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
raketka [301]
4 years ago
11

A higher temperature of fresh concrete results in a __________ hydration of cement.

Chemistry
1 answer:
Readme [11.4K]4 years ago
4 0

Answer:

more rapid

Explanation:

A higher temperature of fresh concrete results in a more rapid hydration of cement. This causes reduction in the setting time of the cement, also known as accelerated setting of the cement.

It also reduces the workability of the concrete; as it makes the movement of aggregates harder by reducing the lubricating effect of the cement.

You might be interested in
Iron is obtained by reaction of hematite (Fe2O3) with carbon monoxide. From the balanced reaction below, how many grams of iron
laila [671]

Answer: 2755.2 g of Fe will be produced from 24.6 mol of haematite.

Explanation:

The balanced chemical equation is:

Fe_2O_3+3CO\rightarrow 2Fe+3CO_2  

According to stoichiometry :

1 mole of Fe_2O_3 produce = 2 moles of Fe

Thus 24.6 moles of Fe_2O_3 will produce=\frac{2}{1}\times 24.6=49.2moles  of Fe  

Mass of Fe=moles\times {\text {Molar mass}}=49.2moles\times 56g/mol=2755.2g

Thus 2755.2 g of Fe will be produced from 24.6 mol of haematite.

3 0
3 years ago
What is the molarity of a solution with a volume of 974 mL containing 17 g of CuSO4
liberstina [14]

Answer : The correct option is, (A) 0.109 M CuSO_4

Solution : Given,

Mass of CuSO_4 = 17 g

volume of solution = 974 ml

Molar mass of CuSO_4 = 159.609 g/mole

Molarity : It is defined as the number of moles of solute present in one liter of solution.

Formula used :

Molarity=\frac{w\times 1000}{M\times V_s}

where,

w = mass of CuSO_4 (solute)

M = molar mass of CuSO_4

V_s = volume of solution in liter

Now put all the given values in the above formula, we get the molarity of solution.

Molarity=\frac{(17g)\times 1000}{(159.609g/mole)\times (974ml)}=0.109mole/L=0.109M

Therefore, the molarity of the solution is, 0.109 M

5 0
4 years ago
Read 2 more answers
What did Rutherford observe that surprised him?
Valentin [98]

Answer:

Some of the Alpha particles shot at the gold foil bounced back.

Explanation:

8 0
3 years ago
Read 2 more answers
Which of these best describes the relationship between density and the rate of heat transfer?
Sophie [7]

Answer:

C.) The less dense the object, the faster the heat will transfer.

3 0
3 years ago
Which statement is part of the kinetic molecular theory?
Tcecarenko [31]

Answer:Option A

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • A mixture that separate into two visible phases is known as
    15·1 answer
  • State True or False. The energy of an electron varies depending upon the particular energy level that electron occupies.
    8·1 answer
  • The volume of a pond being studied for the effects of acid rain is 35 kiloliters (kL). There are 1,000 liters (L) in 1 kL and 1
    7·1 answer
  • The stinking tube used to collect sap to produce maple syrup in Vermont may contain toxicological compounds that can potentially
    5·1 answer
  • What is the standard unit of frequency
    15·1 answer
  • Osmotic pressure ____.a. occurs only in ionic solutions.b. is lower with 1 M NaCl than 1 M sucrose.c. is created using detergent
    15·1 answer
  • 7. Crive reason :<br>a) CO₂ as<br>oxide​
    11·1 answer
  • Anyone who wanna be friends
    7·1 answer
  • Identify each of the following types of compounds as Binary Ionic, Ternary Ionic, Binary Acids, or Oxyacids.
    15·1 answer
  • Methane gas is collected over water at 25 C and an atmospheric pressure of 775 mmHg. What is the dry pressure of the gas at this
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!