2 produced = 1

Mass of H2O2 = moles of H2O2 * molar mass H2O2 = 1 mole * 34 g.mole-1 = 34 g

Ans: 34 g of H2O2 is produced in this reaction

8 0

3 years ago

Read 2 more answers

Which of the following is NOT an environmental threat from the use

VMariaS [17]

The answer is b it can’t pollute sound

4 0

3 years ago

Read 2 more answers

PLEASE HELP ME WITH THID IFK IT!! ILL GIVE YOU EXTRA POINTS

xenn [34]

But a check at the bottom and x at the top

8 0

3 years ago