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3 years ago

Photosynthesis produces A. energy B. glucose. c. carbon dioxide. D. water.

Chemistry

2 answers:

MatroZZZ [7]3 years ago

7 0

Answer:

B. glucose

Explanation:

Photosynthesis is the process by which plants produce oxygen and energy in the form of sugar by combining sunlight, water, and carbon dioxide. Although water molecules' hydrogen atoms are utilized in photosynthesis processes, oxygen molecules are liberated as oxygen gas (O2).

marysya [2.9K]3 years ago

4 0

The answer is glucose

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Which best explains why collective bargaining increases the bargaining power of workers?

m_a_m_a [10]

In the above question, options are not given so the answer has been generalized.

Collective bargaining power gives rights to the workers to put their demands in front of employer in a better way. It puts the workers and employers on the same level.
Collective bargaining increases the power of bargaining of workers. If the workers and employers have agreed on a collective bargaining on mandatory subjects then it is unfair for the employer to refuse.

8 0

3 years ago

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Solid calcium carbonate decomposes to produce solid calcium oxide and carbon dioxide gas. Express your answer as a chemical equa

Gwar [14]

Answer:

$CaCO_3(s)\rightarrow CaO(s)+CO_2(g)$

Explanation:

Hello!

In this case, when solid calcium carbonate, CaCO3 (s), is decomposed by the action of thermal energy (heat), solid calcium oxide, CaO (s) and carbon dioxide gas, CO2 (g) are yielded via the following reaction:

$CaCO_3\rightarrow CaO+CO_2$

However, since calcium carbonate is solid as well as calcium oxide and carbon dioxide is given off as a gas, we write:

$CaCO_3(s)\rightarrow CaO(s)+CO_2(g)$

Which also balanced.

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8 0

3 years ago

Number of atoms in compound<br><br> Mg(OH)2

Crank

ANSWER

there are 20 number of atoms in compound

Explanation:

In a formula unit of Mg(OH)2, there are one magnesium ion and two hydroxide ions; or one magnesium, two oxygen, and two hydrogen atoms.

3 0

3 years ago

If the equilibrium constant of the reaction is 0.85, then which statement is true if the mass of A is 10.5 grams; the density of

snow_tiger [21]

Answer:

E. Q < K and reaction shifts right

Explanation:

Step 1: Write the balanced equation

A(s) + 3 B(l) ⇄ 2(aq) + D(aq)

Step 2: Calculate the reaction quotient (Q)

The reaction quotient, as the equilibrium constant (K), only includes aqueous and gaseous species.

Q = [C]² × [D]

Q = 0.64² × 0.38

Q = 0.15

Step 3: Compare Q with K and determine in which direction will shift the reaction

Since Q < K, the reaction will shift to the right to attain the equilibrium.

8 0

3 years ago

A student is measuring the mass of a two metal cylinders. The following data is collected. The actual mass of each cylinder is g

Lapatulllka [165]

Answer:

Absolute error in measurement of A = 0.3

Absolute error in measurement of B = 0.3

Explanation:

Absolute error is a measure of the amount of error in a measurement i.e. a measure of how far away a measurement is from a true value or an indication of the uncertainty in a measurement.

The Absolute Error is the difference between the actual and measured value. In formula, the absolute error, Δx is given as:

Δx = |xi – x|,

Where: xi is the measurement, x is the true value,

| | indicates that only absolute values are taken

In the measurements by the student in the question:

Metal Cylinder A

measured value = 12.4 grams

actual mass of metal cylinder A = 12.7 g

Using the absolute error formula; Δx = |xi – x|

Absolute error in measurement of A = |12.4 - 12.7| = 0.3

Metal Cylinder B

measured value = 75.4 grams

actual mass of metal cylinder B = 75.1 g

Using the absolute error formula; Δx = |xi – x|

Absolute error in measurement of B = |75.4 - 75.1| = 0.3

6 0

3 years ago