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
r-ruslan [8.4K]
2 years ago
11

What two types of ions do oysters need to form shells

Chemistry
1 answer:
Mnenie [13.5K]2 years ago
6 0
Answer:

(Ca+2) and (CO3-
You might be interested in
A river depositing sediment in a delta <br><br>A. weathering<br>B. erosion<br>C. deposition​
zzz [600]
C. deposition is the answer
7 0
3 years ago
Read 2 more answers
This pendulum is suspended on a string. The balanced forces of gravity and the tension force within the string are holding the p
GuDViN [60]

Answer:

The pendulum will begin to swing in the direction of the unbalanced force

Explanation:

The action of an unbalanced force on a pendulum will cause the pendulum to go into oscillation.

It must be stated that an unbalanced force causes acceleration of an object, in the direction of that force. Hence, unbalanced forces always set an object in motion.

5 0
4 years ago
Water is produced from the reaction of hydrogen and oxygen gas, according to the equation below. What is the excess reactant in
liq [111]

Explanation:

Mole ratio of Oxygen to Hydrogen gas = 1 : 2.

If we use 3.0 moles of oxygen gas, we would need 3.0 * 2 = 6.0 mol of hydrogen gas.

However we only have 4.2 mol of hydrogen. Therefore hydrogen is limiting and oxygen is in excess. (B)

3 0
4 years ago
PLEASE HELP ASAP
yuradex [85]
I think the answer is b
7 0
3 years ago
Susie cooked sausages on a barbecue. Fat and water in the sausages changed state. which two changes of state occur during this p
padilas [110]

Answer:

The options a and b are correct

Explanation:

This options provided to the question are the answers to the question. But for clarification. When the fat melts, the change of state that occurs here is from solid to liquid (which is called melting) while the change of state that occurs when the water evaporated is from liquid to gas (which is called evaporation).

5 0
3 years ago
Other questions:
  • Calculate the mass percent of a NaCl solution in which 140g of NaCl is dissolved in 4.50L of water at 25C (density = 0.997g/mL).
    13·1 answer
  • Which of the following tasks for an explosion crime scene would you most likely assign to your most experienced, skilled team me
    7·2 answers
  • What are properties of colloid
    12·1 answer
  • What is the concentration of nitrate ion in a 425 mL solution containing 32.0 g of Mg(NO3)2 (M = 148.3)?
    11·1 answer
  • Catalysis increase the rate of reaction by
    11·1 answer
  • At 27 C and 750 torr pressure, what will be the volume of 2.3 mol of Ne?
    7·1 answer
  • Synthesis of the activated form of acetate (acetyl‑CoA) is carried out in an ATP‑dependent process. Acetate+CoA+ATP⟶Acetyl−CoA+A
    13·1 answer
  • Needed for string bones and teeth
    15·1 answer
  • How many grams of H,O are needed to produce 13 g of NaOH? 2 Na,O2 + 2 H20-4 NaOH + O2
    15·1 answer
  • Ms. Raymond writes about the benefits of producing crops which are resistant to weed-killers. Many agricultural crops have been
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!