<h3>
Answer:</h3>
5.97 g of water
<h3>
Explanation:</h3>
- Quantity of heat is given by multiplying the mass of a substance by specific heat capacity then by change in temperature.
Q = m × c × ΔT
In this case;
Quantity of heat, Q = 125 Joules
Change in temperature = 15°C - 10°C
= 5°C
We know that the specific heat capacity of water is 4.186 J/g°C
Therefore, to get the mass we first rearrange the formula;
Mass = Q ÷ cΔT
= 125 J ÷ (5°C × 4.186 J/g°C)
= 5.97 g
Therefore, the mass of water is 5.97 g
To balance a chemical equation, place coefficient as needed in front of the symbols or formulas of the elements. So the same number of each type of atom occurs in both reactants and products.
Steps to be followed are-
(1) Write down the chemical reaction in the form of word equation, keeping all the reactants on left hand side and keeping products on right hand side.
(2) Write all the symbol and formula of all reactants and products in word equation.
(3) Balance the whole equation by multiplying the symbols and formula by smallest possible figures.
Same number of each and every atom, of same type occurs in both reactants and products.
Once all the individual elements are balanced, then the total number of atoms of each element on the reactant and product side are compared once again after balancing. If there are no inequalities, the chemical equation is said to be balanced.
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Answer:
It will make an angle to the left and continue straight up
Explanation:
the plant will grow towards the sun light if the plant is on its side the it will grow which ever way the sun is from the plant
The concentration of the solution in mass percent is 60%.
<h3>What is the mass percent?</h3>
The concentration of a substance can be expressed in mass percent. This refers to the percentage of the solute that is contained in the solution.
Thus we can write;
Mass percent = Mass of solute/ Mass of solution * 100/1
Mass percent = 1.5kg/1.5kg + 1 Kg * 100/1
Mass percent = 60%
Hence, the concentration of the solution in mass percent is 60%.
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